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First synthesized
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Introduced as an insecticide
Paul Müller discovered its potency as insecticide. -
Period: to
WW II : U.S. government promote the use of DDT.
During world war II, DDT was used to control insect-borne diseases among American troops and civilian population. -
Spread in tropic region such as South Pacific
After the war, the use of DDT spread especially in tropical region as an anti-malaria and control against agricultural pests. -
Silent Spring
Rachel Carson published <Silent Spring>, warning the disastrous consequence that might occur from improper use of pesticide. It raised public awareness on dangers of widespread pesticide use. -
Banned in Hungary, Norway and Sweden
As the evidence showing the harmful aspect of DDT grew, few nations began to ban its use. Hungary, Norway and Sweden were one of the first ones regulating its use. -
Banned in U.S.
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SCPOP 2004 treaty
'Stockholm Convention on Persistent Organic Pollutants' formed a treaty agreeing to regulate the use of DDT. 170 nations now restrict the use of DDT to emergency situation which demands malaria outbreak.