Spatial decomposed concentrations of NO2 and PM2.5 air pollution in the United States at Census block group level

This dataset includes the yearly block group level decomposed concentrations of four spatial components ("long-range", "mid-range", "neighborhood", "near-source") for PM2.5 and NO2, from year-2000 to year-2015.

The concentrations are at the census block group level. The unit of concentrations is ug/m3 for PM2.5 and ppb for NO2. Block group is identified by variable "blockgroup_id"; the longitude and latitude of each block group centroid are indicated by "longitude" and "latitude". Names of concentration variables follow the pattern as "COMPONENT_YEAR". "COMPONENT" represents four spatial components; "YEAR" represents the last two digits of year-2000 to year-2015. For example, "long-range_00" represents the "long-range" component concentrations for the year-2000.

To use this dateset, please cite the following article:
Wang, Y., Bechle, M.J., Kim, S.Y., Adams, P.J., Pandis, S.N., Pope III, C.A., Robinson, A.L., Sheppard, L., Szpiro, A.A. and Marshall, J.D., 2020. Spatial decomposition analysis of NO2 and PM2. 5 air pollution in the United States. Atmospheric Environment, p.117470. DOI: 10.1016/j.atmosenv.2020.117470

本数据集囊括了自2000年至2015年间，按年度和区块小组级别分解的四种空间成分（“长距离”、“中距离”、“邻里”及“近源”）的PM2.5和NO2浓度数据。浓度单位分别为PM2.5的微克每立方米（ug/m3）以及NO2的百万分比（ppb）。区块小组通过“blockgroup_id”变量进行标识；每个区块小组的经纬度中心点由“longitude”和“latitude”变量提供。浓度变量的命名遵循“COMPONENT_YEAR”的格式；“COMPONENT”代表四种空间成分；“YEAR”则代表2000年至2015年的最后两位数字。例如，“long-range_00”表示2000年的“长距离”成分浓度。

为使用本数据集，请引用以下文献：
王，Y.，贝切尔，M.J.，金，S.Y.，亚当斯，P.J.，潘迪斯，S.N.，波普三世，C.A.，罗宾逊，A.L.，希帕德，L.，斯皮罗，A.A.，以及马歇尔，J.D.（2020）。美国NO2和PM2.5空气污染的空间分解分析。大气环境，117470。DOI：10.1016/j.atmosenv.2020.117470