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Data Source: 2016 Dataset (released October 2017) See Note     Instructions for printing wide reports




TRI On-site and Off-site Reported Disposed of or Otherwise Released (in pounds), Trend Report for facilities in All industries, for 1991 Core Chemicals, U.S. 1991-2016
Are year to year changes comparable?
Row #  Year  Fugitive Air  View Trend Graphic Stack Air  View Trend Graphic Total Air Emissions  View Trend Graphic Surface Water Discharges  View Trend Graphic Underground Injection Class I Wells  View Trend Graphic Underground Injection Class II-V Wells  View Trend Graphic Total Underground Injection  View Trend Graphic RCRA Subtitle C Landfills  View Trend Graphic Other Landfills  View Trend Graphic Total Landfills  View Trend Graphic Land Treatment/Application Farming  View Trend Graphic RCRA Subtitle C Surface Impoundment  View Trend Graphic Other Surface Impoundments  View Trend Graphic Total Surface Impoundments  View Trend Graphic Other Land Disposal  View Trend Graphic Total On-site Releases to Land  View Trend Graphic Total On-site Disposal or Other Releases  View Trend Graphic Off-Site Disposal-Storage Only  View Trend Graphic Off-Site Disposal-Solidification/Stabilization (metals only)  View Trend Graphic Off-Site Disposal-Wastewater Treatment-Metals Only  View Trend Graphic Off-Site Disposal-Underground Injection Class I Wells  View Trend Graphic Off-Site Disposal-Underground Injection Class II-V Wells  View Trend Graphic Total Off-Site Disposal-Underground Injection  View Trend Graphic POTWs (Metal and Metal Compounds)  View Trend Graphic Off-Site Disposal-RCRA Subtitle C Landfills  View Trend Graphic Off-Site Disposal-Other Landfills  View Trend Graphic Off-Site Disposal-RCRA Subtitle C Surface Impoundments  View Trend Graphic Off-Site Disposal-Other Surface Impoundments  View Trend Graphic Total Off-Site Disposal-Surface Impoundments  View Trend Graphic Total Off-Site Disposal-Landfill/Surface Impoundments  View Trend Graphic Off-Site Disposal-Land Treatment  View Trend Graphic Off-Site Disposal-Other Land Disposal  View Trend Graphic Off-Site Disposal-Other Off-site Management  View Trend Graphic Off-Site Disposal-Waste Broker  View Trend Graphic Off-Site Disposal-Unknown  View Trend Graphic Total Off-site Disposal or Other Releases  View Trend Graphic Total On- and Off-site Disposal or Other Releases  View Trend Graphic
 
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1 1991 474,778,534 1,042,930,610 1,517,709,144 31,723,400 . . 139,346,583 . . 106,272,262 2,317,752 . . 73,685,255 109,776,105 292,051,374 1,980,830,501 10,231,774 10,788,632 4,863,925 . . 7,363,284 6,289,717 . . . . . 159,972,134 4,433,673 10,418,474 466,726 9,368,086 172,476 224,368,901 2,205,199,402
2 1992 414,796,080 1,010,211,865 1,425,007,945 27,991,320 . . 121,115,226 . . 91,314,441 2,555,016 . . 74,265,535 91,440,060 259,575,052 1,833,689,543 8,053,986 15,178,832 4,626,027 . . 8,591,443 3,670,861 . . . . . 152,344,366 3,084,088 9,933,901 2,458,200 4,409,430 1,861,808 214,212,942 2,047,902,485
3 1993 352,847,689 895,094,828 1,247,942,517 18,625,279 . . 113,238,504 . . 76,026,265 1,772,939 . . 54,254,213 83,158,043 215,211,460 1,595,017,760 909,262 13,598,905 3,621,136 . . 9,087,630 2,172,140 . . . . . 199,411,662 875,696 5,282,317 6,894,261 8,675,911 1,219,941 251,748,861 1,846,766,621
4 1994 327,938,453 884,564,944 1,212,503,397 18,950,245 . . 113,814,569 . . 63,938,704 1,768,005 . . 52,884,938 104,041,190 222,632,837 1,567,901,048 1,836,214 16,678,395 4,679,894 . . 10,312,083 2,099,461 . . . . . 206,597,935 842,789 6,743,693 8,723,216 4,923,875 1,177,223 264,614,778 1,832,515,827
5 1995 284,321,566 852,521,031 1,136,842,597 17,004,262 . . 154,289,198 . . 70,620,287 1,390,838 . . 58,913,037 97,702,208 228,626,370 1,536,762,427 2,188,355 14,999,859 3,731,737 . . 11,530,470 2,224,451 . . . . . 204,975,073 858,661 11,092,463 13,389,212 4,172,495 1,610,688 270,773,464 1,807,535,891
6 1996 251,200,963 798,493,133 1,049,694,096 16,152,807 137,431,423 590,971 138,022,394 20,717,704 59,488,961 80,206,665 1,183,046 . . 70,382,967 128,235,434 280,008,112 1,483,877,410 1,136,658 42,729,529 3,754,032 . . 8,119,740 2,164,339 . . . . . 219,980,543 477,595 10,829,633 12,090,183 4,882,866 1,249,068 307,414,186 1,791,291,595
7 1997 224,281,312 718,457,704 942,739,016 19,296,096 130,957,839 264,553 131,222,392 13,939,633 92,408,282 106,347,915 1,216,897 . . 93,640,909 114,796,264 316,001,985 1,409,259,488 6,195,576 133,397,798 5,412,865 . . 7,256,732 2,323,878 . . . . . 229,739,224 664,548 9,511,432 13,721,577 171,521,052 2,195,871 581,940,552 1,991,200,040
8 1998 201,930,447 684,987,829 886,918,277 18,582,461 114,419,684 105,386 114,525,070 16,726,762 103,224,505 119,951,267 998,183 . . 87,111,209 128,435,411 336,496,070 1,356,521,877 5,271,710 121,338,909 3,053,148 . . 8,884,285 2,956,632 . . . . . 212,119,579 514,928 13,870,640 8,592,045 11,996,890 3,072,026 391,670,792 1,748,192,670
9 1999 184,319,164 645,519,590 829,838,754 15,604,079 109,175,084 132,241 109,307,325 13,382,554 92,678,824 106,061,378 1,024,462 . . 80,936,625 133,303,870 321,326,335 1,276,076,492 5,888,327 122,007,070 6,990,922 . . 18,286,383 2,386,321 . . . . . 212,103,437 1,607,821 12,524,675 8,639,946 10,187,984 3,000,119 403,623,006 1,679,699,498
10 2000 168,834,327 606,105,386 774,939,712 15,560,474 111,325,823 182,683 111,508,506 8,226,377 108,633,335 116,859,713 2,933,543 . . 57,277,547 106,333,782 283,404,585 1,185,413,277 7,465,664 132,817,860 6,823,881 . . 18,740,698 2,447,088 . . . . . 224,967,324 2,167,282 9,060,340 7,098,033 13,126,915 3,806,734 428,521,819 1,613,935,095
11 2001 145,745,617 474,771,583 620,517,199 13,715,817 95,976,266 161,407 96,137,673 4,971,648 94,571,624 99,543,272 1,942,906 . . 41,290,513 88,612,319 231,389,010 961,759,700 4,728,856 145,352,875 6,736,065 . . 15,060,864 1,843,823 . . . . . 222,737,267 1,727,029 9,336,674 5,351,920 8,664,961 2,207,185 423,747,519 1,385,507,218
12 2002 136,711,381 463,986,333 600,697,714 17,037,550 103,476,368 138,710 103,615,078 2,548,359 72,371,609 74,919,968 1,676,685 . . 41,558,913 61,348,699 179,504,265 900,854,607 4,503,498 171,256,611 5,774,107 . . 12,230,159 1,554,857 21,171,906 169,862,923 . . 7,416,845 198,451,674 3,739,372 15,423,160 2,967,630 8,339,196 3,240,382 427,480,645 1,328,335,252
13 2003 141,796,873 435,407,240 577,204,113 16,573,129 99,031,448 99,675 99,131,123 7,820,183 75,502,994 83,323,177 2,161,643 186,396 40,069,653 40,256,049 35,407,524 161,148,392 854,056,756 2,482,923 114,036,611 4,951,515 10,872,493 240,151 11,112,644 1,532,155 52,677,892 210,621,328 187,975 1,557,091 1,745,066 265,044,286 3,790,244 12,979,389 3,597,448 8,895,502 2,936,376 431,359,094 1,285,415,850
14 2004 142,490,786 431,040,357 573,531,143 21,579,137 100,290,108 156,554 100,446,662 1,182,160 76,852,475 78,034,635 1,961,595 123,378 46,995,101 47,118,479 32,140,251 159,254,960 854,811,901 4,041,061 84,403,400 5,116,517 10,752,373 277,137 11,029,510 1,338,591 74,063,293 215,435,981 140,533 1,683,188 1,823,721 291,322,994 2,869,827 13,051,110 4,537,703 9,812,022 4,005,241 431,527,976 1,286,339,878
15 2005 141,594,338 397,387,354 538,981,692 15,979,225 95,356,262 464,948 95,821,211 785,143 79,571,832 80,356,975 2,759,722 174,106 47,450,890 47,624,996 33,403,171 164,144,863 814,926,992 2,163,375 71,343,574 6,092,106 9,991,200 625,916 10,617,116 1,555,805 91,608,560 227,053,200 95,436 1,372,032 1,467,467 320,129,228 3,573,382 17,011,609 3,799,970 8,784,754 3,595,136 448,666,054 1,263,593,046
16 2006 134,944,750 356,548,392 491,493,142 15,037,693 98,254,687 68,292 98,322,980 495,369 86,063,205 86,558,574 2,628,282 143,737 37,999,020 38,142,757 38,541,161 165,870,774 770,724,589 3,523,265 99,322,439 5,765,193 15,487,346 291,596 15,778,942 1,593,269 109,953,102 227,748,594 86,654 1,223,957 1,310,611 339,012,307 2,705,442 7,497,306 4,267,381 8,077,593 4,250,520 491,793,657 1,262,518,246
17 2007 126,138,706 318,985,276 445,123,982 13,774,475 90,524,471 55,606 90,580,078 1,543,617 82,553,052 84,096,669 2,109,492 208,049 36,371,072 36,579,120 41,144,734 163,930,015 713,408,549 1,699,232 99,357,209 5,375,240 14,012,918 285,186 14,298,104 1,729,398 105,385,405 233,571,372 87,463 923,463 1,010,926 339,967,702 1,909,683 7,591,844 6,221,582 6,866,048 3,669,491 488,685,533 1,202,094,083
18 2008 116,000,625 275,127,663 391,128,289 12,274,225 88,497,030 65,005 88,562,035 1,398,987 82,960,904 84,359,891 1,686,622 372,848 40,940,736 41,313,584 49,488,763 176,848,860 668,813,408 4,531,695 54,769,707 3,729,385 18,044,854 251,708 18,296,562 1,024,156 95,729,955 197,204,476 105,830 966,386 1,072,216 294,006,647 1,602,162 8,832,925 4,974,447 9,344,045 3,849,825 404,961,555 1,073,774,964
19 2009 97,493,424 223,809,557 321,302,981 10,496,173 77,185,685 42,344 77,228,029 1,533,075 60,544,423 62,077,498 1,687,318 219,991 41,362,221 41,582,212 41,589,806 146,936,834 555,964,017 4,225,296 35,037,646 3,119,043 11,247,696 293,482 11,541,178 754,696 41,099,840 134,983,569 193,398 1,279,280 1,472,679 177,556,088 2,363,577 7,567,326 4,476,091 6,063,633 2,651,265 255,355,838 811,319,855
20 2010 100,830,611 233,715,213 334,545,824 12,245,791 98,589,838 85,281 98,675,119 1,239,827 77,698,153 78,937,980 2,216,568 217,547 44,518,480 44,736,027 48,324,478 174,215,053 619,681,788 4,592,068 49,788,730 4,599,029 13,754,296 260,418 14,014,714 768,200 33,653,716 154,776,141 212,137 1,009,072 1,221,209 189,651,066 2,919,285 7,354,826 5,394,665 7,138,286 3,313,441 289,534,311 909,216,099
21 2011 99,647,814 231,282,385 330,930,200 11,982,978 93,130,145 31,758 93,161,903 1,217,939 74,527,579 75,745,519 2,634,347 114,267 46,961,036 47,075,303 65,437,998 190,893,166 626,968,246 4,142,723 45,660,437 3,325,232 15,727,822 483,384 16,211,207 795,224 33,478,751 162,398,629 53,450 791,959 845,409 196,722,788 3,020,963 4,897,999 6,629,303 7,173,485 2,825,695 291,405,057 918,373,303
22 2012 103,213,928 234,810,782 338,024,709 12,696,153 98,117,378 13,656 98,131,033 1,315,547 79,616,452 80,932,000 3,483,988 60,490 39,349,703 39,410,194 52,480,632 176,306,814 625,158,710 2,128,239 38,044,887 2,918,776 17,355,437 359,280 17,714,717 838,225 42,775,665 161,880,511 70,766 505,460 576,227 205,232,402 2,518,694 3,801,985 6,092,508 7,709,746 2,395,577 289,395,755 914,554,465
23 2013 104,269,990 228,654,615 332,924,604 12,660,080 93,162,572 9,707 93,172,278 886,930 84,172,377 85,059,306 3,803,503 917,717 44,095,158 45,012,875 33,518,973 167,394,657 606,151,620 2,044,998 35,669,255 3,439,570 42,524,653 402,654 42,927,307 671,582 39,892,490 158,902,931 29,094 350,559 379,653 199,175,075 3,314,141 4,123,117 6,718,142 9,309,176 1,765,680 309,158,043 915,309,662
24 2014 101,043,683 228,020,181 329,063,864 12,350,765 98,386,800 9,149 98,395,949 944,738 77,897,517 78,842,255 3,884,616 806,534 52,838,283 53,644,816 34,212,314 170,584,001 610,394,579 1,381,129 35,801,512 3,254,481 29,317,347 437,283 29,754,630 655,156 42,531,203 157,415,793 5,700 350,586 356,286 200,303,281 2,075,042 4,020,878 11,525,188 7,306,478 2,118,186 298,195,962 908,590,542
25 2015 100,873,023 217,861,975 318,734,998 12,494,491 98,127,344 17,203 98,144,547 1,201,983 82,200,558 83,402,541 4,355,907 752,675 73,972,914 74,725,588 28,869,820 191,353,856 620,727,892 1,235,131 32,659,510 2,683,350 30,958,548 303,714 31,262,262 598,845 41,886,726 141,154,162 15,251 253,277 268,528 183,309,416 1,890,714 4,438,520 7,334,050 10,436,447 2,842,209 278,690,454 899,418,345
26 2016 91,698,655 213,727,593 305,426,247 11,634,876 104,282,077 1,960 104,284,037 829,689 82,380,970 83,210,660 3,003,797 819,053 70,831,038 71,650,091 34,838,237 192,702,785 614,047,945 1,284,648 31,273,561 3,532,568 13,631,333 3,992,608 17,623,941 699,780 34,205,236 127,047,584 6,829 256,851 263,679 161,516,499 1,433,808 6,118,917 10,889,414 10,668,623 2,397,960 247,439,719 861,487,665

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Note: Reporting year (RY) 2015 is the most recent TRI data available. Facilities reporting to TRI were required to submit their data to EPA by July 1 for the previous calendar year's activities.. TRI Explorer is using an updated data set (released to the public in October 2017). This dataset includes revisions for the years 1988 to 2016 processed by EPA, after the National Analysis Dataset was released. Revisions submitted to EPA after this time are not reflected in TRI Explorer reports. TRI data may also be obtained through EPA Envirofacts.

Users of TRI information should be aware that TRI data reflect releases and other waste management activities of chemicals, not whether (or to what degree) the public has been exposed to those chemicals. Release estimates alone are not sufficient to determine exposure or to calculate potential adverse effects on human health and the environment. TRI data, in conjunction with other information, can be used as a starting point in evaluating exposures that may result from releases and other waste management activities which involve toxic chemicals. The determination of potential risk depends upon many factors, including the toxicity of the chemical, the fate of the chemical, and the amount and duration of human or other exposure to the chemical after it is released.

The "1991 core chemicals" include only chemicals that were reported in all years beginning from 1991. These tables do not include, for example, chemicals added since 1991 or chemicals delisted in any year. Because reporting definitions for ammonia, hydrochloric acid, sulfuric acid and vanadium have changed and reporting requirements for previously listed PBTs have changed, these chemicals are also not included in the report.

Comparisons are made only for chemicals that were reportable with the same definition in the years from 1991 to 2009.

The trend report for '1991 core chemicals' includes only chemicals that were reported in all years beginning from 1991. These tables do not include, for example, chemicals added since 1991 or chemicals delisted in any year. Because reporting definitions for ammonia, hydrochloric acid, sulfuric acid and vanadium have changed and reporting requirements for previously listed PBTs have changed, these chemicals are also not included in the report.

On-site Disposal or Other Releases include Underground Injection to Class I Wells (Section 5.4.1), RCRA Subtitle C Landfills (5.5.1A), Other Landfills (5.5.1B), Fugitive or Non-point Air Emissions (5.1), Stack or Point Air Emissions (5.2), Surface Water Discharges (5.3), Underground Injection to Class II-V Wells (5.4.2), Land Treatment/Application Farming (5.5.2), RCRA Subtitle C Surface Impoundments (5.5.3A), Other Surface Impoundments (5.5.3B), and Other Land Disposal (5.5.4). Off-site Disposal or Other Releases include from Section 6.2 Class I Underground Injection Wells (M81), Class II-V Underground Injection Wells (M82, M71), RCRA Subtitle C Landfills (M65), Other Landfills (M64, M72), Storage Only (M10), Solidification/Stabilization - Metals and Metal Category Compounds only (M41 or M40), Wastewater Treatment (excluding POTWs) - Metals and Metal Category Compounds only (M62 or M61), RCRA Subtitle C Surface Impoundments (M66), Other Surface Impoundments (M67, M63), Land Treatment (M73), Other Land Disposal (M79), Other Off-site Management (M90), Transfers to Waste Broker - Disposal (M94, M91), and Unknown (M99) and, from Section 6.1 Transfers to POTWs (metals and metal category compounds only).

For purposes of analysis, data reported as Range Code A is calculated using a value of 5 pounds, Range Code B is calculated using a value of 250 pounds and Range Code C is calculated using a value of 750 pounds.

Beginning with the 2006 reporting year, the industry classification code is the North American Industry Classification System (NAICS), which has replaced the 1997 US Standard Industrial Classification (SIC) code. The primary NAICS code as reported by the facility is now used for all analysis purposes for all reporting years 2006 and later. For reporting years prior to 2006, EPA has assigned a primary NAICS code based on the SIC codes as reported for those years for the purpose of analyzing trends.

A decimal point, or "." denotes the following: if "NA" is reported across an entire row, the facility submitted a Form A (i.e., the facility certified that its total annual reportable amount is less than 500 pounds, and does not manufacture, process, or otherwise use more than 1 million pounds); or if a decimal point is reported in a single column, the facility left that particular cell blank in its Form R submission (a zero in a cell denotes either that the facility reported "0" or "NA" in its Form R submission). A decimal point is reported in the following columns because the element was not required to be reported for that year (the Form R has been changed over the years to require more detailed reporting for some media): Underground Injection Class I, Underground Injection Class II-V, RCRA Subtitle C Landfills and Other Landfills for the years 1988 to 1995; Off-Site Disposal - RCRA Subtitle C Landfills, Off-Site Disposal - Other Landfills and Off-Site Disposal - Surface Impoundments for the years 1988 to 2001; Other RCRA Subtitle C Surface Impoundments, Other Surface Impoundments, Off-Site Underground Injection Class I Wells, Off-Site Underground Injection Class II-V Wells, Off-Site Disposal - RCRA Subtitle C Surface Impoundments and Off-Site Disposal - Other Surface Impoundments for the years 1988 to 2002.

How to cite TRI Explorer. Following APA Style, 6th edition, an appropriate citation to TRI Explorer is:
United States Environmental Protection Agency. (2017). TRI Explorer (2016 Dataset (released October 2017)) [Internet database]. Retrieved from https://www.epa.gov/triexplorer, (October 18, 2017).

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