Document ymzGgxxZ8QRrokxozmObekJdd
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,' V LABORATORY DEPARTMENT MARK W. WOOD
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TECHNICAL REPORT APRIL 9, 1975
CONTINUING PROGRAM OF MONITORING ATMOSPHERIC CONTAMINANTS WITHIN THE LAKE CHARLES' PLANT LD-1121H
ABSTRACT
The tables composing this report are continuations of occupational environment surveys started early in 1969 and contain data from various plant areas from July 1974 to April 1975.
INTRODUCTION
The periodic investigation of employees' occupational environments initiated in 1969 is described in detail in LD-1121. This report is an addendum and . contains tabulated data obtained from July 1974 through April 1975*
DISCUSSION
Testing in some areas has been deleted where previously compiled data does not warrant further investigation.
A considerable amount of data is being reported more frequently directly to supervisory personnel responsible for the respective areas. This work is also deleted.
Direct reporting of results on a frequent basis is a more effective means of communicating information to those responsible for employees' exposure levels. Therefore, this report is the last addendum to LD-1121. As of April 1, 1975) all measured exposures to airborne contaminants will be reported as they are determined to appropriate management.
Testing frequency guidelines for chemical agents in each area have been established and a standard reporting form has been prepared for use by the entire Chemical Division.
Author:
MWW:rw
Approved: C. P. LeBlanc
Date
Approved:
Q.
H. J0 Hoenes, Jr.f{J
*/-J/-7S Date
(\ (
% LD-1121H/3
X
Threshold Ljrnit Valuer of Airborne Contaminants '(Exposure Possible within Lake Charles' Plant)
.Federal Register, Volume, 39* No. 123
Contaminant
T.L.V. Concentration
Ammonia Carbon Monoxide Cadmium (Dust) Chlorine Chromium Coal Tar Pitch Volatiles (Benzene Soluble) Copper (Fume) Copper (Dust) Hydrogen Sulfide Lead (inorganic) Mercury* Sodium Hydroxide
5 ppm 50 ppm
0.2 mg/M3
1 ppm 1 mg/M3 0.2 mg/M3 0.1 mg/M3 1 mg/M3 10 ppm 0.15 mg/M3 0.1 mg/M3
2 rag/M3
*American Conferences of Governmental Industrial Hygienists (ACGUl) Standard for mercury is 0.05 mg/M3.
Mineral Dusts Nuisance Dust
Respirable Fraction Asbestos
Exposure
8 Hours 15 Minutes Ceiling
15 mg/M3 5 mg/M3
Standards based on length of exposure and type of protection worn.
Fibers > 5 pm/ml No Protection Approved Resrarators
5 25 10 50
| BB OOOOItH
rea
Monitored Personnel
ereury Cell Circuit
Area - Last End, Center
OCCUPATIONAL ENVTRPIGMENT AIR MONITORING
Date-Time 2-05-75 A.f'T.
Contaminant Concentration Conditions
:hlor:.ne
< o.i
ppm 4 Hours
Area - Center
2-25-75 A.n.
i hlorine
Area - W~st End, "enter
Ditto
Chlorine
Area - H& Cell Renair Auxiliary Operator-David
Ditto
: hlorine
5-27-75 (Day Shift) hydrogen Sulfide
Brine Operator-
Johnson
Ditto
ITydrogen Sulfide
Brine Operator-
hydrogen
Ilehert
if-r-75 (Dry Shift) Sulfide
0.2 < 0.1
ppm 4 Hours npm 4 Hours
< 0.1 < 0.01
nrm 4 Hours ppm 8 Hours
< 0.01
npm 0 Hours
< 0.01
npm 8 Hours
Method
Impinger Sampler and o-Toliaine Colorimetric
Ditto
. Ditto
^
Ditto Metronics H2S Badge
Ditto
Ditto
BB 00Q 01J5
t-- I Ii
t
i i *-- i
Liquefaction Operator (Gaskin)
2-TT-75
Brine Treatment Ditto Operator (Winstead)
Ammonia Ammonia
< 5 ppm 2 Hours < 5 ppm 2 Hours
MSA Monitai- Sampler
Ditto
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CD \
tII Oot*\
tOI ,
I Os* us
l
^
6 1 HrHo \JT
'ea .ustic Plant
,LS/Anhydrous .ustic Plant
Monitored Personnel
Area - East Bird Platform
TABLP ' OCCUPATIONAL ENVIRONMENT AIR MONITORING
Date-Time 5-18-75 A.M.
Contaminant Concentration Conditions
NaOH Mist 0.5 mg/Mi3*
4 Hours
Area - West Bird Platfonn
5-19-75 A.M.
Area - Sharpies 3-19-75 a.m. Machine
Area - North of Bagging and Drum l oading
5-20-75
Area, - South of Bagging
5-20-75 A.m.
Area - North
2-27-75
of Caustic Bridge
NaOH Mist
0.4 mg/M3
4 Hours
NaOH Mist
0.1 mg/M3
4 Hours
NaOH Mist
0.08 mg/M3
4.5 Hours
NaOH Mist
0.1 mg/M3
4.5 Hours
Chlorine
< 0.1 ppm 1 Hour
I
Method Scrubber/ Atomic Absorptioi Na Analysis Ditto
Ditto
Ditto
Ditto
o-Tolidine Colorimetric
ioi
t CD < i)
1 ! 1l o it ioi
i--) I -4 I
II I-- I
It* l
tr-o* t->
ON
tab]J^
*
...
,
OCCUPATIONAL ENVIRONMENT AIR MONITORING
*
Monitored
Tea.
Personnel
Date-Time
aphragm Cell Circuits Area - North
2-27-75 A.M.
of Cell Bridge
Area - Bridge
2-27-75 A.M.
between Circuits
3 and 5/6
Area - Bridge between Circuits 5/6 and 1/3
2-27-75 A.li.
Area - Center, Circuits 7/8
3-18-75
Area - Center, Circuit 2
5-18-75
Contaminant Concentration Conditions
Chlorine
<0.1 ppm 1 Hour
Chlorine
0.6 ppm 1 Hour
. Chlorine
0.6 ppm 1 Hours
Method o-Tolidine Colorimetric Ditto
Ditto
NaOH Mist
0.2 mg/M3
NaOH Mist
0.2 mg/M3
h Hours
4- Hours, Circuit No. 1 Down
Scrubber/ Atomic Absorption Ka Analysis
Ditto
\;\
\g tot lOt 151 1 oj
1
1-H b1 HH I--*
-5"
Monitored -ea Personnel
aphragm. Cell Repair i Manufacturing
McNabb Fontenot
Guidry
Clement
Bingham
Clement
Guidry Fontenot Clements
McNabb
McNabb Bellard
Guidry Guidry Clifton
Fontenot
McNabb
i-- i ll I to I I tD I I * II
IOt
IoI ic! I I II I-- I
Craven
TABLl OCCUPATIONAL ENVIRONMENT AIR MONITORING
Date-Time
7-25-74 P.M.
Ditto
7-5O-A A.M.
Ditto
7-51-74 A.M.
8-8-t4 AML
8-8-74 A.M. 10-16-74 P.M. 10-16-74 P.M.
10-16-74' P.M.
.I-,Y-74 11-27-74 A.M.
" 11-27-74 A.M. 2-24-75 P.M. 2-24-75 P.M.
Ditto
Ditto
Ditto
Contaminant Concentration Conditions
Method
Lead
Lead
Lead
Lead
Lead
Lead
Lead Lead Lead
Lead
jicad Lead
Lead Lead Lead
Lead
Lead
Lead
< 0.05 mg/M3 Pouring Anodes
Filter Membrane
(2 Hours)
<0.05 mg/M3 Adding Fb to Pot
Ditto
(2 Hours)
<0.05 mg/M3 Pouring Anodes
(2 Hours)
Ditto
<0.05 mg/M3 Adding Fb to Pot
-
(2 Hours)
Ditto
/">
0.48 mg/M3 Solder Wiping
(2 Hours)
Ditto
0.14 mg/M3 Adding Fb to Pot (S)
(1.5 Hours)
Ditto
< 0.05 mg/M3 Pouring Anodes (1.5 Hrs) Ditto
0.02 mg/M3 Pouring Anodes (3 Hrs) Ditto
0.25 mg/M3 Adding Fb to Pot (S)
( 3 Hours)
Ditto
0.08 mg/M3 Solder Wiping
(2 Hours)
Ditto
< 0.01 mo/M3 ' Pouring Anodes (2 Hrs) Ditto
0.05 mg/M3 Adding Fo to Pot
(2 Hours)
Ditto
O.58 mg/M3 ' Solder Wiping (1 Hour) Ditto
0.6l mg/M3 Solder Wiping (2 Hrs)
Ditto
0.57 mg/M3 Pouring Anodes, S
(2 Hours)
Ditto
0.10 mg/M3 Adding Fb to Pot, S
(2 Hours)
Ditto
0.05 mg/M3 Pouring Anodes, N
(2 Hours)
Ditto
0.06 mg/M3 Adding Fb to Pot, N
(2 Hours)
Ditto
S HHro K oo
Monitored re a Personnel
-aphragm Cell Repair id Manufacturing
Minnifield Carrier
Minnifield
Papillion
Area - Mastic Area - Lead Pots
Thomas
Area - Lead Pots
Area - Mastic Pots
TABLE 6 -
t'd.)
OCCUPATIONAL ENVIRONMENT AIR MONITORING
Date-TimeContaminant Concentration ConditionsMethod
10-16-74 a.m. 10-16-74 P-M. 11-27-74 A.M.
Asbestos Asbestos Asbestos
5.3 F.!bers/ml 5*7 Fibers/ml 3.8 Fibers/ml
Fluffing Asbestos (10 Minutes) Fluffing Asbestos (15 Minutes) Fluffing Asbestos (15 Minutes)
Filter Membrane Ditto Ditto
10-16-74 P.M.
BenzeneSoluble Coal Tar Pitch Volatiles
1.4 mg/M3
Pouring Mastic (2 Hours)
PSM-1013 *#-
11-27-74 A.M. 2-26r75 A.M.
2-26-75 a.m.-
Ditto Carbon Monoride
Ditto
<0.2 mg/M3
5 Ppm
< 5 ppm
2 Hours 2 Hours
Driving Heister (2 Hours)
Ditto
MSA Monitare Sampler
Ditto
2-26-75 A.M. 2-26-75 A.M.
Chlorine Chlorine
<0.1 ppm <0.1 ppm
2 Hours 2 Hours
o-Tolidine Colorimetrip-^
Ditto
l oa I
1 C3 I
It IO I!o I
Si i:i
tti-?*
ro ,4 VO
ea inetnance
*
Monitored Personnel
Vincent
LaSalle
Conner Weston
Weston
Conner
OCCUPATIONAL ENVIROUMENT AIR MONITORING
Date-Time 2-27-75 P.M. 2-27-75 P.M. 3-4-75 A.M. 3-4-75 A.M. 3-4-75 P.M. 3-4-75 p.m.
Contaminant Concentration Conditions
Copper Fume 1.62 mg/M3
Copper Dust 0.12 mg/M3
Copper Dust Copper Fume
0.07 mg/M3 0.16 mg/M3
. Copper Dust 0.13 mg/M3
Copper Fume 0.26 mg/M3
Welding Copper (1 Hour) Buffing Copper (1 Hour) Buffing Copper (l Hr) Welding Copper (l Hour) Buffing Copper (1 Hour) Welding Copper (1 Hour)
Method
Y
Membrane Filter
Ditto
Ditto
Ditto
Ditto
Ditto
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