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In the Gulf of Mexico, there are more than 600 natural oil seeps that leak between one and five million barrels of oil per year, equivalent to roughly 80,000 to 200,000 tonnes. [40] When a petroleum seep forms underwater it may form a peculiar type of volcano known as an asphalt volcano .
Oil is "acutely lethal" to fish - that is, it kills fish quickly, at a concentration of 4000 parts per million [25] (0.4%). The toxicity of petroleum related products threaten human health. Many compounds found in oil are highly toxic and can cause cancer (carcinogenic) as well as other diseases. [23]
An oil spill is the release of a liquid petroleum hydrocarbon into the environment, especially the marine ecosystem, due to human activity, and is a form of pollution.The term is usually given to marine oil spills, where oil is released into the ocean or coastal waters, but spills may also occur on land.
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Oil and methane "seep" out of those fissures, get diffused by sediment, and emerge over an area several hundred meters wide. [3] Methane (CH 4) is the main component of natural gas. [3] But in addition to being an important energy source for humans, methane also forms the basis of a cold seep ecosystem. [3]
This is a reverse-chronological list of oil spills that have occurred throughout the world and spill(s) that are currently ongoing. Quantities are measured in tonnes of crude oil with one tonne roughly equal to 308 US gallons, 256 Imperial gallons, 7.33 barrels, or 1165 litres.
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The Greenpoint oil spill is one of the largest oil spills ever recorded in the United States.Located around Newtown Creek in the Greenpoint neighborhood of Brooklyn, New York City, between 17 and 30 million US gallons (64,000 and 114,000 m 3) of oil and petroleum products have leaked into the soil from crude oil processing facilities over a period of several decades. [1]