Environmental Justice 2025 Set

Environmental Justice 2025 Set is comprised of two layers: Environmental Justice Block Groups 2025 and Environmental Justice Distressed Municipality 2025. 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 2025 was created from Connecticut block group boundary data located in the Census Bureau's 2025 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 2024 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. The latest ACS 5-year estimate data should be used to update this layer. Environmental Justice Distressed Municipalities 2025 was created from the Connecticut town boundary data located in the Census Bureau's 2025 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 2025 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 2025 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. 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 an eligibility grace period. (See definition at CGS Sec. 32-9p(b).) Fitting into that grace period, twelve towns continue to be eligible for distressed municipality benefits. Those are Ansonia, Bristol, Chaplin, Griswold, Groton, Montville, Naugatuck, New Haven, North Stonington, Preston, Stratford, Voluntown.2025年环境正义数据集（Environmental Justice 2025 Set）包含两个图层：2025年环境正义街区组（Environmental Justice Block Groups 2025）与2025年环境正义困境市政区域（Environmental Justice Distressed Municipality 2025）。制作这两类数据所使用的所有普查与美国社区调查（ACS, American Community Survey）数据，均为计算阶段可获取的最新美国人口普查局公开数据。 2025年环境正义街区组（Environmental Justice Block Groups 2025）基于美国人口普查局2025年街区组TIGER/Line形状文件（TIGER/Line Shapefiles）中的康涅狄格州街区组边界数据构建。用于判定街区组是否符合环境正义社区资格（详见康涅狄格州法规22a-20a）的贫困数据，源自美国人口普查局2024年美国社区调查5年估计值。该贫困数据已通过ArcPro与街区组边界数据完成关联。筛选出「家庭收入低于联邦贫困线200%的人口占比≥30.0%」的街区组，并将筛选结果导出为全新形状文件。随后对筛选出的街区组进行裁剪操作，仅保留困境市政区域范围之外的街区组。维护说明：该图层将每年更新一次，同步于年度困境市政区域更新周期，更新时需采用最新的美国社区调查5年估计值数据。 2025年环境正义困境市政区域（Environmental Justice Distressed Municipality 2025）基于美国人口普查局2025年TIGER/Line形状文件（县分区）中的康涅狄格州城镇边界数据构建。通过属性选择工具，依据城镇名称筛选出困境市政区域（注：2025年困境市政区域列表由康涅狄格州经济与社区发展部（DECD, Department of Economic and Community Development）提供），并将筛选结果导出为全新形状文件。使用「合并（Union）」工具，将该新形状文件与2025年TIGER/Line形状文件中的印第安保留地（美国印第安地区地理）边界数据进行合并。随后删除合并结果中的印第安保留地要素，仅保留困境市政区域。维护说明：该图层将在康涅狄格州经济与社区发展部（DECD, Department of Economic and Community Development）更新年度困境市政区域列表时同步更新。 根据康涅狄格州经济与社区发展部（DECD, Department of Economic and Community Development）的定义，困境市政区域还包含虽不再符合阈值要求但仍处于资格宽限期内的区域（详见《康涅狄格州普通法规》（CGS, Connecticut General Statutes）第32-9p(b)条）。处于该宽限期内的12个城镇仍可享受困境市政区域福利，分别为：安索尼厄姆（Ansonia）、布里斯托尔（Bristol）、查普林（Chaplin）、格里斯沃尔德（Griswold）、格罗顿（Groton）、蒙特尔（Montville）、诺格塔克（Naugatuck）、纽黑文（New Haven）、北斯托宁顿（North Stonington）、普雷斯顿（Preston）、斯特拉特福（Stratford）以及沃尔顿敦（Voluntown）。