Toxic 100 Air Polluters Index (2024 Report, Based on 2022 Data)

Toxic 100 Air Rank	Corporation	Toxic score (pounds released x toxicity x population exposure)	Millions of pounds of toxic air releases	Millions of pounds of toxic incineration transfers	EJ: Poor Share	EJ: Minority Share	% of toxic score from a single facility
71	Formosa Plastics	396,900	1.61	16.84	22%	71%	68%
12	Dow Inc.	4,714,688	5.94	13.28	17%	51%	37%
14	Celanese	2,902,196	0.86	8.32	15%	66%	99%
3	Huntsman Corp.	17,664,686	0.78	6.70	11%	37%	90%
11	BASF	4,990,192	4.90	4.56	15%	40%	48%
78	United States Steel	267,057	1.73	4.53	20%	52%	58%
96	Olin Corp.	207,678	0.31	3.51	15%	67%	60%
16	PPG Industries	2,847,952	0.81	3.34	16%	38%	57%
10	LyondellBasell Industries	5,019,237	5.68	3.23	17%	75%	93%
42	Covestro	880,866	0.06	2.90	12%	24%	92%
38	Occidental Petroleum	1,003,902	0.88	2.55	18%	72%	30%
73	Saudi Arabian Oil Company (Saudi Aramco)	359,146	2.86	2.45	17%	50%	41%
31	Westlake Chemical	1,351,589	3.66	2.12	16%	31%	34%
74	International Flavors & Fragrances	357,349	0.61	2.07	18%	17%	99%
45	Koch Industries	811,542	29.19	1.82	19%	56%	69%
52	Solvay	657,468	0.74	1.82	15%	48%	46%
1	Standard Industries Inc.	19,819,724	0.96	1.38	17%	74%	99%
17	Exxon Mobil	2,692,144	9.20	0.77	18%	68%	44%
26	Evonik Industries	1,681,226	0.32	0.55	18%	47%	61%
19	Eastman Chemical	2,407,690	4.74	0.42	18%	45%	71%
67	Ecolab	444,069	0.01	0.40	14%	81%	99%
87	Bio-Rad Laboratories	240,154	0.01	0.40	11%	64%	100%
18	Berkshire Hathaway	2,664,227	2.11	0.39	14%	32%	26%
93	Henkel	215,352	0.05	0.34	20%	51%	79%
33	Carlyle Group	1,207,037	0.42	0.20	17%	80%	90%
5	Tesla Inc.	6,954,555	0.28	0.18	10%	42%	97%
56	Cleveland-Cliffs	584,089	0.83	0.16	21%	43%	17%
60	Valero Energy	526,447	3.61	0.11	18%	71%	33%
39	Mitsui	1,003,671	0.10	0.10	16%	70%	100%
46	Phillips 66	803,565	4.68	0.08	15%	61%	33%
62	Goodyear Tire & Rubber	510,693	1.30	0.08	23%	80%	79%
94	Huntington Ingalls Industries	212,848	0.19	0.08	19%	63%	83%
37	Marathon Petroleum	1,061,905	5.08	0.06	15%	50%	31%
40	Chevron	961,237	3.14	0.06	14%	64%	42%
75	Sasol	314,593	0.84	0.06	15%	25%	93%
80	Medtronic	261,998	0.02	0.06	15%	50%	88%
23	Ashland Global Holdings	1,838,184	0.98	0.04	20%	57%	73%
49	Akzo Nobel	676,592	0.09	0.04	17%	66%	100%
90	RTX Corporation	237,092	0.05	0.04	12%	42%	52%
98	Honeywell International	200,642	1.12	0.04	26%	24%	76%
32	Griffon Corp.	1,211,789	0.04	0.03	16%	74%	100%
86	Saint-Gobain	241,687	0.71	0.03	12%	38%	51%
8	Becton Dickinson	5,490,687	0.11	0.01	10%	45%	41%
9	Edwards Lifesciences	5,405,285	<0.01	0.01	45%	97%	100%
13	Albemarle	3,446,880	0.47	0.01	17%	72%	53%
20	Shell PLC	2,353,779	2.64	0.01	16%	53%	30%
34	Howmet Aerospace	1,145,886	0.06	0.01	18%	53%	42%
50	Apollo Global Management	674,649	0.55	0.01	12%	25%	37%
55	Leggett & Platt	588,797	0.08	0.01	7%	39%	98%
58	ATI Inc.	561,616	0.59	0.01	14%	15%	66%
61	KKR & Co.	521,241	0.06	0.01	14%	46%	42%
72	Johnson & Johnson	363,867	0.03	0.01	13%	48%	63%
84	BP	252,781	0.72	0.01	18%	63%	83%
97	A.O. Smith Corp.	204,545	0.07	0.01	12%	23%	66%
100	Alfa S.A.B.	187,853	0.72	0.01	18%	46%	98%
2	Greenbrier Companies	18,417,062	0.18	<0.01	11%	31%	100%
4	Kaiser Aluminum	15,741,494	0.28		13%	16%	100%
6	Garmin	6,947,660	0.06		12%	86%	100%
7	Carpenter Technology	5,587,044	0.04		20%	58%	93%
15	Freeport-McMoRan	2,873,997	3.55	<0.01	16%	65%	97%
21	Rio Tinto	2,208,082	0.30	<0.01	8%	33%	91%
22	Terumo	2,190,748	0.06		9%	33%	100%
24	Ryerson Holding Corporation	1,749,530	<0.01		15%	69%	74%
25	Pritzker Organization	1,728,903	0.03		28%	67%	79%
27	STERIS	1,532,448	<0.01	<0.01	10%	62%	53%
28	O'Neal Industries	1,526,886	0.02		24%	59%	51%
29	NOV Inc.	1,482,627	1.72	<0.01	14%	60%	59%
30	Air Products & Chemicals	1,357,769	0.27	<0.01	11%	38%	100%
35	Ametek	1,143,673	0.20		11%	40%	58%
36	General Electric	1,093,164	0.21	<0.01	13%	37%	39%
41	PBF Energy	885,697	1.63	<0.01	13%	73%	81%
43	Snap-on	853,482	0.01		19%	17%	88%
44	Siemens Energy	851,495	<0.01		12%	47%	98%
47	Linde	772,773	0.45	<0.01	15%	49%	63%
48	Clayton Dubilier & Rice	764,712	0.25	<0.01	14%	38%	82%
51	Cenovus Energy	660,237	0.53	<0.01	21%	35%	92%
53	Nucor	610,547	0.63	<0.01	15%	38%	18%
54	Indorama Ventures	594,476	0.83	<0.01	14%	60%	73%
57	Kingspan plc	578,957	0.03	<0.01	10%	19%	100%
59	Rolls-Royce	538,887	0.01		29%	65%	98%
63	O-I Glass	468,681	0.02		14%	42%	54%
64	American Electric Power	466,961	1.33		14%	10%	63%
65	Lotte Chemical	465,115	0.05	<0.01	14%	25%	100%
66	Zimmer Biomet	453,787	0.01		14%	57%	91%
68	Ingredion	439,888	0.47		15%	45%	47%
69	Petroleos Mexicanos (Pemex)	438,869	0.28		19%	78%	100%
70	Assa Abloy	432,533	0.02	<0.01	12%	45%	86%
76	Hitachi	300,892	0.46	<0.01	11%	20%	78%
77	Baker Hughes	294,903	0.01		13%	59%	68%
79	Westinghouse Air Brake Technologies (Wabtec)	263,590	0.32		19%	41%	95%
81	Emerson Electric	259,680	0.01		12%	45%	56%
82	Targa Resources	255,117	0.70		20%	88%	98%
83	Spirit AeroSystems	255,053	0.58		20%	47%	100%
85	Graphic Packaging	250,675	6.94		26%	48%	82%
88	McWane	238,986	0.04	<0.01	24%	23%	95%
89	Michelin	238,744	0.37		15%	38%	66%
91	Gerdau	232,925	0.10	<0.01	13%	48%	51%
92	Owens Corning	218,804	1.16	<0.01	15%	47%	27%
95	International Paper	207,704	31.50	<0.01	17%	41%	21%
99	Commercial Metals Co.	199,400	0.07		22%	42%	68%

Explanatory notes (For details, see the technical notes).

This edition of the Toxic 100 Air Polluters 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 2022.

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 2022 Reporting Year, as computed by the US EPA's Risk-Screening Environmental Indicators (RSEI ver. 2.3.12) 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 2022 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, or 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 2024.  
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 Polluters. For more information on the data, see the technical notes.