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Originally Posted by Ganoderma
it is quite the dilema for sure...but in countries that (although maybe not developed like australia, canada or england) are really rich and hav things like goo health programs and especially countries that claim to have eliminated ddt should not really be using this. it is still used mainly to control annoyances and crop damage.
i sure fricking hope my babies dont come out buggered from living here  .....don't think its THAT common here though. |
In Australia we don't have to worry about Maleria. (We do have Ross river Fever; carried by mosquitoes) So we don't have to watch children die of malaria which might change your opinion of whether DDT should be used.
My contention is that developed counties should fork out the extra money to buy safer pesticides (like neem and pyrethrum) and traps;- as DDT spraying in Africa effects the whole planet.
I am amazed it is still used in Malaysia. Of course it is only one of many chlorinated hydrocarbons.
One problem rarely mentioned it that CHs spread out and float on the top micron of the water and interfere with the health and reproductive capacity of photo plankton -our major source of Oxygen.
This is interesting on phytoplankton
http://www.deh.gov.au/coasts/publica...oplankton.html
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Sensitivity of phytoplankton to chemical pollutants
Chemical pollutants, including both organic and inorganic compounds, can cause selective inhibition of phytoplankton species, with wide ranging effects at higher trophic levels.
Chlorinated organics, including DDT, dieldrin, chlordane, polychlorinated biphenyls (PCBs) and chlorophenols, are of particular concern because they readily absorb to particulates and sediments, are resistant to degradation and have the potential to bioaccumulate. PCB levels (1-10 mg per l) have been reported in Botany Bay and Port Phillip Bay, and may depress the growth of sensitive diatoms (Fisher & Wurster 1973). . .
Some of the chlorophenolic compounds, such as the more substituted chlorocatechols, are toxic to freshwater algae and marine diatoms (Kuivasniemi, Eloranta & Knuutinen 1985), with chlorate being particularly toxic to phytoplankton.
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