InMAP Source-Receptor Matrix (ISRM) dataset

The InMAP Source-Receptor Matrix (ISRM) estimates the air quality impacts of emissions released from any source location in the contiguous United States to any receptor location. Specifically, the values in the ISRM dataset are the change in PM_2.5 concentration (µg m^-3) in any receptor grid cell per unit of emissions (µg sec^-1) in any source grid cell. ISRM was created from repeated runs of the Intervention Model for Air Pollution (InMAP), isolating the impact of emissions from every grid cell in InMAP and from three emission heights representing ground-level, low-stack, and high-stack emissions. A file of the marginal impacts of emissions from each source location is also included ("marginal_values.csv"), which summarizes the estimates in ISRM by each source grid cell in terms of monetary damages ($ tonne^-1), increased mortality (deaths tonne^-1), and population exposure (population*µg m^-3 tonne^-1).InMAP源受体矩阵（InMAP Source-Receptor Matrix，ISRM）用于估算美国本土范围内任意排放源位置向任意受体位置排放的污染物对空气质量的影响。具体而言，ISRM数据集内的数值代表：任意源网格单元内每单位排放量（微克每秒）所对应的任意受体网格单元中PM₂.₅浓度变化量（微克每立方米）。该数据集通过反复运行空气污染干预模型（Intervention Model for Air Pollution，InMAP）生成，分离出InMAP中所有网格单元的排放影响，以及覆盖地面排放、低矮烟囱排放与高烟囱排放三类排放高度下的排放影响。数据集还附带一份名为"marginal_values.csv"的文件，该文件以各源网格单元为统计单位，对ISRM的估算结果进行了汇总，涵盖经济损失（美元/吨）、额外死亡人数（死亡人数/吨）以及人群暴露量（人口数×微克每立方米/吨）。