None of the pesticides currently authorized for use on food in international The exposure occurs, such as by swallowing, inhaling or direct contact with the Toxicity can also depend on the route by which
The sameĬhemical can have different effects at different doses, that is, the amount of chemical ForĮxample, insecticides tend to be more toxic to humans than herbicides. The toxicity of a pesticide depends on its function and other factors. Restrict the production and use of persistent organic pollutants. Stockholm Convention, an international treaty that aims to eliminate or These chemicals have been banned by countries which signed the 2001 Many of the older, less costly (off-patent) pesticides, such asĭichlorodiphenyltrichloroethane (DDT) and lindane, can remain for years in soilĪnd water. Each pesticide has different properties and There are more than 1000 pesticides used around the world to ensure food is
To protect food consumers from the adverse effects of pesticides WHO reviews evidence and develops internationally-accepted maximum residue limits. This is particularly important in countries that face food shortages. They protect or increase yields and may increase the number of times each year a crop can be grown on the same land. 
Pesticides play a significant role in food production. People who face the greatest health risks from exposure to pesticides are those who come into contact with them at work, in their home or garden. Many of these chemicals have been banned from agricultural use in developed countries, but they are still used in many developing countries. Some of the older, less costly pesticides can remain for years in soil and water. Pesticides are potentially toxic to humans and can have both acute and chronic health effects, depending on the quantity and ways in which a person is exposed. Pesticides are used to protect crops against insects, weeds, fungi and other pests.
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