Pollution of the air and water is an environmental danger, as we saw earlier, but so is pollution of the ground from hazardous waste. Hazardous wastes are unwanted materials or byproducts that are potentially toxic. If discarded improperly, they enter the ground and/or bodies of water and eventually make their way into the bodies of humans and other animals and/or harm natural vegetation.
Love Canal, an area in Niagara Falls, New York, was the site of chemical dumping that led to many birth defects and other health problems.
Image courtesy of US Environmental Protection Agency, http://commons.wikimedia.org/wiki/File:Love_Canal_protest.jpg.
Two major sources of hazardous waste exist: (1) commercial products such as pesticides, cleaning fluids, and certain paints, batteries, and electronics and (2) byproducts of industrial operations such as solvents and wastewater. Hazardous waste enters the environment through the careless actions of homeowners and other consumers, and also through the careless actions of major manufacturing corporations. It can cause birth defects, various chronic illnesses and conditions, and eventual death.
Sometimes companies have dumped so much hazardous waste into a specific location that they create hazardous waste sites. These sites are defined as parcels of land and water that have been contaminated by the dumping of dangerous chemicals into the ground by factories and other industrial operations. The most famous (or rather, infamous) hazardous waste site in the United States is undoubtedly Love Canal, an area in a corner of Niagara Falls, New York. During the 1940s and 1950s, a chemical company dumped 20,000 tons of toxic chemicals into the canal and then filled it in with dirt and sold it for development to the local school board. A school and more than eight hundred homes, many of them low income, were later built just near the site. The chemicals eventually leached into the groundwater, yards, and basements of the homes, reportedly causing birth defects and other health problems. (See .)
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