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

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.