| 41 | Westlake Chemical | 879,469 | 4.25 | 14.57 | 15% | 32% | 45% |
| 77 | Formosa Plastics | 330,991 | 1.88 | 11.21 | 22% | 74% | 73% |
| 8 | Celanese | 4,448,268 | 1.03 | 8.40 | 14% | 61% | 100% |
| 5 | Huntsman Corp. | 5,648,513 | 0.31 | 8.01 | 16% | 62% | 96% |
| 6 | Dow Inc. | 4,778,935 | 5.55 | 7.65 | 18% | 52% | 34% |
| 2 | BASF | 8,446,509 | 3.98 | 7.31 | 20% | 41% | 48% |
| 84 | Bayer | 245,494 | 0.27 | 5.65 | 16% | 34% | 67% |
| 34 | Occidental Petroleum | 1,044,798 | 0.61 | 4.00 | 19% | 71% | 37% |
| 71 | DuPont de Nemours | 377,715 | 1.22 | 3.05 | 19% | 21% | 86% |
| 93 | Olin Corp. | 204,834 | 0.30 | 3.03 | 19% | 74% | 56% |
| 1 | LyondellBasell Industries | 16,158,867 | 5.18 | 2.65 | 17% | 68% | 56% |
| 48 | Solvay | 778,135 | 0.69 | 2.36 | 15% | 58% | 40% |
| 58 | Koch Industries | 572,658 | 27.99 | 1.92 | 18% | 48% | 34% |
| 7 | Canopus International | 4,740,512 | 1.42 | 1.45 | 14% | 40% | 95% |
| 99 | Stepan | 192,438 | 0.41 | 1.39 | 9% | 38% | 90% |
| 28 | Eastman Chemical | 1,259,296 | 4.12 | 1.07 | 20% | 39% | 55% |
| 14 | Ecolab | 2,802,073 | 0.01 | 0.91 | 16% | 79% | 99% |
| 24 | Albemarle | 1,748,732 | 0.45 | 0.91 | 18% | 71% | 55% |
| 73 | Harsco | 361,157 | <0.01 | 0.62 | 13% | 18% | 46% |
| 42 | Evonik Industries | 838,776 | 0.30 | 0.59 | 18% | 41% | 49% |
| 53 | Cleveland-Cliffs | 681,654 | 1.15 | 0.58 | 23% | 47% | 20% |
| 16 | Standard Industries Inc. | 2,422,587 | 0.86 | 0.48 | 18% | 73% | 94% |
| 23 | PPG Industries | 1,813,397 | 0.58 | 0.43 | 18% | 44% | 62% |
| 33 | Exxon Mobil | 1,124,537 | 7.54 | 0.40 | 24% | 75% | 26% |
| 9 | Berkshire Hathaway | 3,485,083 | 2.04 | 0.31 | 15% | 34% | 20% |
| 68 | United States Steel | 403,834 | 1.46 | 0.28 | 23% | 60% | 74% |
| 12 | Saint-Gobain | 3,085,417 | 0.80 | 0.25 | 9% | 36% | 98% |
| 45 | General Dynamics | 790,602 | 0.21 | 0.21 | 14% | 66% | 85% |
| 38 | Phillips 66 | 958,922 | 4.20 | 0.20 | 15% | 61% | 24% |
| 43 | Chevron | 817,309 | 2.60 | 0.20 | 15% | 70% | 46% |
| 15 | Carlyle Group | 2,478,525 | 0.54 | 0.18 | 17% | 66% | 53% |
| 70 | Lotte Chemical | 395,551 | 1.12 | 0.14 | 14% | 24% | 100% |
| 92 | Republic Services | 207,800 | 0.01 | 0.13 | 17% | 48% | 75% |
| 22 | Northrop Grumman | 1,822,474 | 0.48 | 0.12 | 23% | 19% | 99% |
| 87 | Tesla Inc. | 236,729 | 0.30 | 0.11 | 10% | 45% | 95% |
| 21 | Ashland Global Holdings | 1,841,399 | 1.21 | 0.08 | 24% | 55% | 73% |
| 32 | Howmet Aerospace | 1,185,642 | 0.06 | 0.08 | 19% | 43% | 37% |
| 47 | Marathon Petroleum | 778,814 | 4.25 | 0.08 | 18% | 59% | 31% |
| 56 | Allegheny Technologies | 595,416 | 0.26 | 0.08 | 13% | 14% | 51% |
| 50 | Akzo Nobel | 731,815 | 0.10 | 0.06 | 18% | 66% | 100% |
| 54 | Sasol | 678,278 | 0.61 | 0.05 | 16% | 29% | 97% |
| 59 | Schlumberger | 569,101 | 0.01 | 0.05 | 25% | 41% | 77% |
| 83 | Johnson & Johnson | 247,586 | 0.03 | 0.05 | 13% | 49% | 72% |
| 31 | Baker Hughes | 1,203,115 | 0.83 | 0.03 | 14% | 51% | 82% |
| 55 | Valero Energy | 613,845 | 3.38 | 0.03 | 20% | 71% | 31% |
| 63 | American Securities LLC | 470,325 | 0.57 | 0.03 | 18% | 31% | 44% |
| 72 | Alcoa | 368,679 | 3.10 | 0.03 | 10% | 40% | 78% |
| 88 | Huntington Ingalls Industries | 217,848 | 0.16 | 0.03 | 21% | 65% | 78% |
| 94 | Henkel | 204,428 | 0.05 | 0.03 | 21% | 50% | 69% |
| 19 | Shell PLC | 2,072,243 | 1.88 | 0.02 | 18% | 55% | 48% |
| 65 | Clayton Dubilier & Rice | 448,058 | 0.26 | 0.02 | 26% | 77% | 89% |
| 26 | Baxter International | 1,453,506 | 0.05 | 0.01 | 11% | 8% | 100% |
| 29 | Lockheed Martin | 1,237,947 | 0.01 | 0.01 | 21% | 79% | 100% |
| 61 | Nucor | 547,521 | 0.50 | 0.01 | 22% | 45% | 21% |
| 64 | Goodyear Tire & Rubber | 452,839 | 0.86 | 0.01 | 23% | 82% | 76% |
| 69 | PBF Energy | 397,597 | 1.64 | 0.01 | 16% | 63% | 47% |
| 97 | Medtronic | 195,806 | 0.03 | 0.01 | 15% | 51% | 90% |
| 3 | Becton Dickinson | 6,185,402 | 0.16 | <0.01 | 10% | 37% | 42% |
| 4 | Salzgitter | 5,950,758 | 0.01 | 13% | 68% | 100% | |
| 10 | NOV Inc. | 3,425,685 | 0.37 | <0.01 | 12% | 59% | 95% |
| 11 | Terumo | 3,257,534 | 0.04 | 9% | 32% | 100% | |
| 13 | Rio Tinto | 3,007,362 | 0.15 | <0.01 | 9% | 33% | 90% |
| 17 | Kubota | 2,201,049 | 0.01 | 17% | 42% | 100% | |
| 18 | General Electric | 2,138,110 | 0.33 | <0.01 | 21% | 26% | 60% |
| 20 | Freeport-McMoRan | 2,018,282 | 3.10 | <0.01 | 20% | 71% | 98% |
| 25 | Mitsui | 1,490,049 | 0.08 | <0.01 | 25% | 76% | 100% |
| 27 | The Pritzner Organization | 1,350,555 | 0.04 | 30% | 72% | 82% | |
| 30 | Klockner | 1,221,717 | <0.01 | 16% | 51% | 52% | |
| 35 | Ametek | 1,032,011 | 0.18 | 11% | 39% | 94% | |
| 36 | Emerson Electric | 992,616 | 0.01 | 18% | 41% | 66% | |
| 37 | Kingspan plc | 978,255 | 0.06 | 9% | 17% | 100% | |
| 39 | Tenneco | 942,678 | 0.09 | <0.01 | 14% | 30% | 53% |
| 40 | Linde | 910,598 | 0.39 | <0.01 | 19% | 53% | 99% |
| 44 | Cenovus Energy | 799,615 | 0.46 | <0.01 | 21% | 33% | 82% |
| 46 | BP | 780,049 | 0.98 | <0.01 | 23% | 39% | 84% |
| 49 | Century Aluminum | 759,378 | 1.93 | <0.01 | 16% | 7% | 86% |
| 51 | Ingredion | 713,524 | 0.59 | 14% | 36% | 65% | |
| 52 | Siemens Energy | 693,493 | 0.07 | 14% | 58% | 99% | |
| 57 | Cornerstone Building Brands | 593,698 | 0.14 | 15% | 50% | 48% | |
| 60 | Ardagh Packaging Group | 565,803 | 2.40 | 12% | 49% | 75% | |
| 62 | KKR & Co. | 521,649 | 0.06 | <0.01 | 18% | 42% | 74% |
| 66 | Faurecia SE | 428,684 | <0.01 | 11% | 19% | 66% | |
| 67 | Middleby Corp. | 420,579 | <0.01 | 13% | 22% | 96% | |
| 74 | Granite Construction | 353,510 | 0.04 | <0.01 | 24% | 72% | 92% |
| 75 | Petroleos Mexicanos (Pemex) | 347,589 | 0.23 | <0.01 | 20% | 77% | 100% |
| 76 | American Electric Power | 342,648 | 1.42 | 15% | 10% | 62% | |
| 78 | Edwards Lifesciences | 282,212 | <0.01 | 48% | 96% | 100% | |
| 79 | Zimmer Biomet | 260,804 | <0.01 | 14% | 56% | 90% | |
| 80 | Targa Resources | 251,868 | 0.04 | 23% | 89% | 100% | |
| 81 | Rolls-Royce | 251,665 | 0.02 | 28% | 69% | 97% | |
| 82 | Lincoln Electric Holdings | 250,378 | <0.01 | 12% | 72% | 98% | |
| 85 | International Paper | 245,134 | 34.38 | <0.01 | 19% | 43% | 18% |
| 86 | Archer Daniels Midland | 240,018 | 10.78 | 21% | 25% | 51% | |
| 89 | Graphic Packaging | 217,118 | 7.36 | <0.01 | 28% | 50% | 76% |
| 90 | Owens Corning | 215,445 | 0.82 | <0.01 | 17% | 48% | 25% |
| 91 | Leggett & Platt | 213,582 | 0.10 | <0.01 | 8% | 42% | 89% |
| 95 | Gerdau | 204,168 | 0.10 | <0.01 | 15% | 42% | 44% |
| 96 | Commercial Metals Co. | 199,375 | 0.07 | 24% | 42% | 65% | |
| 98 | AGCO Corp. | 194,472 | 0.02 | 12% | 10% | 30% | |
| 100 | Medline Industries | 192,090 | 0.02 | 12% | 51% | 90% |
This edition of the Toxic 100 Air ranks companies by comparative chronic human health risk from air pollutants directly released or transferred to incinerators (and not destroyed) from large facilities in the US in 2020.
RSEI score: Estimated population chronic health human health risk from air releases and incineration transfers reported to the US Environmental Protection Agency's Toxics Release Inventory (TRI) for the 2020 Reporting Year, as computed by the US EPA's Risk-Screening Environmental Indicators (RSEI ver. 2.3.10) from quantity released, toxicity of chemicals, and population exposure. Data are adjusted by the Corporate Toxics Information Project (CTIP) for subsequent revisions to TRI data, including where available revisions to the share of hexavalent chromium in chromium releases.
Source: US EPA and Corporate Toxics Information Project (CTIP).
Quantity of toxic air releases and incineration transfers: Millions of pounds of toxic chemicals released to the air on-site or transferred offsite for incineration in the TRI 2020 Reporting Year, without adjustment for toxicity or population exposure.
Source: US EPA.
Environmental Justice (EJ): Poor Share and Minority Share: Shares of the total population health risk borne by people living below the poverty line or by people in minority racial/ethnic groups. In the U.S. population, 10.5 percent lived below the poverty line in 2020 and 40 percent are members of minority racial/ethnic groups.
Sources: US EPA, US Census, and CTIP.
Coverage: This table presents the RSEI companies that appear on the Forbes Global 2000 list, the Forbes America's Largest Private Companies list, the Fortune 500 list, the Fortune Global 500, the Russell 1000 list, oror the S&P 500. Individual facilities are assigned to corporate parents on the basis of the most current information on their ownership structure as of mid 2022.
Source: CTIP.
The links from each parent name lead to an application that gives detailed facility and chemical information about the company. You can also search for companies not on the Toxic 100 Air. For more information on the data, see the technical notes.