IMMUNOLOGY

Detailed explanation-1: -Landfills can produce objectionable odors and landfill gas can move through soil and collect in nearby buildings. Of the gases produced in landfills, ammonia, sulfides, methane, and carbon dioxide are of most concern. Ammonia and hydrogen sulfide are responsible for most of the odors at landfills.

Detailed explanation-2: -Landfills directly render the soil and land where it is located unusable. It also destroys the adjacent soil and land area because the toxic chemicals spread over the surrounding soil with time. The upper layer of the soil is damaged, distorting soil fertility and activity and affecting plant life.

Detailed explanation-3: -While landfills are required to have plastic or clay lining by federal regulation, these liners tend to have leaks. This can result in leachate, a liquid produced by landfill sites, contaminating nearby water sources, further damaging ecosystems. Leachate can contain high levels of ammonia.

Detailed explanation-4: -Almost 2/3rd of landfill waste is biodegradable. This waste rots and decomposes, and produces harmful gases (CO2 and Methane) which are both greenhouse gases and contribute to global warming. Landfills also pollute the local environment, including the water and the soil.

Detailed explanation-5: -In 1988, the EPA stated all landfills will eventually. leak. That means that runoff from. landfills, carrying with it toxic chemicals from our waste, ends up in our water supplies. Many communities surrounding landfills have had their drinking water contaminated by leaking landfills.

Detailed explanation-6: -Masses of municipal waste placed in trenches or in soil encased mounds decay in a soil environment. Soil serves as a lining for the site, as cover, as a physical and chemical renovator, and as a medium for restoring vegetation and normal land use.