The between soil n in the ground is top of the zone of saturation called the water-table. The sum total of environmental conditions of a specific place that is occupied by an organism, a population or a community. A subset of solid waste, which can create a risk to the safety or health of people or the environment. Any solid waste that is ignitable, explosive, reactive or toxic and which may pose a substantial or potential hazard to human health and safety or to the environment when improperly managed. Reactive refers to the ability to enter into a violent chemical reaction that may involve explosion or fumes.
Heavy metals See toxic metals.
Hydrocarbons Any of a large class of organic compounds containing only carbon and hydrogen. Crude oil and natural gas are often referred to as hydrocarbons or hydrocarbon fuels. A phenomenon occurring in Bangladesh, where marine salt water flows into rivers and deprives people of fresh water, ruins the aquatic habitat and fishing, and destroys water-dependent industrial machinery and other intakes. Leachate The liquid, usually rainwater, that percolates through a landfill and which frequently is contaminated by materials dissolved from the waste in the landfill. Ocean dumping The use of various techniques for disposing of hazardous wastes and other wastes in open seas.