Environmental Justice 2023 Set

Environmental Justice 2023 Set is comprised of two layers: Environmental Justice Block Groups 2023 and Environmental Justice Distressed Municipality 2023. All Census and ACS data used in the creation of these data are the latest available from the Census at time of calculation. Environmental Justice Block Groups 2023 was created from Connecticut block group boundary data located in the Census Bureau's 2022 Block Group TIGER/Line Shapefiles. The poverty data used to determine which block groups qualified as EJ communities (see CT State statute 22a-20a) was based on the Census Bureau's 2021 ACS 5-year estimate. This poverty data was joined with the block group boundaries in ArcPro. Block groups in which the percent of the population below 200% of the federal poverty level was greater than or equal to 30.0 were selected and the resulting selection was exported as a new shapefile. The block groups were then clipped so that only those block groups outside of distressed municipalities were displayed. Maintenance – This layer will be updated annually and will coincide with the annual distressed municipalities update (around August/September). The latest ACS 5-year estimate data should be used to update this layer. Environmental Justice Distressed Municipalities 2023 was created from the Connecticut town boundary data located in the Census Bureau's 2022 TIGER/Line Shapefiles (County Subdivisions). From this shapefile, "select by attribute" was used to select the distressed municipalities by town name (note: the list of 2023 distressed municipalities was provided by the CT Department of Economic and Community Development). The selection was then exported a new shapefile. The “Union” tool was used to unite the new shapefile with tribal lands (American Indian Area Geography) boundary data from the 2020 TIGER/Line files. In the resulting layer, the tribal lands were deleted so only the distressed municipalities remained. Maintenance – This layer will be updated annually when the DECD produces its new list of distressed municipalities (around August/September). Note: A distressed municipality, as designated by the Connecticut Department of Economic and Community Development, includes municipalities that no longer meet the threshold requirements but are still in a 5-year grace period. (See definition at CGS Sec. 32-9p(b).) Fitting into that grace period, ten towns continue to be eligible for distressed municipality benefits because they dropped off the list within the last five years. Those are Bristol, Enfield, Groton, Killingly, Naugatuck, New Haven, North Stonington, Plainfield, Preston, and Stratford.2023年环境正义数据集（Environmental Justice 2023 Set）包含两个图层：2023年环境正义普查区块组（Environmental Justice Block Groups 2023）与2023年环境正义困境市政区域（Environmental Justice Distressed Municipality 2023）。制作上述两类数据所使用的全部普查（Census）与美国社区调查（American Community Survey, ACS）数据，均为数据计算时点美国人口普查局（Census Bureau）可获取的最新版本。2023年环境正义普查区块组的数据基于康涅狄格州普查区块组边界数据制作，该数据源自美国人口普查局2022年普查区块组TIGER/Line形状文件（2022 Block Group TIGER/Line Shapefiles）。用于判定符合环境正义社区标准的普查区块组（参见康涅狄格州州法22a-20a）的贫困数据，以美国人口普查局2021年美国社区调查5年估算数据（2021 ACS 5-year estimate）为基础。该贫困数据与普查区块组边界在ArcPro软件中完成属性关联。筛选出家庭收入低于联邦贫困线200%的人口占比≥30.0%的普查区块组，并将筛选结果导出为新的形状文件。随后对筛选出的区块组进行空间裁剪，仅保留不属于困境市政区域的普查区块组。维护说明：该图层将每年更新一次，与困境市政区域的年度更新同步，大致在每年8月至9月期间，更新时需采用最新的美国社区调查5年估算数据。2023年环境正义困境市政区域的数据源自美国人口普查局2022年TIGER/Line形状文件（县分区，County Subdivisions）中的康涅狄格州城镇边界数据。通过属性选择工具，依据城镇名称筛选出困境市政区域，注：2023年困境市政区域名单由康涅狄格州经济与社区发展部（CT Department of Economic and Community Development, DECD）提供。将筛选结果导出为新的形状文件后，使用合并（Union）工具，将该新文件与2020年TIGER/Line文件中的印第安保留地（American Indian Area Geography）边界数据进行合并。最终生成的图层中删除印第安保留地部分，仅保留困境市政区域。维护说明：该图层将每年在康涅狄格州经济与社区发展部发布新的困境市政区域名单时更新，大致在每年8月至9月期间。备注：根据康涅狄格州经济与社区发展部的定义，困境市政区域还包括不再符合阈值要求但仍处于5年宽限期内的区域，参见康涅狄格州总法典第32-9p(b)条的定义。处于该宽限期内的共有10个城镇，可继续享受困境市政区域福利，它们分别是布里斯托尔（Bristol）、恩菲尔德（Enfield）、格罗顿（Groton）、基灵利（Killingly）、诺格塔克（Naugatuck）、纽黑文（New Haven）、北斯托宁顿（North Stonington）、普莱恩菲尔德（Plainfield）、普雷斯顿（Preston）以及斯特拉特福德（Stratford）。