This process consists of distillation of the crude material at reduced pressures (about 50 mm Hg) and elevated temperatures (150C-300C) in the presence of a few tenths of 1% of lime or sodium hydroxide, Papageorgc^, Hubbard^, and could lead to hydroxylation and the subsequent loss of MCI could lead to a dibenzofuran derivative.

Sample 1,, 2 3 4 5 6 7 8 9 10 Operator Duty Utility technician Utility technician Lead technician Lead technician Pearl technician Roving technician Utility technician Pearl dryer technician Paste Bagger Mixing technician mg vinyl chloride ^pm vinyl 12. 1 23. 5 12. 8 0.6 6. 7 4. 1 2. 5 0. 6 0. 5 0.4 22.4 46. 2 26. 8 1. 1 11.9 7. 0 4. 2 0. 9 0. 8 0. 6 *Please note that the ppm value reported is calculated on the basis of the volume of air sampled for a specific sampling period and it is not a TWA value for 8 hours.

Grover Wrenn of OSHA reviewed the events leading to the final OSHA standard for vinyl chloride exposure of employees?

Montagna-7/18/78 UCC 100337 C&P OCCUPATIONAL HEALTH TEAM LISTING OP POTENTIAL CARCINOGENS * JULY d. 1978 2-Ac etylaminofluorene Acrylonitrile (a) (b) U-Aminodiphenyl Asbestos (a) (b) Benzene (a) (b) Benzidine Benzidine-Derived Dyes 3is-2-chloroethyl ether (Dichloroethyl Ether: CHLOREX) (a ) 3is-2-chloroethyl-2naphthylamine Bis-chloromethyl ether Carbon tetrachloride (a) Chloroform (a) Chloroprene Chromates of Lead & Zinc Chromium-6 Carcinogenic Compounds (including bis-Triphenyl Silyl Chromate) 3,3* -Dichlorobenzidine (and salts) Diethyl sulfate (a) Diisopropyl sulfate (b) Dimethyl sulfate Ethylene Thiourea 2-Nitropropane 4-Dimethylaminoazobenzene Nitrosoamines (b) 1,4-Dioxane (a) Epichlorohydrin (a) Epoxy Resin ERL 2774 (a) (Dlglycidyl Ether of Bisphenol A) Epoxy Resin ERL 4205 (a) (Bis (2,3-Epoxycyclopentyl) Ether) Epoxy Resin ERL 4206 (Vinylcyclohexene dioxide) (a) Epoxy Resin ERL 4234 3--(3',4' - Epoxycyclohexyl) 8,9-epoxy-2,4-dioxaspiro (55-unaecane) (a) N-Nitrosodimethylamine (b) Perchlorcethylene (a) (Tetrachloroethylene) Polychlorinated Biphenols (b) Polycyclic Aromatic Hydrocarbons (a) (b) (Fuel Oil Residues; Quench Oil, pitches; tars, Dripolenes, A, B, and C, Resin B Condensates) B-Propiolactone Toluene-2,4-diamine (a) Ethylene dibrcmide Trichloroethylene (a) Ethylene dichloride (a) Vinyl Chloride (a) Ethyleneimine (Aziridine) (b) Methyl chloromethyl ether a-Naphthylanine (b) g-Naphthylamine Neopentyl glycdl diacrylate (a) Nickel, Inorganic (a) 4-Nitrodiphenyl UCC 100338 (a) C&P Product, Raw Material, or Process Intermediates (b) Pos: ible Contaminant in C&P products cr operations V.

The Lead Operator or Lead Technician will notify you of concentrations above the permissible limits of 1 ppm in your area either by twoway radio or the paging system. 45.

Comments The information summarized above leads to the conclusion that the case of pneumoconiosis reported by Dr.

In asbestosis, fibrosis or scarring of the lungs develops rapidly, is not halted with the cessation of exposure to asbestos and may ultimately lead to death.

The DEIS (page 63) mentions several possible areas of improvement which would lead to lower exposure levels.

Leading off was a very complete slide presentation, including some excellent photography of an explosion and fire at the Primex 80 MM pounds per year PVC Plant in Pueblo, Mexico.

Rickies, and Environmental Protection Administrator Jerome Kretchmer discuss the new spray orders at Gty HalL NYC Leads USA-Sets Rules For Spray (Continued from J it page) the World Trade Center engineers and their general contractor, Tisbman Construction Company.

haring the Kli'hea There la a "brick wall of Indifference" to ward ocean pollution at meetings leading to the coming United Nationa-sponaored Law of the Sea Conference, aaya John Huaeey. an ex pert on the Senate Commerce Committee staff.

Hart also cited new research data "which would lead one to believe that the human health hazard associated with PCBs has been substantially underestimated."

Lead.

Kehoe: A few m onths ag o we le a r n e d t h a t th e D iv is io n o f C o lo rs a n d C o s m e tic s o f t h e FDA w as c o n s i d e r i n g t h e s p o n s o r s h i p of an o f f ic ia l re se a rc h p ro je c t to determ ine independently th e p o ssib le ab so rp tio n of lead through th e use of lead a c e ta te h a i r c o lo r in g .

It appears most likely at this point, that the VC Panel will be asked to continue their support although the above leads will be followed-up.