Microplastic including tire wear particles in urban air measured in spider webs in Oldenburg, Germany, in 2020@en

This data set presents microplastic (MP) mass loads including tire wear particles (TWP) in spider webs collected from bus stops in a mid-sized German city. Spider webs were used as a spatial and temporal mirror of MP contamination in urban air. The analysis was conducted with pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS). Details concerning the measurements, quantification, and calibration are found in the related study (Goßmann et al., 2022). Spider webs were greatly contaminated with TWP, clusters of polyethylene-terephthalate (C-PET) and polyvinylchloride (C-PVC). Moreover, they provide insight into spatial differences and trends of MP/TWP load in local (urban) air on a small scale. While busy, stop and go dominated roads showed higher contamination of TWP, spider webs from residential areas were more often contaminated with MP other than TWP, predominantly C-PET. In some spider webs, MP accounted for up to ten percent of the total weight of the sample.本数据集收录了德国一座中型城市公交站采集的蜘蛛网样本中的微塑料（microplastic, MP）质量负载数据，其中包含轮胎磨损颗粒（tire wear particles, TWP）。蜘蛛网可作为表征城市空气微塑料污染时空分布的镜像介质，本次分析采用热解气相色谱-质谱联用法（pyrolysis-gas chromatography-mass spectrometry, Py-GC/MS）完成，有关测量、定量与校准的详细方法可参见相关研究文献（Goßmann等，2022）。蜘蛛网中普遍存在轮胎磨损颗粒、聚对苯二甲酸乙二醇酯团聚体（polyethylene-terephthalate, C-PET）以及聚氯乙烯（polyvinylchloride, C-PVC）污染。此外，该数据集还揭示了局地（城市）空气中小尺度范围内微塑料/轮胎磨损颗粒负载的空间差异与变化趋势：以停停走走的拥堵交通为主的繁忙道路周边的蜘蛛网，其轮胎磨损颗粒污染程度更高；而居民区采集的蜘蛛网则更易受到非轮胎磨损颗粒类微塑料的污染，且此类污染以聚对苯二甲酸乙二醇酯团聚体为主。部分蜘蛛网样本中，微塑料的质量占样本总质量的比例可达10%。