ELIMINATION OF LOW-CONCENTRATION PYRETHROID PESTICIDES IN DRINKING WATER WITH A HOUSEHOLD WATER PURIFIER AND BY BOILING TREATMENT

摘要

Pyrethroid pesticides have relatively weak toxicity1 and have generally and idcly been used not only as agricultural pesticides but also as household pesticides and insecticides. However, the toxicities of pyrethroids in humans due to their long-term accumulation have not been elucidated sufficiently. On the other hand, pyrethroids have shown neuropathies in animal studies. Research has been made to eliminate or reduce high-concentration pyrethroids that were contained in agricultural products2'3. However, any sufficient study has not been performed to eliminate trace amounts or low concentrations of pyrethroid pesticides contained in drinking water. One of the media most likely to accumulate pyrethroids in humans is drinking water. Therefore, it is mandatory to establish the methodologies to remove pollutants. In this study, we examined the capability of a home water purifier and boiling treatment to eliminate 10 low-concentration pyrethroid pesticides in drinking water and assessed risks in case of an emergency.