Dichlorodiphenyltrichloroethane
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WHAT | Who | When | Where
WHAT
DDT
-
D
ichloro
d
iphenyl
t
richloroethane
WHO
Zeidler
- inventor of DDT
Paul Hermann Mülle
r
-
discovered its insecticidal property
WHEN:
1874
– first made
1939
– Paul Müller’s findings
1940s
to
1
950s
(before and after World War II) – year of great use as insecticide
1960s
– the use of DDT as insecticide had been decreased
1970s
– it is banned from Sweden
1972
– severe restrictions were imposed on its use in the United States
WHERE:
Switzerland
– place where Paul Müller lives and discovered the DDT
United States and Sweden
– where it is currently banned