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DDT dates



Hi,
   Can anyone help me with these questions:

    Has DDT production ever been banned in U.S. or Canada?
    Is it still produced in U.S. and shipped overseas? If so, where is it
made?

    Year DDT use was banned in:
     Michigan
     U.S.
     Other Great Lakes states
     Canadian federal and provinical governments
 
     Thanks,
      Dave Poulson
      Booth Newspapers