TEK IMAGE / SCIENCE PHOTO LIBRARY TEK IMAGE / SCIENCE PHOTO LIBRARY
Pesticide pollution control. Scientist sets up a gel chromatography experiment to check for pesticide pollutants in food. The gel chromatograph can find minute traces of pesticide chemicals in food or drink. Pesticides are widely used in agriculture to deter pests. Chemicals in pesticides can persist in the environment and contaminate food chains. Some are poisonous and have been implicated in cancers. Effective monitoring can be used to check the safety of food and drink for consumption.
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