Document LKX4ebyEkdbKQ4Onvo9DGa0Y3
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OBJECTIVES
1. Progress report on laboratory biodegradation of PCBs.
2. Residue accumulation studies In fish, birds
anfd mammals.
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3. To show reduction in less biodegradable PCBs SB a result of Monsanto actions on sales and products.
PLAINTIFFS . . .EXHIBIT
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MONSANTO PCB ACTIONS 1. Phase-out of PCB sales worldwide in all
applications except Dielectrics, 2, Conversion of Dielectric Fluids to more bio
degradable PCBs.
NEV 027261 740516
DEGREE OP BIODEGRADATION OF PCBs Based on data presented:
- Transition in biodegradation occurs around penta-/hexa-ch!oroblphenyl.
- Disappearance of all homologs below hexachlorobiphenyl observed,
- Penta- and higher TCB determined by Bpecific GLC/MS Test Method.
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74PIR17
MONSANTO PCB SALES IN U.S.A (Million Pounds)
1969 1970
1972 (Est.)
Dielectrics
37.0
40.5
32.0
All Others
30.0
33.5
-
Total
67.0 74.0 32.0
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EFFECT OF FHASE-OUT POLICY PCB sales reduced In U. S. A. by
30 to 33 million pounds, or ^5^*
740519
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PCB PRODUCT CHANGES IN DIELECTRICS CAPACITORS
97$i conversion to Aroclor 1016 TRANSFORMERS
Elimination of Aroclor 1260
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740520
PCBs USED IN CAPACITORS
PCB Aroclor 1254 Aroclor 1242 Aroclor 1016
Major Use Period
1930-1952
% PCB (Penta- % PCB (Hexa-
chloro- and chloro- and
Higher
Higher
77.0
23.0
1952-Sept. 1971 Oct. 1971-
9.01.0
1.0 O
NEV 027266 740521
Capacitor Fluids Vfhy Convert to Aroclor 1015? 1. 9-fold reduction in PCBs of pentachloro- and higher. 2. 100-fold reduction in PCBs of hexachloro- and higher. 3. Minimum industry testing required.
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740522
Capacitor Fluids What Is The Effect of Aroclor 10l6? u.s. Capacitor Fluid Sales (1972)w 20 lbs.
If Aroclor Was
1254
TXOu J1iuO
1015
$ Pentachloroand higher PCBs
Would Be*
15*^00,000 pounds
1 ,800,000
200,000*
Hexa chloroand Higher PCBs
Would Be*
4,600,000 pounds
200,000
* 2,000
*This does not mean amounts of PCB entering the environment.
n ev 0272&8 740523
WHAT IS CAPACITOR FAILURE RATE? Industry Sources Cite : 0.02-0.2# Fer Year
NEV 027269 740524
IP CAPACITOR FAILURE RATE IS 0 . 2 % PER YEAR TTOFfgrgAgST
PCB ESCAPE TO ENVIRONMENT* IS --
All PCB Homologs Penta Chloro- and higher Hexa Chloro- and higher
Aroclor 1242
40,000 pounds 3,600 400
Aroclor 1016
40,000 pounds 400 4
^Assumes U.S. Fluid Sales of 20 M Lb./Year
NEV 027270 740525
PCBs PRESENT IN ASKAREL TRANSFORMER FLUIDS
% PCBS Pentachloro-
and Higher
Aroclor 1260
100
Aroclor 125A
77
Aroclor 1242 .
9
% PCBs Hexachloroand Higher
70
23
1
Major Use Period
1930-1972
19591968-
NEV 027271 740526
PCB CHANGES IN TRANSFORMER FLUID-APPLICATIONS 1. Aroclor 1260 being phased out now. 2. Aroclor 1016 cannot be used. 3. Incineration of scrap PCBs - 1971 Note; Askarel (PCB) transformers are
tightly sealed units.
NE v 0 Z7 27 2 ^40527
WHAT IS FAILURE RATE IN LIQUID TRANSFORMERS? Industry sources cite: Under 0.2$ per year* * All liquid types - mineral oil and PCB.
PCB failure could be less since they are inherently safer.
NEV 02 72 73 740528
IP ftSKAKEL (PCB) TRANSFORMERS FAIL ftT 02&/YEAR HOW MUCH PCB IS AFFECTED*?
All PCD Homologs . Penta Chloro-and Higher Hexa Chloro-and Higher
Aroclor 1254 24,000 lbs. 18,480
5,520
Aroclor 1242 24,000 lbs.
2,160 240
; (Estimated PCB transformer fluid sales In U.S. ! 12 H lb./year)
\
* With Incineration facilities available, not all i these amounts will enter environment.
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NEV 02727*
^ a r\ p n r t
!
Monsanto13 Present Program To Prevent Environmental Pollution By PCBs
1. No more sales world-wide except approved dielectric users.
1 2. Restrict over 9756 capacitor l'luid Bales to
Aroclor 1016 only.
3 . Restrict PCBs in transformer fluids to Aroclor
1254 and 1242* 4. Continue incineration facilities for scrap PCBs. 5 Encourage dielectric industry through ANSI
C-107 to enforce strict environmental control over PCBs.
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7/ncnn