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Data Source: 2015 Dataset (released September 2016) (updated November 29, 2016) 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. 1991-2015
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 136,711,131 463,986,083 600,697,214 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 61,348,699 179,504,265 900,854,107 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 1,328,334,752
13 2003 141,796,623 435,406,990 577,203,613 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 35,407,524 161,148,392 854,056,256 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 1,285,415,350
14 2004 142,490,856 431,040,417 573,531,273 21,579,137 100,398,108 156,554 100,554,662 1,182,160 76,852,475 78,034,635 1,961,595 123,378 46,995,101 47,118,479 32,140,251 159,254,960 854,920,031 4,041,061 84,403,400 5,116,517 10,752,373 277,137 11,029,510 1,338,591 74,063,298 215,435,981 140,533 1,683,188 1,823,721 291,322,999 2,869,827 13,051,110 4,537,703 9,812,022 4,005,241 431,527,981 1,286,448,013
15 2005 141,594,108 397,455,747 539,049,855 15,985,575 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 33,403,171 164,144,863 815,001,505 2,163,375 71,343,574 6,092,106 9,991,200 625,916 10,617,116 1,555,805 91,608,560 227,061,834 95,436 1,372,032 1,467,467 320,137,862 3,573,382 17,011,609 3,799,970 8,784,754 3,595,136 448,674,688 1,263,676,193
16 2006 134,944,506 356,550,879 491,495,385 15,043,851 98,254,687 68,292 98,322,980 495,369 87,383,614 87,878,983 2,628,282 143,737 38,020,870 38,164,607 38,541,162 167,213,034 772,075,250 3,523,265 99,322,439 5,765,193 15,487,346 291,596 15,778,942 1,593,269 109,953,102 227,757,756 86,654 1,223,957 1,310,611 339,021,469 2,705,442 7,497,306 4,267,381 8,077,593 4,250,520 491,802,819 1,263,878,069
17 2007 126,138,460 318,985,311 445,123,771 13,780,575 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 41,144,734 163,930,015 713,414,438 1,699,232 99,357,209 5,375,240 14,012,918 285,186 14,298,104 1,729,398 105,385,405 233,580,572 87,463 923,463 1,010,926 339,976,902 1,909,683 7,591,844 6,221,582 6,866,048 3,669,491 488,694,733 1,202,109,172
18 2008 116,006,448 274,940,184 390,946,632 12,281,220 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 49,488,763 176,848,860 668,638,747 4,531,841 54,769,210 3,729,385 18,044,854 251,708 18,296,562 1,023,997 95,729,955 197,236,726 105,830 966,386 1,072,216 294,038,897 1,602,162 8,832,925 4,974,447 9,344,045 3,849,825 404,993,296 1,073,632,042
19 2009 97,430,361 223,812,584 321,242,945 10,502,158 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 41,589,806 146,936,834 555,909,967 4,206,027 35,037,646 3,119,043 11,247,696 293,482 11,541,178 754,946 41,099,840 135,012,701 193,398 1,279,280 1,472,679 177,585,220 2,363,577 7,567,326 4,476,091 6,063,633 2,651,265 255,365,952 811,275,918
20 2010 100,831,347 233,703,499 334,534,846 12,251,891 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 48,324,478 174,215,053 619,676,910 4,592,068 49,788,730 4,599,029 13,754,296 260,418 14,014,714 768,200 33,626,936 154,810,275 212,137 1,009,072 1,221,209 189,658,420 2,919,285 7,354,826 5,394,534 7,138,286 3,313,441 289,541,534 909,218,444
21 2011 99,416,304 231,137,739 330,554,043 11,975,917 92,508,188 31,758 92,539,946 1,217,939 74,527,579 75,745,519 2,634,347 114,267 46,961,036 47,075,303 65,408,242 190,863,410 625,933,317 4,173,699 45,662,286 3,324,925 15,727,822 480,380 16,208,203 795,114 33,481,951 162,437,383 53,450 791,959 845,409 196,764,743 3,020,963 4,899,210 6,629,112 7,197,609 2,824,142 291,500,005 917,433,322
22 2012 102,229,639 234,423,865 336,653,504 12,652,743 96,741,732 13,656 96,755,387 1,315,547 77,531,887 78,847,435 3,483,988 60,490 39,349,703 39,410,194 52,480,632 174,222,249 620,283,883 2,088,797 38,042,234 2,918,555 17,355,437 356,371 17,711,808 871,613 42,742,764 161,891,333 70,766 505,460 576,227 205,210,324 2,518,694 3,803,142 6,092,251 7,704,753 2,479,544 289,441,714 909,725,597
23 2013 106,101,391 228,457,586 334,558,977 12,624,262 93,370,523 9,710 93,380,232 886,930 82,165,627 83,052,556 3,867,680 917,717 44,138,458 45,056,175 33,518,973 165,495,384 606,058,856 2,009,622 35,666,104 3,439,068 42,517,782 399,035 42,916,817 671,092 39,868,190 158,823,738 29,094 350,559 379,653 199,071,581 3,314,141 4,123,884 6,718,145 9,170,360 1,763,267 308,864,080 914,922,936
24 2014 103,598,704 227,649,263 331,247,967 12,314,937 94,961,222 9,149 94,970,371 944,738 78,679,040 79,623,779 3,941,813 806,534 52,903,423 53,709,956 34,212,314 171,487,862 610,021,137 1,324,314 35,798,566 3,254,001 29,102,177 433,557 29,535,734 654,203 42,670,747 157,454,940 5,700 350,586 356,286 200,481,973 2,075,042 4,021,685 11,525,438 7,343,482 2,116,288 298,130,727 908,151,864
25 2015 105,642,911 217,443,031 323,085,942 12,438,808 98,131,845 17,203 98,149,048 1,294,889 86,102,840 87,397,729 4,366,521 752,675 73,969,344 74,722,018 28,837,929 195,324,197 628,997,995 1,153,632 32,601,049 2,680,112 30,931,050 299,976 31,231,026 599,642 41,483,478 141,490,301 15,251 253,277 268,528 183,242,307 1,888,591 4,454,047 7,259,558 10,519,688 2,767,432 278,397,083 907,395,078

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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 2016)(Updated Nov 29, 2016). This dataset includes revisions processed by EPA as of October 2015 for the years 1988 to 2015. 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. (2016). TRI Explorer (2015 Dataset (released September 2016) (updated November 29, 2016)) [Internet database]. Retrieved from https://www.epa.gov/triexplorer, (December 07, 2016).

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