ufficient
scientific evidence exists of DDT's danger to humans and animals
to justify a global ban on the insecticide, according to a recent
World Wildlife Fund report. The report was released to coincide
with a week-long gathering in Nairobi of delegates from more
than 100 nations to negotiate a treaty banning 12 toxic substances,
including DDT.
"The
report illustrates the persistence and pervasiveness of chemicals
such as DDT which can be sprayed in a village in Africa and end
up in the fat of polar bears in the Arctic,'' the Washington,
D.C.-based organization said.
The
report summarizes current research on DDT and its most popular
alternative, synthetic pyrethroids. The treaty would ban the
so-called "dirty dozen" toxic chemicals, called persistent
organic pollutants, which include DDT, dioxin and PCBs. The highly
toxic chemicals break down extremely slowly.
"DDT
is such a potent chemical that as long as it is used anywhere
in the world, nobody is safe,'' Clifton Curtis, director of WWF's
Global Toxic Initiative, told reporters at the headquarters of
the U.N. Environment Program outside Nairobi.
Even
though DDT is banned in 34 countries and severely restricted
in 34 others, it is still endorsed by World Health Organization
for use in the control of malaria-carrying mosquitoes.
"There
is no longer a question about whether to DDT should be banned,
only how soon it can happen while still ensuring developing countries
access to safe, affordable alternative malaria control'' Curtis
said.
The
report said although WHO recommends the use of DDT indoors, as
much as 82 percent of DDT applied indoors escapes outdoors, where
it has the potential to damage human health and the environment.
Curtis
said recent WWF findings show that malaria-bearing mosquitoes
have developed resistance to DDT.
Environmentalists
and the chemical industry are at odds over whether to place a
total ban on the 12 chemicals. The conference is the second of
five scheduled by the United Nations. The first negotiating session
in Montreal in 1998 was primarily organizational.
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