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Pollutants Found In House Dust Increase Pesticide's Toxicity

Date:
April 29, 1999
Source:
Johns Hopkins School Of Public Health
Summary:
Four pollutants found in house dust add to the ability of a common household insecticide to inhibit an enzyme important in neurologic function in humans. Building on substantial evidence that the insecticide chlorpyrifos inhibits cholinesterase, a biochemical critical for nerve cell transmission, researchers at the Johns Hopkins School of Public Health found that pollutants in house dust increase this adverse effect in studies with purified enzyme.

Four pollutants found in house dust add to the ability of a common household insecticide to inhibit an enzyme important in neurologic function in humans. Building on substantial evidence that the insecticide chlorpyrifos inhibits cholinesterase, a biochemical critical for nerve cell transmission, researchers at the Johns Hopkins School of Public Health found that pollutants in house dust increase this adverse effect in studies with purified enzyme. The four pollutants, polycyclic aromatic hydrocarbons (PAHs) that are among the most abundant components of house dust, are pyrene, benzo(a)pyrene, fluoranthene, and anthracene. The study appeared in the April 1999 issue of Toxicology Letters.


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The above story is based on materials provided by Johns Hopkins School Of Public Health. Note: Materials may be edited for content and length.


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Johns Hopkins School Of Public Health. "Pollutants Found In House Dust Increase Pesticide's Toxicity." ScienceDaily. ScienceDaily, 29 April 1999. <www.sciencedaily.com/releases/1999/04/990429054148.htm>.
Johns Hopkins School Of Public Health. (1999, April 29). Pollutants Found In House Dust Increase Pesticide's Toxicity. ScienceDaily. Retrieved April 18, 2014 from www.sciencedaily.com/releases/1999/04/990429054148.htm
Johns Hopkins School Of Public Health. "Pollutants Found In House Dust Increase Pesticide's Toxicity." ScienceDaily. www.sciencedaily.com/releases/1999/04/990429054148.htm (accessed April 18, 2014).

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