Mercury contaminates fish and, when ingested by pregnant or nursing women, can cause neurological damage.

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They worry that lead from the bullets contaminates ecosystems and could affect people.

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That practice slows decomposition, but it also further contaminates the river.

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Hydroelectric dams are under assault for killing fish, biomass burning produces greenhouse gases just as fossils do, and geothermal power releases toxic ground and water contaminates.

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Reliance on coal, for example, contributes dramatically to increased asthma and respiratory diseases while fracking for natural gas contaminates local groundwater and vents toxic chemicals into the community air.

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While the source of water currently received by the Hubli-Dharwad Municipal Corporation is filtered, sewage leakage and the poor management of waste often contaminates drinking water on its way into the homes.

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In a full meltdown, such as the 1986 Chernobyl disaster in the Soviet Union, the rods melt completely and the release of energy causes an explosion that contaminates the surrounding area with radioactive material.

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