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

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.