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A coal-fired power plant with ash ponds. Coal ash, also known as coal combustion residuals (CCRs), is the mineral residue that remains from burning coal. Exposure to coal ash and to the toxic substances it contains may pose a health risk to workers in coal-fired power plants and residents living near coal ash disposal sites.
Coal is the largest contributor to the human-made increase of carbon dioxide in Earth's atmosphere. There are severe health effects caused by burning coal. [2] [3] [4] Worldwide 25 people die early for each terawatt hour of electricity generated by coal, around a thousand times more than nuclear or solar. [5]
Photomicrograph made with a scanning electron microscope and back-scatter detector: cross section of fly ash particles. Fly ash, flue ash, coal ash, or pulverised fuel ash (in the UK)—plurale tantum: coal combustion residuals (CCRs)—is a coal combustion product that is composed of the particulates that are driven out of coal-fired boilers together with the flue gases.
A recent EPA report revealed the risks of radioactivity from coal ash, and associated public health and cancer concerns, are much higher than previously known. Where exactly, though, remains ...
Coal ash, the waste product of burning coal, contains contaminants including arsenic and mercury, and can pose significant environmental and human health risks if it leaks into groundwater or ...
On Dec. 11, 153 environmental groups and 136 individuals called on the EPA to ban the use of coal ash as structural fill, claiming it posed a public health threat from radiation and carcinogens.
The TVA Kingston Fossil Plant coal fly ash slurry spill occurred on December 22, 2008, when an ash dike ruptured at an 84-acre (0.34 km2) solid waste containment area at the Tennessee Valley Authority's Kingston Fossil Plant in Roane County, Tennessee. 1.1 billion US gallons (4,200,000 m3) of coal fly ash slurry was released. [36]
One million gallons of coal ash-tainted water spilled at a Minnesota Power plant after a break in an underground plastic pipe, according to a company executive. The water, which was being siphoned ...