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<p>Pesticide sprayings on crops can contaminate nearby homes, yet factors driving pesticide penetration indoors remain poorly understood. Our objective was to study the influence of factors related to air exchange and occupants track-in on agricultural pesticide surface loadings (SLs) measured in homes near vineyards. Indoor surface wipes were collected in 31 homes near vineyards during the peak pesticide application season in 2020 and 2021 and analyzed via LC/MS/MS or GC/MS/MS. Questionnaire data provided information on air exchange and track-in factors. Linear mixed models assessed their effects on SLs of seven fungicides across all surfaces (<i>n</i> = 667) and stratified by recently cleaned surfaces (<i>n</i> = 217), floors (<i>n</i> = 105), and high dusty surfaces (<i>n</i> = 130). Daytime airing reduced floor SLs by 14–28%, depending on the pesticide, but increased SLs by up to 38% on high surfaces. Nighttime airing was associated with a 20–65% increase in recently cleaned surface SLs. Double-flow ventilation increased high surface SLs by 21–126%, while ventilation grids reduced contamination, especially on floors (up to 51%). Home insulation tended to raise SLs. Pets and gardening were the main sources of pesticide track-in, contributing to an 11–87% increase in floor SLs. However, pets substantially reduced SLs on high surfaces. Direct yard access increased SLs in rooms by 5–10%. Room occupancy and outdoor activities showed mixed effects depending on the surface, whereas shoe removal and doormat use showed no significant impact. While ventilation effects remain complex to interpret for prevention, track-in findings suggest hygiene measures could help reduce indoor pesticide SLs.</p> Graphical Abstract <p></p>

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From Fields to Homes: How Agricultural Pesticides Contaminate Residential Environments? Findings from the PESTIPREV Study, France

  • 期刊论文

  • 发表日期：

    2025年11月19日

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  • Raphaëlle Teysseire,
  • Cécile Proust-Lima,
  • Marie-Hélène Devier,
  • Emmanuelle Barron,
  • Hélène Budzinski,
  • Carole Bedos,
  • Isabelle Baldi,
  • Fleur Delva

摘要

Pesticide sprayings on crops can contaminate nearby homes, yet factors driving pesticide penetration indoors remain poorly understood. Our objective was to study the influence of factors related to air exchange and occupants track-in on agricultural pesticide surface loadings (SLs) measured in homes near vineyards. Indoor surface wipes were collected in 31 homes near vineyards during the peak pesticide application season in 2020 and 2021 and analyzed via LC/MS/MS or GC/MS/MS. Questionnaire data provided information on air exchange and track-in factors. Linear mixed models assessed their effects on SLs of seven fungicides across all surfaces (n = 667) and stratified by recently cleaned surfaces (n = 217), floors (n = 105), and high dusty surfaces (n = 130). Daytime airing reduced floor SLs by 14–28%, depending on the pesticide, but increased SLs by up to 38% on high surfaces. Nighttime airing was associated with a 20–65% increase in recently cleaned surface SLs. Double-flow ventilation increased high surface SLs by 21–126%, while ventilation grids reduced contamination, especially on floors (up to 51%). Home insulation tended to raise SLs. Pets and gardening were the main sources of pesticide track-in, contributing to an 11–87% increase in floor SLs. However, pets substantially reduced SLs on high surfaces. Direct yard access increased SLs in rooms by 5–10%. Room occupancy and outdoor activities showed mixed effects depending on the surface, whereas shoe removal and doormat use showed no significant impact. While ventilation effects remain complex to interpret for prevention, track-in findings suggest hygiene measures could help reduce indoor pesticide SLs.

Graphical Abstract