Finding F-1430

“The highest measured chlorpyrifos indoor air concentrations in homes H1–H5 were between days 0 and 2 postapplication (mean = 315 ng/m3), which were significantly greater than preapplication levels (mean = 18 ng/m3; p = 0.002).”

Valli Chlorpyrifos accumulation patterns for child-accessible surfaces and objects and urinary… (2005). Environmental health perspectives. Page 4. CKB 6370

Structure

Factor: Insecticides
Setting: home, US
Study design: Children's Post-Pesticide Application Exposure Study: chlorpyrifos measured in the indoor air, on surfaces and on children's plush toys in ten homes before a professional crack-and-crevice application and over the two weeks after it, with the absorbed dose of the children estimated (class 3)
Effect: mean 315
Caveat: five homes after a professional application, not everyday levels

A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.