Remediating Indoor Pesticide Contamination from Improper Pest Control Treatments: Persistence and Decontamination Studies

JOURNAL OF HAZARDOUS MATERIALS

卷:397

Article

Oudejans, Lukas¹  Mysz, Amy²  Snyder, Emily Gibb¹  Wyrzykowska-Ceradini, Barbara³  Nardin, Joshua³  Tabor, Dennis⁴  Starr, James⁵  Stout, Daniel, II⁵  Lemieux, Paul¹ 

[1] US EPA, Off Res & Dev, Ctr Environm Solut & Emergency Response, Homeland Secur & Mat Management Div, 109 TW Alexander Dr, Res Triangle Pk, NC 27709 USA

[2] US EPA, Reg 5,77 W Jackson Blvd, Chicago, IL USA

[3] Jacobs Technol Inc, 600 William Northern Blvd, Tullahoma, TN 37388 USA

[4] US EPA, Off Res & Dev, Ctr Environm Measurement & Modeling, Air Methods & Characterisat Div, 109 TW Alexander Dr, Res Triangle Pk, NC USA

[5] US EPA, Off Res & Dev, Ctr Environm Measurement & Modeling, Watershed & Ecosyst Characterisat Div, 109 TW Alexander Dr, Res Triangle Pk, NC USA

关键词: pesticide;    misuse;    decontamination;    cleanup;    persistence;   

DOI  :  10.1016/j.jhazmat.2020.122743

来源: Elsevier

【 摘 要 】

The improper and excessive use of pesticides in indoor environments can result in adverse human health effects, sometimes necessitating decontamination of residential or commercial buildings. A lack of information on effective approaches to remediate pesticide residues prompted the decontamination and persistence studies described in this study. Decontamination studies evaluated the effectiveness of liquid-based surface decontaminants against pesticides on indoor surfaces. Building materials were contaminated with 25-2,400 mu g/100cm(2) of the pesticides malathion, carbaryl, fipronil, deltamethrin, and permethrin. Decontaminants included both off-the-shelf and specialized solutions representing various chemistries. Pesticides included in this study were found to be highly persistent in a dark indoor environment with surface concentrations virtually unchanged after 140 days. Indoor light conditions degraded some of the pesticides, but estimated half-lives exceeded the study period. Decontamination efficacy results indicated that the application of household bleach or a hydrogen peroxide-based decontaminant offered the highest efficacy, reducing malathion, fipronil, and deltamethrin by > 94-99% on some surfaces. Bleach effectively degraded permethrin ( > 94%), but not carbaryl ( < 70%) while the hydrogen peroxide containing products degraded carbaryl (>71-99%) but not permethrin (<54%). These results will inform responders, the general public and public health officials on potential decontamination solutions to remediate indoor surfaces.

【 授权许可】

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