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FILE NAME: Kentile (KEN) DATE: 1979 Sept DOC#: KEN018 DOCUMENT DESCRIPTION: NIOSH Report - Hazard Evaluation & Technical Assistance - Kentile Floors, Inc. s I* t- y c Sjtf U .S. DEPARTMENT OF HEALTH, EDUCATION, AMD WELFARE CENTER FOR DISEASE CONTROL NATIONAL INSTITUTE FOR OCCUPATIONAL SAFETY AND HEALTH CINCINNATI, OHIO 4S226 HAZARD EVALUATION AND TECHNICAL ASSISTANCE REPORT NO. HE 78-73-612 TOXICITY DETERMINATION AENTILE FLOORS, INC. CHICAGO, ILLINOIS SEPTEMBER 1079 A survey team fo r the National In s titu te fo r Occupational Safety and Health (NIOSH) performed a health hazard evaluation at K e n tlle Floors I n c . , Chicago, I l l i n o i s on June 26-27 and August 19-22, 1978. to evaluate alleged worker exposure to asbestos, polynuclear aromatic hydrocarbons (PNA), v in y l chlo ride monomer, t a lc , alpna methyl styre n e , and numerous organic and Inorganic dyes ana pigments. The methodology used to evaluate the workers' environment Included: (1 ) environmental a i r sampling, (2) a review of m a te ria ls Inventory and the m aterial sa fe ty data sh e e ts, (3 ) a review o f the Occupational Safety and Health Adm inistration (OSHA) oata collected during previous v i s i t s , ( i ) ( medical interview s and evaluations of workers, (5 ) a review of employees' health records, (6 ) a review of pertinent s c ie n t if ic lit e r a t u r e , <7) a review of tne company' s re sp ira to r program, and (8) observations c f employees' work p ra c tic e s and engineering c o n tro ls. Environmental a i r samples and bulk samples were co lle cted and analyzed fo r the following contaminants (see Tables I-V T).: carbon b la ck , PNA's (benzo(a)pyrene, anthracene, phenanthrene, pyrene, chrysene, benzene- soluble fra c t io n ), m ineral s p i r i t s , benzene, asbestos, total dust, lead , and to ta l cnromium. Asbestos was the only contaminant found to exceed a NIOSH recomnended c r i t e r i a . Eight of t h ir t y asbestos samples exceeded the NIOSH recoimiended c r it e r i a of 0.10 fib e rs per cubic centimeter o f a ir. No cases of asbestosls were documented among the past and present workers a t th is p lant. Of the three autnenticated cases of cancer revealed in t h is In v e stig a tio n , only one snould po ssib ly be regarded as being of occupational o rig in . Since th is cancer has a lengthy la te n t p erio d, ' 1 .e . , the amount of time elapsing between exposure to occupational carcinogen(s) and the development of a tumor, one cannot be sure In th is case what the causative agent(s) could be, as p rio r to Ms f i r s t employment a t th is p la n t, the man worked In an industry associated with the development of respiratory-tract cancers. ' SP217591 ^SPJ175l *I - PLAINTIFF'S Page 2 - Hazard Evaluation and Technical Assistance Report No. 73-73 I I . OISTRIBTUION AND AVAILABILITY OF DETERMINATION REPORT Copies of th is Determination Reoort are c u rre n tly a v a ila b le upon request from N10SH D ivisio n o f Technical S e rvice s. Information Resources ana Dissemination Section, 4676 Columbia Parkway, C in c in n a ti, Ohio 45226. A fte r 90 days the report w ill be a v a ila b le through the National Technical Information Services (N TIS), S p rin g fie ld , V irg in ia . Information re garding it s a v a ila b ilit y through NTIS can be Obtained from NIOSH p ub lica tions o ffic e a t the C in cin n ati address. Copies of th is report have been sent to the fo llo w ing : A. iCentile Flo o rs, In c ., Chicago, Illin o is B. Authorized representatives of the United Rubber Workers (URU) Local No. 505, Chicago, I l l i n o i s C. International Union of URW, Akron, Ohio 0. NIOSH - Region V , E. U .S. Department o f Labor - Region V For the purpose of informing the approximately 50 " affe cte d employees" , the employer sh a ll promptly "post" fo r a period of 30 calendar days, the Determination Report in a prominent p la ce (s) near where the exposed employees work. I I I . INTRODUCTION Section 2 0 (a)(6 ) of the Occupational Safety and Health Act of 1970, 29 U .S .C . 6 69 (a)(6 ) au th orizes the Secretary of H ealth, Education, ana W elfare, following a w ritte n request by an employer or authorized represen ta tiv e of employees, to determine whether any substance normally found 1n the place of employment has p o te n tia lly to x ic e ffe c ts in such concentra tions as used or found. The National In s tit u t e fo r Occupational Safety and Health received such a request from an authorized representative of employees. The request alleged that personnel were exposed to m aterials used 1n the production o f vin yl asbestos and asphalt asbestos flo o r covering.. Furthermore, "the 0SHA in d u stria l hygiene survey v e rifie d exposures to asbestos, benzo(a)pyrene, coal t a r pitch v o la tile s and chrysene." Malignant tumors of various types were reported by the lo cal union to the In te r national Union and/or 0SHA in v e stig a to r. However, inform ation associated w ith these reports seemed sketchy and warranted fu rth e r in v e stig a tio n . IV . HEALTH HAZARD EVALUATION A. Process D escription and Evaluation K entlle Floors In c . 1s a manufacturer of vin yl asbestos and asphalt asbestos flo o r covering. The company employs 300 workers SP217592 SP217S93 Page 3 - Hazard Evaluation and Technical Assistance Report No. 78-73 of wnom approximately 250 are factory workers. The employees work one of two s h ift s (7 :0 0 am - 4:30 pm or 4:30 pm - 2:00 am) nine hours per day, f iv e days per week. The maintenance department works on Saturdays in order to perform routine equipment maintenance and re p a irs. The company performs environmental a i r sampling fo r asbestos, to tal dust, e tc . However, the frequency of monitoring was not ' determined. The areas evaluated were the process room, the recycling process and the ink mixing operation. A ll personnel assigned to the process room or recyclin g operation are assigned separate lockers fo r clean and d irty c lo th e s. A d d itio n a lly , workers are required to wear the following p ro te ctive equipment: c o v e r a lls , re sp ira to r and sa fe ty snoes. Employees are re lie v e d from duty ten minutes before the end of th e ir s h if t In order to shower; however, showers are not mandatory. Workers In the process room or the re cyclin g area are each assigned two re s p ira to rs . At the end of each s h i f t , the d ir t y re sp ira to rs are collected by the supervisor fo r d a ily cleanin g . Two employees disassemDle each re s p ira to r and hand-clean them according to requirements described in the re sp ira to ry guide supplied with the re sp ira to rs. The u n its are a ir- d rie d , assembled with new f i l t e r s , and returned to t h e ir resp ective owners a t the beginning o f th e ir sh ift. 1. Process Room In the process room, located 1n Building 2, chemical weighing and mixing i s accomplished. There are two t i l e Unes (f5 and f7 ) and a m ottling or decorative t i l e Une (6 ) which are very s im ila r o perations. A ll three lin e s are operated by 20 workers during the day s h i f t , whereas the second s h if t (10 workers) operates only one production lin e . The m a terials are normally stored in the warehouse and tran s ported to the process room, v ia fo rk l i f t s , as needed. Inadver tent chemical s p ill s are normally vacuum cleaned. Lines #5. f6 and #7 u t iliz e a hopper car and a conveyor system fo r transporting chemicals from the scales to the ' Banbury m ixer. The pigment operator measures the required q u a n titie s of pigments (from bulk m a te ria ls ) a t a booth which has s lo t ' v e n tila tio n . The pigment 1s placed 1n a p la s t ic bag and dropped ' Into the hopper c a r. The .hopper proceeds to the f i r s t o f two s c a le s , both o f which have canopy exhaust v e n tila t io n , where the re s in sc a le operator places a bag of asbestos onto a horizontal chute, s p lit s 1t in both d ire c tio n s and pushes the bag into the hopper. Two ad ditional chemicals are au to m atically Mention of commercial names or products does not co n stitu te endorsement by NIOSH SP217593 SP3115M e 4 - Hazara Evaluation and Technical Assistance Report No. 79-73 metered and conveyed to the hopper. The hopper car is tra n s ferred to the second scale operator who loads tne hopper with scrap t i l e . I t should be noted that the scale operators switch positions every four hours. The hopper car is then conveyed to the BanDury m ixer where the operator dumps the hopper load into one of two m ixers in le t chute wnich are a lte rn a te ly charged and dumped onto a conveyor b e lt below. In ad dition, the mixer operator trig g e rs a switch which dumps . tne otner chemicals ( p la s t ic iz e r , lim estone, polyvinyl ch lo rid e p e lle t s , scraD t i l e s , and water) into the in le t chute. The m aterials are mixed fo r the prescribed time; afterw hich, the load is released through the discharge chute. The m ixture, when released, is hot (160-300F) due to fr ic t io n a l mixing. The mixture 1s subsequently conveyed to the m ills to be gauged, colored, waxed, polished, cut and packed. The mottle,, once gauged, is crushed and added to the v in y l asbestos t i l e . Building 2 occupies about 4,500 square feet (ft^ ) with an average c e ilin g height of about 25 fe e t . The e n tire v e n tila tio n system is purged through a bag house where the dust 1s co lle c te d bagged and id e n tifie d with a tag in d ica tin g asbestos dust. The exnaust system operates at -8,000 cubic fe e t per minute (c fm ). The make-up a i r u n it operates at 90,000 cfm. This make-up a ir is p rim a rily used to cool tne hot running machines. The pigment sc a le operators' booth has s lo t v e n tila tio n (42 x 1 inch) which operates at about 50 fe e t per minute (fpm ). Each of the hopper scales .nave canopy exhausts which are enclosed on two sides and nave c u rta in s on two sides to Increase exhaust e ffic ie n c y . The system was designed to exhaust a i r away from the worker a t a rate of 150 fpm when the hopper car 1s In place. Botn Banoury machines fo r each of the three lin e s have two adjacent s lo t exhaust ducts a t the cnute entrance and one exhaust duct w ith in the m ixer. The exhaust duct at the chute entrance is designed to operate a t 200-300 cfm per square fo o t of open face a re a . 2. Recycling Process The re cyclin g process, located on the second flo o r above the process room, is operated by two workers, one employee is the u t i l i t y man/Banbury r e lie f man and the other employee monitors the conveyor b e lts which transport scrap t i l e chips to the Banbury machine. The conveyor system o ccasio n ally becomes over loaded with sc ra p , thus requiring the operator to d iv e rt some of the scrap m aterial into 55 gallon drums fo r temporary storage. SP217594 SM17SJ4 Page 5 - Hazard Evaluation and Tecnnical A ssistance Report No. 78-73 As the conveyor supply of scrap t i l e d im inish es, the operator empties the drums of scrap t i l e back onto the conveyor b e lts . A lso, the operator transports drums o f scrao to and from the warehouse. The exhaust v e n tila tio n fo r the recyclin g lin e co nsists o f an open ouct which returns room a ir to the ro o f. 3. Ink Mixing Room One employee spends 15-20 minutes per day in the ink mixing room (300 ft^ ) preparing form ulations. The room contains drums of ink and m ineral s p ir it s . Although the room has no exhaust v e n tila tio n , there is a wall-mounted a i r conditioner wnich the worker uses at h is d isc re tio n . A lso , the worker leaves the large entrance door open whenever he works in the room because o f the strong odors. The Ink form ulation co nsists of mixing inks and mineral s p ir it s to obtain the desired color and consistency which is o p tic a lly compared to tne standard. Once the mixing is complete, the worker leaves t h is room fo r the re s t of the day. B. Evaluation Desion/Hetnods 1. Evironmental/Medical Survey . On June 27, 1978, an in i t i a l envirormental/medical survey was conaucted. A fte r the opening conference, a walk through Inspection was made w ith both management and lab or re p re se n ta tiv e s. The e n tire p la n t was v is it e d so that tne NIOSH rep resentatives would b etter understand the general operation. The s p e c ific departments id e n tifie d as being p o te n tia lly hazardous were the Ink room, process room, m ill room, and the recycling room. 2. Environmental A ir Sampling Personnel and area samples were used to evaluate employee exposure. The personnel samples were attached to the workers' s h irt c o lla r in order to characterize a breathing zone sample. The area samples were 1 .0 fe e t to 3 .0 fe e t from the workers' breathing zone. Each o f the sampling data tab le s include inform ation denoting the types o f . samples c o lle c te d . Carbon Black Carbon b lack dust samples were co lle c te d w ith mine s a fe ty appliance (MSA^Model G b atte ry operated personnel sampling SP217595 annus Page 6 - Health Hazard Evaluation and Technical Assistance Report tlo. 73-73 pumps. A known volume of a ir 1s drawn through a casette containing a tareo 37 m illim e te r (urn) diameter 2 .0 micrometer (urn) pore s iz e po lyvinyl ch lo rid e (PVC) f i l t e r (type FWSB). The pump flow rate s were calib ra te d d a ily and operated at 1.5 lit e r s per minute to c o lle c t 2 four-hour samples. The a n a ly tic a l method c o n sists of weigning the f i l t e r in a clean tared c ru c ib le . The c ru cib le and f i l t e r were placed in a m uffle furnace and the f i l t e r was ashed by gradually ra is in g the temperature to 800C. A fte r asning, the cru cib le s were re-weighed. The loss on ig n itio n represents the weight of the f i l t e r plus the carbon black contained'in the sample. Benzene-Soluble Fractio n and Polynuclear Aromatic Hydrocarbons C o lle ctio n o f these two contaminants is accomplished by using a MSA pump in conjunction w ith a sampling ca sse tte containing a 37-mm diam eter/0.8 urn pore siz e glass fib e r s ilv e r membrane f i l t e r . The sampling tra in (pump and f i l t e r ) is calib rated d a ily and operated at 1.5 1pm fo r about eight hours. Benzene-Soluble Fraction The samples were analyzed by NIOSH Physical and Chemical Method 217 (P&CAM). The p a rtic u la te matter on the f i l t e r s was extracted w ith benzene u lt r a s o n ic a lly . A fte r e x tra c tio n , the benzene so lu tio n was f ilt e r e d and evaporated to 1.0 m i l l i l i t e r (m l). An a liq u o t was evaporated in a tared Teflo n boat; the weight gain i s due to the benzene soluble residue in one-half the sample. The samples were analyzed by reverse-phase high oressure liq u id chromatography. A n a lytica l procedures in vo lve the ap p licatio n of a methanol/water solvent g rad ient. The u lt r a v io le t detector scans the sample at 365 nanometers (nm) and 280 nm sim ultaneously, wnlch aids in compouno id e n t ific a tio n . (P&CAM 206 modified technique) Id e n tific a tio n of s p e c ific peaks in the chromatograms derived from the samples were compared w ith those o f known standard compounds. The lim its of detection lis t e d In Table I I apply to a 1 .0 m ic ro lite r ( u l) in je c tio n from a 1 .0 ml sample. The detection lim it s are d iffe re n t because a l l samples were analyzed using a large in je c tio n volume to increase s e n s it iv it y . The reported lim it of detection may vary between samples due to in je c tin g d iffe re n t sample volumes. SP217596 SF217S9C Page 7 - nazard Evaluation and Technical A ssistance Report No. 73-73 Solvents (M ineral S p ir its and Benzene) A sampling tra in consisting of a Sioin**'vacuum pump and a 150 m illigram activated charcoal tu b e .is used to c o lle c t a known volume of a i r . A ir contaminants are adsorbed to the charcoal grains and la t e r analyzed. The cnarcoal tubes, wnlcn have two se ctio n s, are separately desorbed in 1.0 ml of caroon a is u lfid e containing dodecane as an in te rn a l standard and analyzed by gas chromatography with a flame io n iza tio n detector according to NIOSH method #127 (m odified). Asbestos The samples were collected using a sampling tra in with a three piece c a s s e tte , 37-mri diameter/0.3 urn pore s iz e mixed c e llu lo s e membrane f i l t e r (type AA). The f i l t e r is sampled open face In order to assure even dispersal of fib e rs on the f i l t e r . The pump was c a lib ra te d d a ily and operated at 1.5 1pm fo r a pre determined tim e. The sample was la te r analyzed by NIOSH method P&CAM 239 u t iliz in g phase contrast microscopy. Nuisance Oust A personal samollng tra in with a tared 37-mm d1ameter/5.0 um pore s iz e , cared polyvinyl ch lo rid e f i l t e r (type rWSB) or i t s equivalent was used to c o lle c t nuisance dust. The pump was operated a t 1 .5 1pm fo r the prescribed time or u n til the f i l t e r appeared to be overloading with dust p a rtic u la te . The f i l t e r was subsequently analyzed g ra vim e trica lly according to NIOSH method 29. The weight of the sample was determined by subtracting the tare weignt from the to tal weight. Lead ano Total Chromium These metals were co lle cted by drawing a i r through a 37-mm d1ameter/0.fi um pore s iz e mixed c e llu lo s e ester membrane f i l t e r (typ e DM-800) with an USA model S pump. The f i l t e r analyses consisted o f ashing the f i l t e r s w ith n it r ic acid and p e rch lo ric acid and subsequently analyzing the so lu tio n by atomic absorption spectrophotometry (NIOSH method 173). 3. Medical On June 26, 1978 the physician examined a l l the medical Inform ation which OSHA o ffic e rs had obtained from the Pre sid e n t, URW Local 505. and from K e n tile (Chicago) employees, ex-employees, or th e ir next of kin. SP217597 c. Page 8 - Hazard Evaluation and Technical Assistance Report flo. 73-73 Some death c e r t if ic a t e s were included in the K e n tile f i l e , and th e ir contents were noted. ' On June 27, 1978, the medical records of a ll workers included in the l i s t supplied to IlIOSH, by Local 505 P resident, were examined at the p-lant. There was fre e d iscussio n of the records with the plant pnysician and fu ll- tim e nurse. Further information was obtained from the Union's Local president. The plant employs a fu ll-tim e nurse on the d a y -s h ift, stationed in a well-equipped F ir s t Aid room. A ll asbestos-exposed workers have had annual chest X-rays since 1971, ano pulmonary function te sts fo r the past fiv e ye a rs, performed at a local c lin ic . No cases of asbestosis were on record at the p la n t. A physician from the local c lin ic performs a l l pre-placement p h ysica ls, annual examinations and sees a l l workers who have been absent from work fo r health reasons fo r periods in excess of three days. On a r r iv a l at X e n tile F lo o rs. In c ., the medical o ffic e r asked the I ll in o is representative to le t the workers know that a government doctor was present in tne plant and was a v a ila b le fo r co nsu ltatio n on any work relate d healtn problems. Of the three workers wno sought th is medical ad vice, only one had an occupational disease. He had an ir r i t a n t d erm atitis on h is fa c e , and more markedly, in sid e h is elbows. The medical o f f ic e r gav:- the union rep resentative a supply of " Release o f Medical .nformation to NIOSH" forms which he was requested to d istrib u te to a l l workers who believe that they are suffering from w ork-relateo o ise ase . On completion, tnese forms were to be forwarded to the NIOSH p hysician. To f a c il it a t e t h is m atter, a supply of self-addressed envelopes were sent to Local 505 by the medical in v e stig a to r. On re c e ip t o f fourteen completed forms, authorizing re le a se of medical inform ation to NIOSH, the personal p h ys lcia n (s ) and/or medical f a c i l i t i e s lis te d in these documents were contacted by le t t e r , and a l l relevant medical inform ation was requested of them. A photocopy of the signed m edical-release forms accom panied each req uest. The plant physician sent re le van t medical inform ation on workers, as requested. SP217598 8*317991 Page 9 Hazard Evaluacin and Tecnnical assistance Redon Ho. 73-73 No medical reports were received on four of the workers p articip atin g in th is investigatio n. A reply that there were no records of sucn a p atie n t was received on three of them. The personal pnyslcian of the fourth man was deceased, and the d isp o sitio n of his medical f i l e s was unknown. C. Evaluation C r it e r ia and T o x ic ity Data 1. Environmental There are several c r it e r ia used to evaluate the to xic a ir contaminants of an employee' s work environment: (1) NIDSH C r it e r ia Documents fo r a Recommended Occupational Health Standard, (2 ) Proposed and Recommended Threshold Lim it Values (T L V 's ), as suggested by the American Conference of Governmental In d u stria l H ygienists (ACG1H), 1976, (3 ) the OSHA Standards. The c r it e r i a fo r each contaminant are based upon the cu rre n t sta te of knowledge concerning t o x ic it y of tnese supstances. The c r it e r ia are designed to allow an occupa tional exposure for up to a 10-hour work day, 40-hour work ween as a time-weighted average (TWA) over a normal life t im e without the worker experiencing adverse nealth e ffe c ts a t or below the TWA. There are some airborne contaminants fo r which th is TWA 1s Inadequate; consequently, the substance may be preceded by the le t t e r " C". This le t t e r In d icates a c e ilin g value fo r a sampling in te rva l of 30 minutes or le s s . The c e ilin g value i s used to Id e n tify hazardous substances which are fa s t a c tin g , and 1t should never be exceeded. The c r it e r i a mentioned above have been tabulated, footnoted and compared to the OSHA Standard lis t e d in the Code of Federal Regulations (CFR), (1978) T it le 29. Part 1910, Subpart 2 , Section .1000. The OSHA Standard has been c ite d so that the reader may see which of the standards have been exceeded. However, no discussion of the OSHA Standard, with respect to airborne le v e ls , w ill be presented. SP217599 sn iis Page 10 - Hazard Evaluation and Technical Assistance Report No. 78-73 SUBSTANCE TIME-WEIGHTED AVERAGE 3-HOUR IP-HOUR CEILING VALUE . MINUTES Carbon Blackl 2 Polynuclear Aromatic Hydrocarbons (PNA) Refined Petroleum So lven ts3 (Mineral S p ir it s .o r Naphtha.) Benzene^ Asbestos3 (fib e rs must be longer than 5 .0 micron) c In e rt Nuisance Dust 3 10mg/m Inorganic Lead^ Total Chromium** 3._5mg/m3* and ' 0.10mg/mJ as cyclohexane extractable substances (PNA` s) _ 0.2mg/m3as benzene extractable or O.lmg/m3 cyclohexane extractable fraction in the presence of s p e c ific PNA' s 350mg/m^ 1800mg/m^ 15 ' 3.2mg/m3 60 0.10 fib e rs/cc*12 0.50 fib e rs / c c 15 0.05mg/m3 1 .Oug/m3C a) mg/m3 - Approximate m illigram s of p a rtic u la te per cubic meter of a i r . b) Fibers/cc - Fibers o f p articu late per cubic centimeter of a ir c ) ug/m3 Approximate micrograms o f p a rtic u la te per cubic meter of a i r 1. NIOSH C r ite r ia Oocwnent (1978). The OSHA Standard (1978) Is 3.5mg/m3. 2. NIOSH has no s p e c ific c r it e r ia fo r each PNA. Thus,_PNA` s are evaluated as cyclohexane extractab le substances (.10mg/nr) in the presence of a s p e c ific substance, e .g . coal U r p itc h , carbon b la ck , e tc . The OSHA sun dard and TLV evaluate PNA's as a benzene soluble fra c tio n (0.20rng/m3) f 0r a s p e c ific substance, e .g . coal U r p itch . SP217600 0P217COO Page 11 - Hazara Evaluation ana Technical A ssistance Report rio. 78-73 3. NI OSH C rite ria Document (1977). The OSHA Stanoard (1978) is 400mg/m 4 . HIOSH Recommendation Revised as a part of MIOSH testim oni at OSHA hearing (1977). The OSHA Standard is 32.ma/m3 (1978) TWA with a maximum c e ilin g concentration of lfiOmg/m^ fo r 10 minutes. 5. NIOSH C rite ria Oocument, Revised ed itio n (1977). The OSHA Standard is 2 fib e rs/c c as an 8-hour TWA and 10 fib e rs /c c as a c e ilin g concentration. 6. ACGIH TLV Oocument (1978). The OSHA Standard is 15.0mg/m3. (1978). 7. The OSHA Standard 1s 0.05mg/m3 . (1979) 8. NIOSH C r ite r ia Oocument (1975). The OSHA Standard is l.Oug/m3. (1978) 2. T o x ic ity Data Asbestos A vailab le studies provide conclusive evidence that exoosure to asbestos fib e rs can cause cancer and asb esto sis in man. A sbestosis is a chronic lung disease due to in h a la tio n of asbestos fib e rs and is characterized by d iffu se in t e r s t it ia l f ib r o s is frequently associated w ith thickening of the pleura (f ib r o s is ) and/or pleural c a lc if ic a t io n . The c h a ra c te ris tic X-ray changes are sm all, irre g u la r o p a c itie s in the lower and middle lung f ie ld s . A sbestosis is a progressive disease wnich may develop 1n seven to ten years depending upon degree of exposure and type of asbestos f ib e r . U sually the disease becomes evident 20-40 years a fte r f i r s t exposure, and may progress even a fte r exposure has ceaseo. Bronchogenic carcinoma and mesothelioma occur among workers exposed to asbestos fib e r s . There i s a marked ennancement of the r i s t of bronchogenic carcinoma (lung cancer) in those exposed to asbestos who also smoke C ig are tte s. Mesothelioma is a cancer of the lin in g of the lungs (p le u ra) or the abdominal c a v ity (peritoneum). Other types of cancer associated w ith asbestos exposure are those o f the larynx and g a stro -in te stin a l t r a c t . A ll these cancers have a lengthy induction period, i . e . the time which elapses between the onset o f exposure and the development of the carcinoma, usu ally in excess of twenty yea rs. There are data which show that the lower the exposure, the lower the r is k o f developing asb esto sis and cancer. NIOSH has found no evidence fo r a threshold, or fo r a "safe" le vel of asbestos exposure'with respect to th development of cancer. SP217601 c* Page 12 - Hazara Evaluation and Technical A ssistance Report No. ?3-T3 D. Evaluation R e su lts ana Discussion 1. Environmental Pour caroon black samples (personal and area) were collected at the pigment scale operations booth. A lso , a bulk sample of the pigment was analyzed. I t was learned that the company d ilu te s the carbon black w ith limestone in order to oDtain the desired pigment concentration. An a n alysis of the carbon black revealed i t to be 58 percent pure. None of the a ir samples indicateo any caroon black accumulation on the f i l t e r s . Ten PNA samples (personal and area) were co llected from several p o sitio n s along the three lin e s . Another agency performed a survey in which several PNA's were id e n tifie d ; however, the source of contamination could not be determined. I t was f i r s t suspected that carbon black might have been the source o f contamination; however, th is thought was discounted a f t e r viewing the operation in d e t a il. I t was attempted to sample at d iffe re n t p o sitions along the lin e to a sce rta in i f one s p e c ific area re fle c te d PNA exposure. A laborato ry an a ly sis indicated that the sample cnromatograms did not contain any peaks which would be interpreted as polynuclear aromatic hydrocarbon compounds. Eight personal and area samples were co lle cted fo r mineral s p ir it s and benzene. None of these samples exceeded the NIOSH recommended standard. A bulk sample of the mineral s p ir it s was used to id e n tify the naphtha peaks. T h irty asbestos samples (personal) were collected from three lin e s as 8-hour TWA samples and as 15 minute samples. Seven of the TWA samples exceeded the NIOSH recommended c r it e r ia o f 0.10 fib e rs / c c . None of tne samples exceeded the 15 minute sample of 0.50 fib e rs / c c . T h irty-n in e personal and area samples were collected fo r to ta l nuisance dust exposure. Hone of the samples exceeded the OSHA standard or the AC6IH threshold lim it value of I5.0mg/m3 and lO.Omg/m3 re s p e c tiv e ly . Four samples (personal and area) were collected fo r the chrome ye llo w pigment. None o f the samples exceeded the OSHA lead standard (0.05 mg/m3) o r NIOSH recommended standard fo r chromium (1 .0 ug/m3) . SP217602 r> Page 13 - Hazard Evaluation and Technical Assistance Report No. 73-73 The health hazard survey attempted to evaluate a l l the p o te n tia lly toxic chemicals on the inventory l i s t , but atte n tio n was p rim arily focused on the s p e c ific chemicals cite d on the health hazard evaluation reo'uest. However, since a l l o f these chemicals are not used on a d a lly basis some could not be evaluated. I t was also determined that dyes are not used by the company, and alpha methyl styrene is no longer used consequently, s p e c ific chemicals were evaluated based on the r e la tiv e t o x ic it y , quantity and frequency of use. A ll of the employees working along the process lin e were observed to wear th e ir re sp ira to rs during th is e valuatio n. Host o f the employees only fastened one o f the two stra p s, and in se ve ra l cases, the employees placed a paper towel around t h e ir chin between the skin and the re s p ira to r to absorb m oisture. The employees working In the recyclin g area do not wear a re s p ira to r except when f i l l i n g drums w ith excess scrap m a te ria l. Neither of the workers wears safe ty g la s s e s . As chips are transferred from one conveyor lin e to another, the chips become airborne momentarily. Several scrap chips h it the NIOSH Investig ato rs face and glasses during the day's su rve y. I t was also observed that the guards fo r the conveyor system are not the same s iz e . The conveyor lin e w ith tne sm aller guard r a ils allowed considerably more sp illag e o f scrap m aterial. I t was observed that as the automatic conveyor system f i l l e d the hopper c a r, the cnemicals created a s lig h t amount of dust some o f which escaped the canopy exhaust system. A ll of the chemicals are stored in the warehouse. Some of the cnemicals are e ith e r animal carcinogens or suspected human carcinogens. These chemicals are not s p e c ific a lly Id e n tifie d as such or stored away from other less to x ic chem icals. There was a 2-3 inch gap between the c e llin g and an I-beam stru c tu re on the locker room, thereby allowing dust to contaminate the area. This problem was corrected by the company p rio r to the follow-up survey. The exhaust ducting along lin e 6 in the process room (Bldg 2) a t the A calendar was dixconnected. Medical . Excess cancers of the re sp ira to ry and g a s tro -ln te s tln a l tra c t have been documented in workers with s ig n ific a n t asbestos SP217603 8P217S03 U Page 14 - Hazard Evaluation and Technical Assistance Report rio. '8-73 exposure but of the three authenticated cases of cancer revealed in th is in vestig atio n (two of the larynx and one of the colon) only one Should be regarded as possibly being of occupational o rig in . This 1s a case o f laryngeal cancer in a worxer wno is reported to be a lig h t d rin k e r, non-smoker. Smoking and drinking have been implicated in the genesis of laryngeal cancer. This cancer has a lengthy late n t period 1 .e ., the amount of time elapsing between exposure to an occupational carcinogen(s) and the development of a tumor. One cannot be sure. In th is case , wnat the causative ag ent(s) could be. P rio r to h is f i r s t employment at th is p la n t, the man worked in an Industry associated with the development of re s p ira to ry -tra c t cancers. The other two workers were not process operators; th erefo re, they . would have com paratively lig h t exposure to asbestos, and there is no record o f previous occupational exposure to Other known, or suspected, carcinogens. The diagnosis of asbestosls made on one worker by a physician at a lo ca l ho spital was not confirmed by lung-disease experts at NIOSH' s Appalachian laboratory of Occupational Safety and Health, and tne U n iv e rsity of C in c in n a ti, a f t e r evaluation of the fin d in g s of a l l medical in ve stig atio n s undertaken - - on th is man. The diagnoses recorded on the remaining seven workers included d e rm a titis, chronic b ro n cn itls, diabetes and heart disease. With the possible exception of the case o f d e rm a titis, these diseases are not considered to be caused by occupational exposures a t th is plant. D. Reconmendatlons 1. The company should review t h e ir m aterial inventory 11st to determine which chemicals are p o te n tia lly to x ic . The to xic chemicals snould be monitored p e rio d ic a lly . 2. Employees should be instructed to fa ste n a l l strap s on th e ir re s p ira to rs . A lso , paper towels should not be placed between the skin and re s p ira to r because th is w ill reduce tne re s p ira to r's e ffe c tiv e n e ss. 3. . Employees working 1n the re cyclin g area should wear re s p ira to rs when f i l l i n g tne drums. A ll employees working on o r near the recycling conveyor b e lts should wear sa fe ty glasses w ith side shields to prevent eye in ju ry . The canopy exhaust system fo r each o f the three process lin e s should be examined to a sce rta in whether the side SP217604 S721HM r* Page 15 - Hazara Evaluation and Technical Assistance Reoort No. 78-73 cu rta in s are e ffe c tiv e ly capturing me dust generated w hile f i l l ing the hopper. 5. Chemicals wnich are carcinogens (e .g . D ia n isid in e Orange) or suspect carcinogens fo r humans and .mimis should be id e n tifie d and stored away from non-carcinogens. 6. The v e n tila tio n exhaust system should be inspected p e rio d i c a lly to assure proper operation. 7. For the men p o te n tia lly exposed t.o asbestos, a ll work clotnes should be co llected in the plant snower/locker room at the end of each day, so that they can be placed in p la s tic bags fo r proper cleaning. These work clothes must not be taken home to be washed because th is could expose others at home to asbestos. AUTHORSHIP AND ACKNOWLEDGEMENTS Report Prepared By: Originating O ffice: Pierre L . 3elanger Ind ustrial Hygienist MIOSH - Region IX San F ra n cisco , C a lifo rn ia Elva Elesh , M.D. Medical Section Hazard Evaluation & Technical Assistance Branch C in c in n a ti, Ohio . Jerome P. Flesch Acting Chief Hazard Evaluation & Technical Assistance Branch C in c in n a ti, Ohio ACKNOWLEDGEMENTS Environmental Evaluation Robert Rosensteel Rick Taft B ill OlHnger Gary Verst In d u stria l Hygiene Section Hazard Evaluation & Technical A ssistan ce Branch A n alytical Laboratory Services Measurement Support Branch C in c in n a ti, Ohio Report Typed By: Dorothy A. Chandler SP217605 SM17SCS Page 16 - Hazard Evaluation and Technical assistance Report Ho. 73-73 REFERENCES 1. C r it e r ia fo r a Reccitmended Standard.. .Occupational Exposure to Caroon Black, (1978) HEW Publication No. 73-204 .2 C r it e r ia fo r a Recommended Standard.. .Occupational Exposure to Refined Petroleum Solvents. 1977) HEW P ub licatio n Ho. 77-1 92 3. Revised Recownended Asbestos Standard. (1976) HEW Pub lication No. 77-169 4. C rite ria fo r a Recoirmended Standard. . .Occupational Exposure to Inorganic Lead, Revised C r it e r ia (1978) HEW Pub lication No. 78-158 5. C rite ria fo r a Recownended Standard.. .Occupational Exposure to Hexavalent Chromium, (1976) HEW P ub lIcatlo n No. 76-129 6. HIOSH Manual of Sampling Data Sheets. OHEW (NIOSH) P ub licatio n No. 77-159 7. HIOSH Manual of A n a ly tica l Methods. HEW Pub lication Ho. (NIOSH) 77-157-4 8. Documentation o f Threshold L im it V alues. ACG1H, 3rd ED ., C in c in n a ti, Ohio, 1971 9 P a tty , F .A . In d u s tria l Hygiene and Toxicology, Second Revised Ed. , V ol. I I . In te rscie n ce P u o lish e rs, New York, 1976 10. Special Occupational Hazard Review and Control Reconmendations Chrysene. PHEW (NIOSH) P ub licatio n No. 78-163 11. Dement, J and Zumwalde R. In d u s tria l Hygiene Study of the Gouverneur Talc Company Numoer One Mine and H i l l . Volume I . Fin al Report. NIOSH. June 8 . 1977 12. Gibson. E . S . , M artin , R. H. , and Lockinoton, J . N . , Luna Cancer M o rtality in a Steel Foundry, Can. J . Occup. Hed. 1977 19/12 (807-812) 13. Peto J . , Doll R ., et a l . A M o rta lity Study Among Workers in an English Asbestos Fa cto ry, DHSS Cancer Epidem iol. C lin . T r ia ls U n it. U nlv. Oxford B r i t . J . Ind. Med. 1977 34/3 SP217606 P21706 Itu B b er 1216 1206 640 704 Type o f S * P le fe r io m te l P e rio n n e t W ork A re W ork U r e i MBU I Siiniuiry of A ir SiiiftHnj ior Carbon IM f l Kenllte rInarft ChlreoA, MUnoll SeplMiltr 21, 19/ti Jo b C )e t< U lc tto n o r io c e ito n _ . .S fM ' l i M . . . .......................... P c r l I V o W c ( llic r i) U n e /7 Pl6jm LM t S e i l e O p e r e t o r U n e 9) P la n e n t S c a le O jie n t o r U n e 97 P ig m e n t S e e l O p e r e t o r (8 1 ) 3 U n e 17 P ) < ja c n t S e e l e U p e r e t n r ( P . f - t 001 0 1716 1 2 4 0-1 6 6 ; 0 1 1 )0 -1 7 1 7 I7 I2 -I6 1 7 W 2 279 KO 3 JI tiih o r i M a c L C w ie e n ii t ld M ( ( '* < ) N .t .* N |l. it .ii. N .f/ . bo/ * 3 I |iprOhl*te lU ig ru ^ of itrhon U i U per coltlc nelcr of lr . 2, H.U, 3. B f- - Hone Dcteclrd of etecllon ti U . S iwj}, - ftreiiHIng zone unp )e. H10511 f>o'(n>wiulrl tnterW (|9/||| 3 .W " SP217607 9P3V7607 Will (1 Sufliury of Air Stapling for f'nlynttiletr Aronutlc (WA) UydntcOilmtS fettlHe flours Chic)* lllln n li Sofitmbcr 20 - 71, 19Mt . . . rurir.|ttiitAipw ....... Simple ly|>* Jolt C ls is If it H lo n Suouo{ |ny IfoiiM O UiM.rnif '( Due Husiicr Sjwple (r.(.o e e ilo n .......... # ................ PcrM uT yoliiwU 1I f !> ) p m r s Antlji iv cito rintnxMljiivMi* Pyrene I'hj yunc 4/20 PHA-1 A3 Line I f Pigaenl U lte (0 .Z .J* 0/4C-1549 729 * n.tii 0.70 6 O lili 11.7)1 * 0 10 11 7/ 1/20 fHA-2 P* Line |7 Hlner Apet ilo r OIIU4-I4SO 604 (1 04 < 0.70 * O.lirt 0 7 * (MO 0 (HI 0/21 Mia-J A line I f HUer 0|>u'ftior(fl.M iinno-isiA 74)2 x 0.7O s 1.00 X (1.4(1 t.Od 0.50 1.7 0/21 PHA-4 P lin e I f HUer 0i**rtor . HOlifl- 1S40 61'/ < 0.05 * 0.75 * 0 10 < 0 75 0.11 (1. 1/ 0/20 A-6 A tine 15 PI'jutcnl l l i . U (O f . ) lldlO- 1558 601 < 0.<H * 0.70 4 0.0 0.70 * u Ml O ./H 0/70 MIA-1 P lin e 15 Hl<*r Operolitr 1242-1601 20/ o tn < 0 .70 0.0H < 0 70 . 0 1 0 u 0/21 PNA-S . A lin e 15 M1er 0|<tr*ior IMH6-1550 6H4 V 0. IO : 0.50 < 0.70 - 0 so 0 75 U .00 0/21 PHA-9 P lin e IS Mixer (Jptretor 0816-1540 Ml 6 1) 10 . 0 SO < 0.711 6 0. 50 . 0.75 0 u, 0/20 MIA-II P Line 1C Hi l i D |* i* lc r 0/15 1560 6/6 II. IU 0.50 * o.;'o 0.511 11.75 1) 5|, 0/21 MIA-12 P Line 15 Mixer fti'iireior 0/41-1655 604 < (1.04 * 0.70 < 0 oh - 0.7 ft. 10 0.7ft 1. p lA n n lt - aierngrta of p o rllc u lile per staple n1y/eil. 2. /J 3. A 4. 6.2. ap fro ilM le a U U g r * of p irilcu to te per cubic tier of H i . - Arc* staple. - Breathing tone staple. 5. P - Personnel staple. 6. I u i t t or Detection 1he reported H o lt 1 election v t r it J between staples due 1 different Injection volutes. H a i t i of Oetectinn * i f n i o ( ) pyrene Anthrntenv Pitene I ttreiir Pyrene I hrystfie Brnrene Soluble* l| $/iample 7t'(MStaple ? $r>q/ltat SP217608 SP21750 I u ii 9/20 9/20 9/20 9/20 9/2) 9/21 9/21 9/2) Huai* r 1 2 2 4 6 7 8 10 Type of S w le P* P A* A r p A A Jolt C le ts lf Ir.allon fit l (il!3 S ....... 1tit Mixer In i Mixer Oesl Tup On lop of Berrai In i Miner Ini HI ter On Tup of Berrei Oetk Tup Muir in SinvMfy of Air Mutile* Collected During Ini Mixing Otwrellon Kent I le flours Chicago, I llin o is Se|>tet*r 2 0 - 2 1 . 19711 Situiti In r H, | otJ Vo nitrii It e r i] 12:97-14:09 0.92 11:98-14:09 0.90 14:00-14:IQ 0.11 13:99-14:08 0 Iti 12:98-1:09 0.49 12:98-1.09 0.81 12:98-1:10 0.18 12:98-1:11 11.0 Concent rei luti | j/ y H ln re 'sM rl t i ' ~Uruieiie 87.1 N I .3 90.0 H. II. 94.6 H.n. 69.8 - li ii. 166.6 N.n 94.2 HO. 19.9 HO. 82.) A. IS 1. pg/p3 Approxlpite pllllg rem t of pertlcu lele per cubie iwter of Ir . 2. p - Personnel seppie. 3. N.D. - Itane delected. 1, A - Aree seppie. ' l (pits of ftoledlon; H tn enl S p ir ili 0 ttlkij Benxene O.BAIpij NIOSII fVAIUA1IOM L 'A lllA M 1. Htnerelt S p irits (ISraln. Celling to n e.) - letHtsi|fa3 2. le nien t . \ 7myt*? SP217609 spm cos 1 Eli 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/21 9/21 9/21 9/21 9/21 9/21 9/21 9/21 9/21 9/21 H flitr 41* 2 i 2 s 6 2fi 9 10 11 14* 15* It* 21* 22* 23* Jot c i m lf Iciilon or tocallon _ lin e 16 foheslos Weigher lin e 16 Resin Scale Operator l i n t 16 N iter Open lor 1 Ine >2 Refill S e ll Opertfor 1 Ine 12 Scrtp l i l t Isid er l i n t 12 In Scili- Operator L in t 12 Scrip l i l t Istrter Line 12 S trip t i l t loirier lin e 17 Relln Scale Operator lin e 17 Resin Scale Operator lin e 12 Scrip T ile ladder lin e 17 Mpoent Scale Operator lin e 17 Mixer Operator lin e 17 Resin Scale Operator lin e 1) Scrip I I I * Inidtr 1Ine I t Niter Operimr lin e IS Scrap t ile loader 1 Ine IS In S cile Opcrilor lin e IS Scrip l i l t loider Mint iv Suuuiary of Pci`ioitMt'1 A ir Samples Collected for Asbestos Kenlilu floors Chicago, Illin o is SH.lhrf^r 2U-2I, 19fII Per ind Samp] Inq V n liiae()l|m ] ' OHSOftOd 072S ISIS 1)20-11)5 022S-I509 - 0232-1CHS 1642-1052 10)-10 1510-1529 1523-1542 0)40-1500 0)51-155) 0010-1552 00(10-1540 1011-1025 1014-1029 I f t l l -1045 0950-1018 0952-1014 1505-1520 22.5 690. 27.5 2)5. 112. 15 (1 22.0 19.5 20 5 502. 5)5. 6)7. son. 22.5 22.5 22.5 30.0 25.5 22.5 f tin t enIt a liu iijj iltei (/ ( hV * fl.tkf no. * (M l D .ll 0.51 H 11. II 22 n 19 0 79 n i) 0.0/ n 05 n ii NNOil.. II.0 * N II * NO 1. flbers/cc - fib e rs of asbestos per cubic ce nllae tcr of elr. 2. N.D. * Hone detected (tlm lt of U elettlon Is 4bDO filters per f i l l e r ) - Approximately IS minute'sample HI05U C rite ria : 1. R*llr tia weighted averatje 0.1 flb crs/ o r 2, |S*mimite eel Mng toncenlral lon-fl.S f11rs/;c SP217610 SP31710 I D ill 9/70 9/70 9/70 9/71 9/71 9/71 9/71 9/71 9/71 9/71 9/71 Semple HimdWr ?( 75 76 77* 7/1* 79 30* 11 3) 14 IS* Job C le sslllc e tlo n or lo cation________ lin e IS Des In Seile Operator lin e IS Screp ( I le I aider I Ine IS U l l l l l r Hen lin e IS Screp I Ile tolder I Ine IS Resin Seele Operetur lin e IS Miner Opers i or lin e IS Miner Opernlo r lin e IS U l l l l l r Men lin e IS Scrip l l i e loader lin e IS Resin ic n lr Open lor lin e IS Scrip ( lie loeder 7ABIT IV (continued) SiMiury uf Periniiniil A ir Simples Colleccd fa r Ailieslus Ventile IInors Chfrija, Illin o is September 20-21, I I I ferlocj Semitl loo Volm w lllleil) 151-157? 0 B IM I(O 6 1104-1600 1011-1070 1017-1041 0 S I6 -IS 4 I 10)7-1054 00)0-1604 0751-1*04 0/4S-160? ID S*-III 71 II 6)0 7I t 77.S 74.0 61). 75.S 61 i 6)5 607. 74.0 IV) tuhi-riilrii ||i*ri/ir) N.0. *4 OOll 0 1)7 H (I. 4 ft 19 * 0 01 H O. 4 0 05 0 05 0 OH <i n * 4 1. flbers/cc 2. N.D. Tite rs of asbestos per cubic centimeter of e lr . None detected (llm tl ol detection Is (100 fibers per f i l t e r ) . Appronlmetely IS minute simple. NlflStl CRIIIftlA: 1. 8-hr lime uelijliled eyereye II. I flb i-is/ii. I. IS-m lnule c e llin o concenlr.l ton - 0.5 flbt-rs/ic SP217611 Hate 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 9/20 Smi|i I c Humber (2919 12900 071) 0)19 0609 r 2/S2 01270 0/10 0109 (2)59 01221 (2914 (21/0 01277 01210 0)10 0)10 nios 0M7 r2904 1715) 0)211 lype Sig le p2 f P 9 A A A r P r P 9 A A A r f lABIt 9 Sutmry of A ir S iiv iIn g (or I0IAI (MISI ' (entile rietiM Chlcigo, l l ll M lt Job ClaSStfIcotlott or lo ci Iloti September 20-21, li/ P!gd Sai? Ing .V p Itw e lU te rtl lin e I I Oeiln S cile Lino 17 S trip (H e tender litte f i Pigment Scote 0per*|or 1Ine I I M ite n i Seele Operililin e 1 1 Moment S c ile Operi!or lin e 1) Mgmenl lelile 0 .2 .)* t f lit ( I Moment lib le 1 .1 .) line 1) ritpienl tib ie (9 .2 .) lin e l Mgmenl tib ie (9 .2 .) lin e l lit i 1t i r Min t tue f i M)*r Operator lin e IS Pei In S cile Openlor (In e (S Scrip t l le loitler lin e #5 Nginenl S e ilt Operator 1Ine IS M ite n i S c ile Opentor Ilo * 1$ Pigment Scale Operator lin e IS Mgmenl tib ie (9.2.1 lin o fS Pigment labte ( B . l . l lin e IS Plgaent labte ( B .f ,j lin e l i Mgeettl tib ie IB I . ) lin e 15 U t ilit y Hin lin e l i HUer Optriinr 0/751609 711 0717-160$ 657 Oli 1-160? 675 0)11-1776 414 l i n i -160? 261 1210-1649 29) 0796-1599 )79 0)46-1252 169 1259-1549 252 0001-1559 65) 0916-1550 661 0)4)1612 6)6 0000-1606 $16 0R06-1555 169 0006-125) 169 1251 1555 270 1256-1659 209 0919-1250 4115 06181558 31) 0010-1659 3)1 09)5-1600 (21 1242-1601 29) Cgi4n|fat 0 77 , 0 60 4.53 2 )1 9 2? 3 .0 ) 0 a 12/ 1.51 3.09 0 26 U. 76 0 90 0 95 . 0.57 1.07 UM 0 )2 1.50 1 41 1.21 1.01 1. *#/J . Appratitale mtHtprams of contamtnaftl per cubie t e r of Ir . 2. 7 1. A 1. 9.2. Fertonnel limole. - Arei lis p le trc ilh ln g iene simple. Attili Tl-V 1. T u lli n o lan i.r ituai |II.O + f , ( m SP217612 spjntu I One 9/20 t in 9/20 9/21 9/U 9/21 , 9/21 9/21 9/21 1/21 9/21 9/21 9/21 9/21 1/21 9/21 9/20 Staple Hunlier 0(51 0(11 0/06 22901 22901 r?90i rim 276S 22900 22891 22161 22891 221S( m ;i 22899 22165 22092 lype Staple ft 9 9 9 f 2 9 9 9 9 9 P P 9 i3 1AMIt V {tuiilItmcMl) Sunury of A lt Singling for I0TAL OUST Kent lie floors CMciqo, Illin o is Mi CMss 1fIcatfnn or lecaMofl_____ __ Siplnii.i-r :0 ?1, 19M1 m io j Syeyltog Voluteti Ite rs ) lift f6 fiestii S tile Ojieritor a m - im s HA. 1 Inc 16 flyn'it Scele Operuor o u o -is is 691. 1Ine 16 Hi ter Open tor 1ine 11 Rciln S n le Opertlor ' 0950-ISSO 1. 07(8 I60U 660. lin e 11 Scrip l i l t lotder 0151*1551 652. tine 11 Plijarnt Sc tie Opentor 00)0-ISSI 691. j Ine I f H iier Operator 0800-1518 105. lin e I I U t ilit y Hun 0811-ISSO 610. lin e lb Resin Si lie Operator lin e 16 Scrip t i le Operator lin e 16 Pt'jnonl Scale Operator 0111-1550 105. 0U6.)S$0 692. o n ttssc 609 1Ine IS Resin S u i t Opentnr OKS 1601 t il. 1Ine IS Srnp ( l i e l<il<lr 0815-160( 5(1. 1Ine IS V l l l l l r Hen 0810-1604 615. lin e fb Plgfwnt Scale Operator (1818-1600 682 1Ine IS H iier 0 |.e n ln r 0816-ISSO 690 Recycling Ope alor 08(5-15(5 610 {S filic i 1.69 . 2.61 1 III o.;m 0.09 1 29 2 61 I t* 1.25 too 5.1*6 0.68 0.1 1.41 0/2 5.15 1 11 1. 9/3 Approilaite a llllg rtie t 1 <onUafin.nl per cubic n rlc r of t i r . l. t 1. Pirionncl tapie. - Orel tu p le . Affli II HVt 1. ii.ta l mil .ni In11 ht.n i*.'* SP217613 SP21711 W ie tonfar 1202 0 4M 4 Typ of Personnel Personnel 4m Am m \ vi Sumner? of Air Saatpllny for lead and lot al rent H r floors Chicago, U lln o lt Chromium Septentri*r ?1, 19/B Job C lt iilf lc t lI o n o r_ lg c U 2fl_______ lin e #5 Piyaenl Seele (Iperalor Line 1$ Ngmenl Scale Operai Un IS rig w iil ttb ic ( U . ) 1 Un IS figurili K b it ( I. I .) Sanpljug Period ' Vojuue{|.lt e f f ) OUt'j-1236 M9 1216- iste 306 . OOIB-WM 182 1216 UDO 306 pmi o lra i ton ' la<f * ftal Chrale H.D* HP. 0.01 N il. N.U. N.O. 0.02 Ml 1. g/3 2. H.D. ]. .1. ApproitaaU m ig r a n s of conU oinint per cubic M l i r of itr. None detected ( l l o i t of Oetectfon for U d and ( o l i i chrualun re 3.0 od S. n lc ro g ria per tempi respectively) Ireathtng ione saaple. HI05M RfCdVtMlitO CMlTfPi: 1. lead ( U N f O . I n g / n 1 ?. l o l l l thronltae ( I p d ) -1.11 t.j/m SP217614