|
ANTIMONY COMPOUNDS 1991 1992 1993 1994 1995 1996 |
TOTAL RELEASES TO AIR 2,983 2,024 1,901 2,172 2,744 3,059 |
FUGITIVE AIR RELEASES 2,121 1,792 1,688 1,920 2,541 2,850 |
STACK AIR RELEASES 862 232 213 252 203 209 |
|
ARSENIC COMPOUNDS 1991 1992 1993 1994 1995 1996 |
TOTAL RELEASES TO AIR 12,966 5,188 4,839 5,637 66,573 71,050 |
FUGITIVE AIR RELEASES 5,040 3,357 3,135 3,610 64,473 69,010 |
STACK AIR RELEASES 7,926 1,831 1,706 2,027 2,100 2,040 |
|
CADMIUM COMPOUNDS 1991 1992 1993 1994 1995 1996 |
TOTAL RELEASES TO AIR 1,795 1,129 1,129 1,243 2,260 1,122 |
FUGITIVE AIR RELEASES 255 404 374 430 1,641 836 |
STACK AIR RELEASES 1,540 725 682 813 619 286 |
|
COPPER COMPOUNDS 1991 1992 1993 1994 1995 1996 |
TOTAL RELEASES TO AIR 578,690 596,681 554,104 637,847 756,769 809,482 |
FUGITIVE AIR RELEASES 550,548 588,408 546,406 629,146 747,822 800,318 |
STACK AIR RELEASES 28,142 8,273 7,698 8,701 8,947 9,164 |
|
LEAD COMPOUNDS 1991 1992 1993 1994 1995 1996 |
TOTAL RELEASES TO AIR 46,496 22,018 20,471 24,014 129,668 137,321 |
FUGITIVE AIR RELEASES 8,231 9,704 9,005 10,368 115,524 123,595 |
STACK AIR RELEASES 38,265 12,314 11,466 13,646 14,144 13,726 |
|
NICKEL COMPOUNDS 1991 1992 1993 1994 1995 1996 |
TOTAL RELEASES TO AIR 282 1,366 1,270 1,499 1,281 1,102 |
FUGITIVE AIR RELEASES 255 433 400 461 678 610 |
STACK AIR RELEASES 27 933 870 1,038 603 492 |
|
SILVER COMPOUNDS 1991 1992 1994 1995 1996 |
TOTAL RELEASES TO AIR 1,195 481 511 1,020 1,061 |
FUGITIVE AIR RELEASES 1,158 349 373 964 1,005 |
STACK AIR RELEASES 37 132 138 56 56 |
|
ZINC COMPOUNDS 1991 1992 1993 1994 1995 1996 |
TOTAL RELEASES TO AIR 38,730 29,749 27,433 31,584 42,652 44,387 |
FUGITIVE AIR RELEASES 23,692 23,220 21,544 24,806 36,933 38,664 |
STACK AIR RELEASES 15,038 6,529 5,889 6,778 5,719 5,723 |
|
SULFURIC ACID 1991 1992 1993 1994 1995 1996 |
TOTAL RELEASES TO AIR 54,424 56,691 104,767 123,014 120,276 127,544 |
FUGITIVE AIR RELEASES 255 255 1,166 4,426 3,698 3,698 |
STACK AIR RELEASES 54,169 56,436 103,601 118,588 116,578 123,846 |
The ASARCO smelter in Hayden was the number six releaser of TRI chemicals and compounds in America and number one in Arizona under the 1994 Toxic Release Inventory. In other years, it is listed as one of the top TRI releasers nationally.
The Toxic Release Inventory is part of the Emergency Planning and Community Right To Know Act (EPCRA). Since 1987, you have had the right to know about the releases of certain toxic substances into the environment because of EPCRA. The following is the compilation of ASARCO's reports of releases of certain toxic chemicals into the air under the Toxic Release Inventory for the years 1991 to 1996. Releases to the land on-site are not shown.
Note the dramatic increases in releases to the air of Lead and Arsenic in 1995 and 1996. More Arsenic was released as fugitive emissions than stack emissions starting in 1992. Also releases into the air of Sulfuric Acid increased suddenly in 1993, and has increased every year since then.
(Stack air releases are from the smokestack. Fugitive air releases are the amounts that get into the air in other ways where there is not just a smokestack.)
Chemicals are added to the Toxic Release Inventory when they are: "known to cause significant adverse acute human health effects at concentration levels that are reasonably likely to exist beyond facility site boundaries as a result of continuous, or frequently recurring, releases." They are also placed on the Toxic Release Inventory when they are: "known to cause cancer or teratogenic effects; serious or irreversible reproductive dysfunctions, neurological disorders, heritable gene mutations, other chronic health effects."
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