Today land pollution has reached an alarming rate in most countries of the world. Land is being polluted mainly due to human activities.
Land loses its natural quality and fertility when it comes into contact with certain chemical substances, poisonous metals, industrial wastes, radioactive wastes, urban wastes, etc. Agricultural pesticides, land filling and increasing scale of deforestation, application of chemical fertilisers, irrigation, insecticides, etc. for higher agricultural production also pollute land. For all these reasons, land pollution in most countries has become a major problem today and a lot of measures are being undertaken to rectify the problems. Use of underground water in the fields degrades the natural soil quality. Application of insecticides and weedicides in the fields destroys useful life forms with the harmful ones and hence polluting the land by changing its natural properties. Industrialisation and Industrial wastes mix with the soil to pollute it, and improper mining of coal and petroleum also pollutes the land.