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The primary dispersant used were Corexit 9527 and 9500, which were controversial due to toxicity. In 2012, a study found that Corexit made the oil up to 52 times more toxic than oil alone, [12] and that the dispersant's emulsifying effect makes oil droplets more bio-available to plankton. [13]
Corexit 9500 was designed to replace Corexit 9527. In 2002, Corexit 9527 and Corexit 9500 were the only two chemical dispersants stockpiled in large quantities in the U.S.A. [ 15 ] An estimated 2.5 million gallons of chemicals were used in response to the supertanker SS Torrey Canyon oil spill in the United Kingdom in 1967 . [ 16 ]
Acute toxicity symptoms have been reported and the study of long-term medical and psychological effects is ongoing. [1] As the largest marine oil spill in history, the potential for physical, psychological, and socioeconomic difficulties and long term effects remain unknown.
An oil containment boom deployed by the U.S. Navy surrounds New Harbor Island, Louisiana. The response included deploying many miles of containment boom, whose purpose is to either corral the oil, or to block it from a marsh, mangrove, shrimp, crab, and/or oyster ranch, or other ecologically sensitive areas.
Location: Macondo Prospect (Mississippi Canyon Block 252), in the North-central Gulf of Mexico, United States (south of Louisiana): Coordinates: 1]: Date: 20 April – 19 September 2010 (4 months, 4 weeks and 2 days): Cause; Cause: Wellhead blowout: Casualties: 11 people killed 17 people injured: Operator: Transocean under contract for BP [2]: Spill characteristics; Volume: 4.9 million barrels ...
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A toxic heavy metal is a common but misleading term for a metal-like element noted for its potential toxicity. [4] Not all heavy metals are toxic and some toxic metals are not heavy. [ 5 ] Elements often discussed as toxic include cadmium , mercury and lead , [ 6 ] all of which appear in the World Health Organization 's list of 10 chemicals of ...
Drug overdose deaths in the US per 100,000 people by state. [1] [2] A two milligram dose of fentanyl powder (on pencil tip) is a lethal amount for most people.[3]The United States Centers for Disease Control and Prevention (CDC) has data on drug overdose death rates and totals.