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Try
for a very dry and technical
evaluation which concludes
"Permethrin is not classifiable as to its carcinogenicity
to humans (Group 3)."
Which means....
"
This category is used most commonly for agents, mixtures and
exposure circumstances for which the evidence of carcinogenicity is
inadequate in humans and inadequate or limited in experimental
animals.
Exceptionally, agents (mixtures) for which the evidence of
carcinogenicity is inadequate in humans but sufficient in
experimental animals may be placed in this category when there is strong
evidence that the mechanism of carcinogenicity in experimental animals does not
operate in humans.
Agents, mixtures and exposure circumstances that do not fall
into any other group are also placed in this category. "
from: http://www.inchem.org/documents/iarc/monoeval/eval.html
As for 'safe concentrations' remember,
"All substances are poisons; there is none which is not a
poison.
The right dose differentiates a poison?." Paracelsus
(1493-1541)"
Most domestic products seem to be at around 2.5 - 5/0 g/kg
(roughly the same as ml/L).
www.apvma.gov.au/ may have some more
information.
In the end it comes down to the trade off between malaria,
dengue etc and possible health effects of permethryn.
Cheers
Graham Turner
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