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Rio Tinto

Rank in Toxic 100 Water: 18
Surface Water releases 2014 (lbs): 11,403
POTW (sewerage plant) transfers 2014 (lbs): 10
Pounds released post-treatment 2014 (lbs): 11,406
Total Surface Water and POTW Toxic Hazard 2014: 1,318,375,544
Percentage of national total 2014 surface water and POTW hazard: 0.507%

Chemicals displayed below: (
display facilities) (display chemicals at facilities)
(Click on column headers to re-sort table: current sort is by percent of total company hazard.)
(Links on chemical names lead to Scorecard chemical health effects.)
Arsenic and arsenic compounds 533 0 533 799,500,000 60.64%
Chromium and chromium compounds 1,000 0 1,000 500,000,000 37.93%
Thallium and thallium compounds 1,000 0 1,000 14,000,000 1.06%
Antimony and antimony compounds 1,000 0 1,000 2,500,000 0.19%
Lead and lead compounds 59 0 59 1,062,000 0.08%
Copper and copper compounds 524 0 524 786,000 0.06%
Silver and silver compounds 1,000 0 1,000 200,000 0.02%
Vanadium and vanadium compounds 1,000 0 1,000 140,000 0.01%
Selenium and selenium compounds 426 0 426 85,200 0.01%
Cadmium and cadmium compounds 21 0 21 42,000 0.00%
Nickel and nickel compounds 447 0 447 40,677 0.00%
Cresol (mixed isomers) 500 0 500 10,000 0.00%
Manganese and manganese compounds 1,000 0 1,000 7,100 0.00%
Zinc and zinc compounds 393 10 396 1,307 0.00%
Nitrate compounds 2,000 0 2,000 1,260 0.00%
Mercury and mercury compounds 0 0 0 0 0.00%
Hydrochloric acid 0 0 0 0 0.00%
Ammonia 500 0 500 0 0.00%
Sulfuric acid 0 0 0 0 0.00%
Nitric acid 0 0 0 0 0.00%
Dioxin and dioxin-like compounds 0 0 0 0 0.00%

Toxic hazard: Pounds of direct releases to surface water and estimated releases from transfers to Publicly Operated Treatment Works (POTW's) reported in the US Environmental Protection Agency's Toxics Release Inventory for the year 2014, weighted by toxicity of chemicals. Weights are from the EPA's Risk-Screening Environmental Indicators project. For details, see technical notes.

Quantity of toxic surface water releases and POTW transfers: Pounds of toxic chemicals released directly to surface water at each TRI facility or transferred off-site to a POTW, without weighting for toxicity or population.

Quantity of toxic post-treatment releases: Pounds of toxic chemicals released directly to surface water plus released after treatment at POTW's.

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