Unidad de Investigación en Ambiente y Salud, Universidad Autónoma de Occidente, Blvd. Macario Gaxiola y Carretera Internacional C.P., 81223, Los Mochis, Sinaloa, Mexico.
Instituto Nacional de Ecología y Cambio Climático, Ciudad de México, Mexico.
Chemosphere. 2022 Sep;303(Pt 2):135154. doi: 10.1016/j.chemosphere.2022.135154. Epub 2022 May 28.
Air is one of the target matrices of the Global Monitoring Plan (GMP) of the Stockholm Convention to determine concentrations and transport of Persistent Organic Pollutants (POPs). Mexico participates in the GMP for POPs in ambient air through the AIR-Global Environment Facility (GEF) program. The objective of this study was to analyze the results of POPs monitoring of air samples collected in Los Mochis, Sinaloa, Mexico, between 2017 and 2018. Passive samplers were used for the determination of chlorinated basic POPs, indicator polychlorinated biphenyls (Ind. PCBs), polybrominated biphenyl ethers (PBDEs), polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (dl-PCBs). A principal component analysis was applied to determine relationships between pollutants and groups present in the ambient air of the rural study area. Of the total POPs analyzed, 85.56% were detected in ambient air samples from Mexico. Organochlorine compounds, as DDT derivatives, were identified mainly, as well as PBDEs, PCDDs, and PCDFs. The prevalence of compounds differed according to the seasonality of sampling, with no change in average concentration between monitoring years.
空气是斯德哥尔摩公约全球监测计划（GMP）的目标矩阵之一，用于确定持久性有机污染物（POPs）的浓度和传输。墨西哥通过环境署-全球环境基金（GEF）方案参与了环境空气中 POPs 的 GMP。本研究的目的是分析 2017 年至 2018 年期间在墨西哥锡那罗亚州洛斯莫奇斯收集的空气样本中 POPs 监测的结果。使用被动采样器来测定氯化基本 POPs、指示多氯联苯（Ind. PCBs）、多溴联苯醚（PBDEs）、多氯二苯并对二恶英（PCDDs）、多氯二苯并呋喃（PCDFs）和类似二恶英的多氯联苯（dl-PCBs）。应用主成分分析来确定污染物与农村研究区域环境空气中存在的组之间的关系。在所分析的总 POPs 中，85.56%在来自墨西哥的环境空气样本中被检测到。有机氯化合物，如滴滴涕衍生物，是主要的识别化合物，还有 PBDEs、PCDDs 和 PCDFs。化合物的流行率根据采样的季节性而有所不同，在监测年份之间平均浓度没有变化。
