Effectiveness of Water Treatment Processes in Pesticide Removal

BEFORE control pests 1940, with man a limited attempted variety to control pest with a limited variety of inorganic chemicals, such as arsenic and lead compounds, and with toxic byproducts of natural plant origin, including nicotine, pyrethrum, and rotenone. Since 1940, there have been concerted efforts to prepare compounds that would be more effective against pests. The remarkable successes in controlling insects with DDT demonstrated that organic compounds could be synthesized so that they would possess unique properties that the natural products did not. The success of these efforts can be judged by the number of compounds currently used to control such diverse pests as insects, fungi, nematodes, rodents, and weeds.