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Water pollution — Acid rain • Agricultural runoff • Algal bloom • Environmental impact of the coal industry • Environmental impact of hydraulic fracturing • Eutrophication • Fish kill • Groundwater pollution • Groundwater recharge • Marine debris • Marine pollution • Mercury in fish • Microplastics • Nutrient ...
Mushroom-shaped cloud and water column from the underwater nuclear explosion of July 25, 1946, which was part of Operation Crossroads November 1951 nuclear test at the Nevada Test Site, from Operation Buster, with a yield of 21 kilotons. It was the first U.S. nuclear field exercise conducted on land; troops shown are 6 mi (9.7 km) from the blast.
An example is zinc oxide, a common paint pigment, which is extremely toxic to aquatic life. [citation needed] Toxicity or other hazards do not imply an environmental hazard, because elimination by sunlight , water or organisms (biological elimination) neutralizes many reactive or poisonous substances. Persistence towards these elimination ...
Water pollution (or aquatic pollution) is the contamination of water bodies, with a negative impact on their uses. [1]: 6 It is usually a result of human activities. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. Water pollution results when contaminants mix with these water bodies. Contaminants can come from ...
Most environmental scenarios involve one or more of the following: Holocene extinction event, [39] scarcity of water that could lead to approximately half the Earth's population being without safe drinking water, pollinator decline, overfishing, massive deforestation, desertification, climate change, or massive water pollution episodes.
In 2017, almost 22 million Americans drank from water systems that were in violation of public health standards. [64] Globally, over 2 billion people drink feces-contaminated water, which poses the greatest threat to drinking water safety. [65] Contaminated drinking water could transmit diseases like cholera, dysentery, typhoid, diarrhea and ...
Drought, a prolonged water supply shortage, often caused by persistent lack of, or much reduced, rainfall; Floods. Flash flood; Rainstorm; Red rain in Kerala (for related phenomena, see Blood rain) Monsoon
Water scarcity can take several forms. One is a failure to meet demand for water, partially or totally. Other examples are economic competition for water quantity or quality, disputes between users, irreversible depletion of groundwater, and negative impacts on the environment.