PERI: Toxic 100 Index

AK Steel Holding

Rank in Toxic 100: 61
Rank among all TRI companies: 166
Air releases 2010 (lbs): 216,198
Incineration transfers 2010 (lbs): 0
Total Air and Incineration Toxic Score 2010: 277,446
Percentage of national total 2010 toxic air and incineration score: 0.072%
EJ: Poor Share: 16.6%
EJ: Minority Share: 20.6%

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Chemical	Air releases (lbs)	Incineration transfers (lbs)	Toxicity Weight	Toxic Score (quantity x exposure x toxicity x population)	Percent of total company score	EJ: Poor Share	EJ: Near Poor Share	EJ: Minority Share	EJ: Black Share	EJ: Hispanic Share	Rv
Chromium and chromium compounds	5,747	0	43,000,000	199,885	72.04%	15.7%	36.3%	23.8%	17.6%	2.5%
Manganese and manganese compounds	10,031	0	70,000	34,574	12.46%	19.3%	43.0%	12.1%	6.0%	1.4%
Benzene	18,441	0	28,000	25,390	9.15%	19.1%	42.2%	13.5%	7.0%	1.7%
Nickel and nickel compounds	592	0	930,000	10,893	3.93%	15.7%	35.6%	17.1%	10.9%	2.2%
Polycyclic aromatic compounds	49	0	1,300,000	2,836	1.02%	19.0%	42.7%	14.4%	7.5%	1.8%
Lead and lead compounds	3,057	0	18,000	2,709	0.98%	19.6%	43.7%	12.3%	6.3%	1.4%
Naphthalene	444	0	12,000	353	0.13%	18.3%	40.7%	15.5%	8.5%	2.0%
Hydrochloric acid	38,142	0	180	345	0.12%	16.5%	36.4%	18.2%	11.0%	2.4%
Zinc and zinc compounds	41,157	0	100	127	0.05%	17.2%	39.3%	15.4%	9.8%	1.7%
Mercury and mercury compounds	160	0	12,000	112	0.04%	17.4%	38.7%	16.3%	9.4%	2.2%
Hydrogen fluoride	25,651	0	250	86	0.03%	15.5%	35.9%	9.5%	4.5%	1.7%
Nitric acid	35,000	0	270	60	0.02%	19.6%	44.4%	8.8%	3.8%	1.3%
Ammonia	19,850	0	35	26	0.01%	19.0%	42.1%	13.0%	6.5%	1.7%
Aluminum (fume or dust)	523	0	700	14	0.00%	20.1%	44.2%	11.2%	5.1%	1.3%
Glycol Ethers	9,400	0	180	13	0.00%	20.1%	45.8%	10.3%	4.7%	1.3%
Copper and copper compounds	340	0	1,500	11	0.00%	14.5%	34.3%	22.2%	16.9%	2.2%
Molybdenum trioxide	35	0	15,000	9	0.00%	11.4%	27.8%	6.9%	3.3%	1.1%
1,2,4-Trimethylbenzene	33	0	580	1	0.00%	20.4%	45.5%	10.6%	4.4%	1.2%
Ethylbenzene	19	0	890	1	0.00%	20.5%	45.4%	10.3%	4.3%	1.2%
Cyanide compounds	9	0	4,400	1	0.00%	20.7%	44.8%	9.3%	4.0%	1.1%
Xylene (mixed isomers)	829	0	35	0	0.00%	21.0%	43.7%	7.6%	3.4%	1.0%
Ethylene	3,604	0	1	0	0.00%	17.3%	38.3%	17.9%	10.5%	2.4%
Toluene	3,039	0	1	0	0.00%	19.7%	42.9%	11.8%	5.9%	1.5%
Vanadium and vanadium compounds	5	0	140	0	0.00%	11.5%	28.0%	7.3%	3.6%	1.2%
Anthracene	9	0	3	0	0.00%	18.6%	41.2%	15.1%	8.1%	2.0%
Phenanthrene	32	0	0	0	0.00%	0.0%	0.0%	0.0%	0.0%	0.0%

For explanations of most columns above, including the EJ Shares, see the technical notes.

For the Rv (revisions) column,
* indicates that the record contains one or more chemicals at facilities whose TRI air releases or incineration transfers for 2010 were revised downwards since 2010, and whose hazard and score have been adjusted accordingly.
** indicates one or more chemicals at facilities whose quantities were revised upwards, or both upwards and downwards. Chemicals revised upwards had their pounds adjusted, but not their score.
*** indicates that the RSEI microdata do not match the public RSEI data.

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