In article ,
martin writes:
|
| http://www.chem.ox.ac.uk/mom/ddt/ddt.html
|
| "The use of DDT was banned in the United States in 1973, although it
| is still in use in some other parts of the world. The buildup of DDT
| in natural waters is a reverisble process: the EPA reported a 90%
| reduction of DDT in Lake Michigan fish by 1978 as a result of the
| ban."
|
| and
| http://www.foxnews.com/story/0,2933,55843,00.html

If I recall correctly, it was still INCREASING in some Arctic animals
well into the 1990s. While the process is reversible, the timescale
is very long.


Regards,
Nick Maclaren.