I have been following the conversation re: DDT. I could easily be wrong, but I seem to recall (don't make me try to remember where) that DDT was no longer 100% banned, but allowed for limited applications. Help me out here.
Larry Johnson Springville, Utah >>> "Henk Verhaar" <[EMAIL PROTECTED]> 10/10/2006 1:49 PM >>> On 10 Oct 2006, at 18:48, Jimmy D. Moore wrote: > Jimi, > > You sure it was DDT? The reason I ask is that according to > ( http://www.3dchem.com/molecules.asp?ID=90 ) 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. If it was DDT > in Brantley Lake, somebody could be in "deep kimshee". > > JIMMY D > > Desert Eagle wrote: > >> I just heard on our local news that the State Game and Fish have >> put a >> "Mandatory" catch and release on all fish caught in Brantley Lake, >> (4 miles >> from me). The reason, elevated amounts of DDT found in them. >> Evidently it >> got there from runoff from fields upstream with the heavy rains >> earlier >> this year. Wonder how else it will effect the lake? It is just >> starting to >> get real nice after the Golden Algae almost wiped it out about 3 >> years ago. And in fact, there would be no justifiable basis for mandatory catch and release of DDT-contaminated fish. DDT is relatively harmless to humans -- it is reasonably selective to insects, and has a secondary, unanticipated target in the eggshell production organs in birds; the reason it was banned in the first place. Indoor use is safe, and so is direct use on humans, which was done routinely when it was used as a delousing agent. If the levels found in fish are indeed high enough to cause JUSTIFIED concern, someone could be in deep kimshee indeed, since that would only be possible due to a recent use/contamination event at extreme levels. ==========================Heisenberg was right!======================== | Dr. Henk J.M. Verhaar | | | Environmental Fate and Ecotoxicology Specialist | | Fly Tier | web: www.xs4all.nl/~flyrod | | Stichts End 17 | e-mail: [EMAIL PROTECTED] | | NL-1244 PK Ankeveen | phone: +31 35 656 2128 | | the Netherlands | ICQ: 15727113 | ==========================Uncertainty happens!=========================
