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From: "fernando deguilla" <fdeguilla@ho*.co*>
To: techdiver@aquanaut.com
Subject: Malathion at Ginnie
Date: Thu, 12 Oct 2000 00:14:30 GMT
We arrived at Ginnie Springs at around 9 am Thursday 10/5/00.  My buddy, 
Scuba Steve, noticed right away that there wasn't as much mosquitoes as at 
Peacock three day before.  We heard in the distance a noise coming from a 
leafblower, then noticed a cloud coming from it as a family of three 
strolled by.  I commented to my buddy that this was the answer as to why.  
As the two guys spraying got closer and stopped to make a refill, I asked 
them if that was pesticide they were spraying.  One of them answered 
malathion.  As I made a quick retreat to my vehicle, I commented that the 
stuff was deadly.  The Ginnie employee commented back "think I'd be spraying 
this stuff if it was deadly".  Meanwhile when they spray the same stuff in 
New York, they spray it late in the evening and they recomend for everyone 
to go indoors and close the windows.  During ground spraying, the people 
spraying wear respirators.  The guys at Ginnie were spraying it like they 
were spraying water.

This is the same stuff that was linked to the great lobster die off in Long 
Island Sound.

Here�s a piece from an article I read from Discover Magazine July 2000 
�Silent Summer"  You can read the whole article at 
http://www.findarticles.com/cf_0/m1511/7_21/63035798/p1/article.jhtml

<< 1939 Swiss chemist Paul Hermann Muller discovers the toxic effects of
DDT 
on insects. In the decades that follow, authorities spray more than 4 
billion pounds of the insecticide worldwide, including on New York's Jones 
Beach. 1950 Chemists at the American Cyanamid Company synthesize the first 
batch of malathion, one of a new class of organophosphate pesticides When 
exposed to oxygen, malathion turns into malaoxon, which kills insects by 
inhibiting an enzyme, acetylcholinesterase, that breaks down acetylcholine. 
Small quantities of malaoxon seem to be harmless to people, but high doses 
can cause headaches cramps, frothing of the mouth and nose, muscle spasms, 
and coma. When stored improperly (some labels suggest temperatures no higher 
than 77 degrees Fahrenheit), malathion can also break down into 
isomalathion, estimated to be 95 times as toxic.




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