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The biggest culprit are rivers that empty into the ocean, and with it the many chemicals used as fertilizers in agriculture as well as waste from livestock and humans. An excess of oxygen-depleting chemicals in the water can lead to hypoxia and the creation of a dead zone. [7]
Ocean warming causes water stratification, deoxygenation, and the formation of dead zones. Dead zones and OMZs are hotspots for anammox and denitrification , causing nitrogen loss (N 2 and N 2 O). Elevated atmospheric carbon dioxide acidifies seawater, decreasing pH-dependent N-cycling processes such as nitrification, and enhancing N 2 fixation .
Prior to the spill, approximately 0.1% of Gulf fish had lesions or sores. A report from the University of South Florida said that many locations showed 20% of fish with lesions, and later expeditions some as high as 50%. [35] A 2014 paper in the journal Science found that toxins released by the oil spill killed fish by causing cardiac arrest ...
Odyssey tanker shipwreck and oil spill, off the coast of Nova Scotia, November 1988; Exxon Valdez oil spill in the Prince William Sound, Alaska, March 1989; Gulf War oil spill into the Persian Gulf, January 1991; MT Haven explosion and oil spill of the coast of Italy, April 1991; ABT Summer explosion and oil spill off the coast of Angola, May 1991
When a deadly explosion destroyed BP’s Deepwater Horizon drilling rig in the Gulf of Mexico, 134 million gallons of crude erupted into the sea over the next three months — and tens of ...
For example, microplastics can be found on sandy beaches [21] and surface waters [22] as well as in the water column and deep sea sediment. Microplastics are also found within the many other types of marine particles such as dead biological material (tissue and shells) and some soil particles (blown in by wind and carried to the ocean by rivers).
Poland's prime minister said Friday that “huge amounts of chemical waste” were probably dumped intentionally into the Oder River, which runs along the border with Germany, causing ...
The South Pacific garbage patch is an area of ocean with increased levels of marine debris and plastic particle pollution, within the ocean's pelagic zone. This area is in the South Pacific Gyre , which itself spans from waters east of Australia to the South American continent, as far north as the Equator , and south until reaching the ...