Baltimore Supersite:: Highly time- and size-resolved concentrations of urban PM2.5 and its constituents for resolution of sources and immune responses
Baltimore Supersite:: Highly time- and size-resolved concentrations of urban PM2.5 and its constituents for resolution of sources and immune responses
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DOI：
10.1016/j.atmosenv.2005.11.072
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发表时间：
2006-01-01
影响因子：
5
通讯作者：
Wexler, A. S.
中科院分区：
文献类型：
--
作者：
Ondov, J. M.;Buckley, T. J.;Wexler, A. S.
保护公众健康免受空气颗粒物（PM）的影响，需要评估PM化学成分，物理特性及其来源的测量和方法。在巴尔的摩地区的三个地点进行了采样：巴尔的摩南部的一个以来源为导向的（工业）区（FMC地点）和两个受体区地点（克利夫顿公园和蓬卡街）。FMC的测量是在项目的最初1个月进行的;克利夫顿的测量持续了大约2个月，而蓬卡街的测量持续了大约9.5个月。在整个项目中，使用半连续监测器以5分钟至1小时的间隔收集污染物样品，用于PM2.5质量，硫酸盐，硝酸盐，元素和有机碳，颗粒数尺寸分布（10-20，000 nm），CO，NOx，O-3，11种金属和单个颗粒的质谱。除了标准的气象测量，三维声波风速计和激光雷达系统在选定的时期内运行，是一个旋转鼓冲击器与3至6小时的分辨率和过滤器/PUF采样器的3小时测量的有机化合物。还进行了标准形态和FRM质量测量。本报告描述了在巴尔的摩Supersite计划的各个站点进行的测量类型，并提供了一些PM测量的汇总统计数据。气溶胶质量的测量，主要成分，和粒度分布数据的三个站点进行了比较。结果显示，蓬卡街和克利夫顿公园的PM浓度相当。在蓬卡街观察到变异性增加。(c)2006爱思唯尔有限公司保留所有权利。
Protection of public health from the effects of air particulate matter (PM) requires measurements and methods that assess the PM chemical constituents, physical properties, and their sources. Sampling was conducted at three sites in the Baltimore area: a source-oriented (industrial) area in south Baltimore (FMC site), and two receptor area sites (Clifton Park and Ponca Street). FMC measurements were made for the initial 1-month of the project; Clifton measurements lasted for about 2 months, while measurements at Ponca Street lasted for about 9.5 months. Pollutant samples were collected at intervals ranging from 5 min to 1 h using semi-continuous monitors for PM2.5 mass, sulfate, nitrate, elemental and organic carbon, particle number size distributions (10-20,000nm), CO, NOx, O-3, 11 metals, and mass spectra of individual particles, throughout the project. In addition to standard meteorological measurements, a 3D-sonic anemometer and a LIDAR system were operated during selected periods as were a rotating drum impactor with 3- to 6-h resolution and a filter/PUF sampler for 3-h measurements of organic compounds. Standard speciation and FRM mass measurements were also made. This report describes the types of measurements that were made at the various sites of the Baltimore Supersite program as well as presents the summary statistics for some of the PM measurements that have been made. The measurements of aerosol mass, major components, and size distribution data for the three sites are compared. Results show comparable PM concentrations at Ponca Street and Clifton Park. Increased variability was observed at Ponca Street. (c) 2006 Elsevier Ltd. All rights reserved.