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The use of hedgerows to mitigate pesticide exposure of a population living in a rural area

Integrated Environmental Assessment and Management—Volume 18, Number 1—pp. 19–24


Farmer populations living in houses inside vegetable gardens are exposed to indoor pesticide pollution. The pulverizationdrift and volatile pesticides transported by wind are important sources of indoor pollution, which can be mitigated byhedgerows. This study was thefirst attempt in Brazil to investigate the efficiency of six different hedgerow species inreducing pesticide residues in air. Afluorescent compound (p‐aminobenzoic acid or PABA) was introduced in the sprayedpesticidefluid that traced the pesticide in the water. Samples were collected in Petri dishes positioned on stakes at differentheights in front of and behind the hedgerows. Data indicated barrier efficiency of up to 99%. Simulation of nontarget driftcontamination with herbicide concentrations exhibited reduced senescence effects on leaves and posed no threat tosurvival.Hedgerows are feasible, simple, and inexpensive techniques, which may be used easily by farmers, independent ofexternal support and efficiently mitigating indoor pesticide pollution, thus protecting human health

Author(s): Langenbach, T, Mager, AH, Campos, MM, De Falco, A, Aucélio, R, Campos, TM, Caldas, LQA

Journal: Integrated Environmental Assessment and Management—Volume 18, Number 1—pp. 19–24

Year: 2021


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