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• v  make impure
• v  make radioactive by adding radioactive material
  Don't drink the water--it's contaminated

• As a result, many of the agricultural pollutants that contaminate drinking water sources are often subject only to state or county regulations.
• Critics of Ventria's plans are concerned that the gene-altered rice could contaminate regular rice crops and pose a health risk to consumers, scaring off buyers.
• Environmentalists have long argued that coal ash, which can contaminate groundwater and poison aquatic environments, should be stored in lined landfills.

• pollute
• foul

• decontaminate

News & Articles

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• Water Management Biggest Risk to China Shale Gas, Bernstein Says
  Water management is the biggest challenge to shale gas development in China amid concern that extraction of the fuel will contaminate drinking supplies, according to Sanford C. Bernstein & Co.
  June 14, 2013 - Bloomberg

Quotes

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• Michael Grade in Broadcastnow
  Grade concluded: "Our audiences are savvier than the Government thinks. It is simply not in our interest to contaminate" programmes with product placement which would irritate them and prompt them to switch over.
• Stephen Harper in Ottawa Citizen
  We cannot let a single disagreement contaminate and undermine all the other issues,said Harper.
• Angela Merkel in BusinessWeek
  Immediate assistance is the last way to guarantee the stability of the euro area altogether,Merkel told lawmakers in Berlin today. "It must go forward so as not to unleash a chain reaction onto international markets that would contaminate...