Risk assessment of a Brazilian urban population due to the exposure to pyrethroid insecticides during the COVID-19 pandemic using wastewater-based epidemiology

被引：2

作者：

Lizot L.D.L.F. ^{[1
,3
]}

Bastiani M.F. ^{[1
,3
]}

Hahn R.Z. ^{[1
]}

Meireles Y.F. ^{[1
]}

Freitas M. ^{[1
]}

Bondan A.P. ^{[1
]}

do Nascimento C.A. ^{[2
]}

Quevedo D.M. ^{[3
]}

Linden R. ^{[1
,3
]}

机构：

[1] Laboratory of Analytical Toxicology, Universidade Feevale, Rua Rubem Berta, 200, Novo Hamburgo

[2] Department of Production Engineering, Faculdades Integradas de Taquara, Av. Oscar Martins Rangel, 4500, Taquara

[3] Graduate Program on Environmental Quality, Universidade Feevale, Rodovia RS 239, 2755, Novo Hamburgo

来源：

Chemosphere | 2023年 / 345卷

关键词：

3-Phenoxybenzoic acid; COVID-19; Pyrethroid insecticides; Risk assessment; Wastewater-based epidemiology;

D O I：

10.1016/j.chemosphere.2023.140526

中图分类号：

学科分类号：

摘要：

Pyrethroids are synthetic insecticides commonly used in agriculture and homes due to their low toxicity to mammals and effectiveness at low doses. However, exposure to pyrethroids can cause various symptoms, depending on the route of exposure. To measure human exposure to pyrethroids, researchers used wastewater-based epidemiology (WBE) with polar organic chemical integrative samplers (POCIS) sampling. This approach is a cost-effective and efficient way to assess exposure to pyrethroids. The study aimed to evaluate the exposure of an urban population in Brazil to pyrethroids during the COVID-19 pandemic using WBE with POCIS sampling. Researchers analyzed 3-phenoxybenzoic acid (3-PBA) in wastewater using passive sampling with POCIS, which was extracted with methanol and analyzed using UPLC-MS/MS. The range of CTWA concentrations of 3-PBA in wastewater was 24.3–298.2 ng L−1, with a mean value of 134 ± 76.5 ng L−1. The values were used to estimate the exposure of the population to pyrethroid insecticides. Three different conversion factors were applied to determine the range of exposure to at least 20 different pyrethroid insecticides. The exposure values ranged from 18.08 to 1441.49 mg day−1 per 1000 inhabitants. The toxicological risk posed to the exposed population was evaluated by calculating the WBE toxicological level (WBE-TL). Lambda-cyhalothrin was used as a reference for risk assessment, and the WBE-TL values for lambda-cyhalothrin ranged from 0.5 to 8.29 (considering the high CF). We compared mobility trends to 3-PBA exposure during the COVID-19 pandemic. The study highlighted the effectiveness of POCIS sampling in WBE and provided useful information for policymakers and regulatory agencies. POCIS sampling has practical advantages, including analyte pre-concentration, low operational cost, and ease of use. Overall, the study shows the importance of monitoring and understanding the exposure of the population to pyrethroid insecticides, especially during the pandemic when people may be spending more time at home. © 2023 Elsevier Ltd

引用

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