Stone said the increased use in cities of the insecticides
fipronil and dichlorvos was the main reason more urban streams were showing
pesticide levels topping EPA benchmarks.
To further its understanding of the issue, the EPA required enhanced reporting for the year 2008 from all manufacturers of EPA registered topical
pesticide products, which encompassed all classes of
pesticide active ingredients, including cyphenothrin, phenothrin, permethrin, imidacloprid, dinotefuran,
fipronil, amitraz, etofenprox, S - methoprene, pyriproxyfen, and metaflumizone.
Dr Deva Khalsa VMD, citing the EPA's
Pesticide Division, says that
fipronil enters the body and can be contained in the fat, organs, urine and feces of dogs.
Scientists released today the results of a four year worldwide integrated assessment of the effect of systemic
pesticides, primarily the neonicotinoids but also
fipronil (Twitter: #WIAlaunch).