Jia Chunrong, Fu Xianqiang, Smith Larry
School of Public Health, University of Memphis, Memphis, TN 38152, USA.
Shelby County Health Department, Memphis, TN 38134, USA.
Data Brief. 2023 Jan 20;47:108923. doi: 10.1016/j.dib.2023.108923. eCollection 2023 Apr.
This dataset contains concentrations (in ng/m) of 32 polycyclic aromatic hydrocarbons (PAHs) in the ambient air in the Memphis Tri-state Area (MTA). In the atmosphere, PAHs are toxic pollutants emitted from incomplete combustion sources. This monitoring campaign was conducted at 19 sites in three neighboring counties in Tennessee, Mississippi, and Arkansas, i.e., MTA, over one year. The monitoring sites represented industrial, urban, suburban, and remote land types. Total suspended particulate (TSP) samples were collected at each site using a high-volume sampler every 12 days from March 13th, 2018, to May 25th, 2019. The collection media consisted of a quartz fiber filter (QFF) and a glass thimble containing polyurethane foam (PUF) and XAD-4 resin that collected particulate- and gas-phase PAHs. Approximately 288 m of ambient air was drawn over 24 h. The QFF and sorbents were extracted together in an accelerated solvent extraction (ASE) system, and the extract was then nitrogen blown down to 1 ml in an automatic evaporator, and the final extract was analyzed for 32 target PAHs on a gas chromatography/mass spectrometry (GC/MS) system operated in the select-ion-monitoring (SIM) mode. The US Environmental Protection Agency (EPA) reviewed and approved the sampling and analytical protocols. The dataset also has site descriptions, sampling information, and analytical performance. This PAH dataset can be used to explore atmospheric chemistry and sources of PAHs, estimate population exposures to airborne PAHs and the associated health risks, and address environmental health disparities.
该数据集包含孟菲斯三州地区（MTA）环境空气中32种多环芳烃（PAH）的浓度（单位：纳克/立方米）。在大气中，多环芳烃是不完全燃烧源排放的有毒污染物。此次监测活动在田纳西州、密西西比州和阿肯色州相邻的三个县（即MTA）的19个地点进行，为期一年。监测地点代表了工业、城市、郊区和偏远地区的土地类型。从2018年3月13日至2019年5月25日，每隔12天在每个地点使用大容量采样器采集总悬浮颗粒物（TSP）样本。采集介质由石英纤维滤膜（QFF）以及装有聚氨酯泡沫（PUF）和XAD - 4树脂的玻璃套管组成，用于采集颗粒相和气相多环芳烃。在24小时内抽取约288立方米的环境空气。QFF和吸附剂在加速溶剂萃取（ASE）系统中一起萃取，然后提取物在自动蒸发器中用氮气吹至1毫升，最终提取物在以选择离子监测（SIM）模式运行的气相色谱/质谱（GC/MS）系统上分析32种目标多环芳烃。美国环境保护局（EPA）审查并批准了采样和分析方案。该数据集还包含地点描述、采样信息和分析性能。这个多环芳烃数据集可用于探索大气化学和多环芳烃的来源，估计人群对空气中多环芳烃的暴露情况及相关健康风险，并解决环境健康差异问题。
