PERI: Toxic 100 Index

Tesoro Corp.

Rank in Toxic 100: 70
Rank among all TRI companies: 201
Air releases 2010 (lbs): 1,655,999
Incineration transfers 2010 (lbs): 6,725
Total Air and Incineration Toxic Score 2010: 212,769
Percentage of national total 2010 toxic air and incineration score: 0.055%
EJ: Poor Share: 16.8%
EJ: Minority Share: 71.8%

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Chemical	Air releases (lbs)	Incineration transfers (lbs)	Toxic Score (quantity x exposure x toxicity x population)	Percent of total company score	EJ: Poor Share	EJ: Minority Share	Rv
1,2,4-Trimethylbenzene	13,918	240	499	0.23%	17.8%	72.8%
1,3-Butadiene	835	0	23,575	11.08%	19.9%	83.1%
Ammonia	518,585	2	1,685	0.79%	15.5%	72.4%
Anthracene	910	7	0	0.00%	8.1%	8.3%
Benzene	43,260	178	71,684	33.69%	16.7%	69.6%
Benzo(g,h,i)perylene	6	5	0	0.00%	0.0%	0.0%
Biphenyl	333	0	0	0.00%	12.8%	21.9%
Carbon disulfide	1,918	0	2	0.00%	15.4%	78.8%
Carbonyl sulfide	20,517	0	746	0.35%	15.2%	77.2%
Chlorine dioxide	8	0	2	0.00%	8.0%	7.2%
Chromium and chromium compounds	43	0	1,609	0.76%	9.8%	12.4%
Copper and copper compounds	44	0	0	0.00%	8.1%	76.7%
Cresol (mixed isomers)	619	0	0	0.00%	19.3%	81.7%
Cumene	1,227	2	1	0.00%	15.8%	68.6%
Cyclohexane	34,315	20	1	0.00%	16.3%	61.0%
Diethanolamine	1,788	88	887	0.42%	19.8%	87.5%
Ethylbenzene	14,536	458	792	0.37%	17.1%	68.8%
Ethylene	29,049	0	1	0.00%	17.5%	71.2%
Glycol Ethers	2,201	0	6	0.00%	8.0%	7.2%
Hydrochloric acid	12,382	0	801	0.38%	17.3%	79.8%
Hydrogen fluoride	291,300	0	455	0.21%	8.7%	7.6%
Lead and lead compounds	332	0	382	0.18%	15.8%	69.0%
Mercury and mercury compounds	67	0	39	0.02%	15.6%	58.8%
Methanol	6,192	0	0	0.00%	14.6%	45.6%
Molybdenum trioxide	98	0	307	0.14%	16.5%	75.8%
n-Hexane	126,038	92	41	0.02%	17.2%	71.9%
Naphthalene	6,034	74	2,109	0.99%	15.8%	58.3%
Nickel and nickel compounds	2,474	0	76,865	36.13%	15.8%	76.8%
Phenanthrene	263	52	0	0.00%	0.0%	0.0%
Phenol	12,098	3	0	0.00%	0.0%	0.0%
Polycyclic aromatic compounds	197	112	18,501	8.70%	20.8%	75.8%
Propylene (Propene)	69,565	0	4	0.00%	16.5%	58.8%
Styrene	10	0	0	0.00%	20.1%	87.1%
Sulfuric acid	272,764	0	10,757	5.06%	12.4%	25.9%
Tetrachloroethylene (Perchloroethylene)	1,204	610	769	0.36%	14.9%	56.6%
Toluene	93,119	1,300	5	0.00%	17.3%	71.4%
Vanadium and vanadium compounds	417	0	0	0.00%	12.3%	19.4%
Xylene (mixed isomers)	75,995	3,483	174	0.08%	17.4%	69.7%
Zinc and zinc compounds	1,337	0	67	0.03%	17.7%	81.1%

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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