Table 4.37
Releases for printed wiring board manufacturing facilities (SIS 3672) in TRI, by number (releases reported in pounds/year)
Chemical name
# Facilities reporting
chemical
Fugitive
air
Point air
Water
discharges
Underground
injection
Land
disposal
Total
releases
Average release per
facility
Sulfuric acid
208
25640
98477
0
0
250
124367
598
Ammonia
117
80332
480081
28029
0
0
588442
5029
Copper
89
1345
1840
27
0
8500
11732
132
Copper compound
73
6830
7532
1831
0
9739
25932
355
Hydrochloric acid
70
13268
40342
32189
0
27
85826
1226
Nitric acid
59
7572
12750
0
0
0
20322
344
Glycol ethers
25
82099
132118
23057
0
0
237274
9491
Formaldehyde
22
3225
14912
255
0
0
18392
836
Chlorine
16
1545
5992
50
0
0
7587
747
Lead
12
250
750
5
0
3500
4505
375
Acetone
10
117974
70711
0
0
0
188685
18869
Freon 113
9
83258
37550
0
0
0
120808
13423
Lead compounds
7
760
1260
252
0
0
2272
325
Ammonium sulfate
(solution)
6
0
0
100000
0
0
100000
16667
Methyl ethyl ketone
6
13770
25023
0
0
0
38793
6466
Phosphoric acid
6
510
505
0
0
0
1015
169
Methanol
5
62978
7394
0
0
0
70372
14074
Dichloromethane
4
51269
125288
5
0
0
176562
44141
1,1,1-Trichloroethane
3
24930
8310
0
0
0
33240
11080
2-Methoxyethanol
3
5000
40960
0
0
0
45960
15320
Hydrogen
fluoride
2
0
250
0
0
0
250
125
Nickel
2
0
0
0
0
0
0
0
Toluene
2
29425
14125
0
0
0
43550
21775
Zinc compounds
2
750
0
0
0
0
750
375
(continued)
4 Electrical and Electronic Wastes Treatment
169