Potential Environmental Justice (EJ) areas in Region 2 based on 2000 Census [EPA.EJAREAS_2000]

Metadata Updated: January 12, 2018

Potential Environmental Justice (EJ) areas in Region 2 . This dataset was derived from 2000 census data and based on the criteria setforth in the Region 2 Interim Environmental Justice Policy. The two criteria for Region 2's EJ demographic analysis are percent poverty and percent minority. The percent minority and percent poverty numbers for each blockgroup are compared to the benchmark value for the state. Census blockgroups with percent poverty or percent minority higher than the state threshold are considered potential EJ areas. The cutoffs for each state were derived by using the statistical method - cluster analysis. Cluster analysis was chosen as the most objective way of evaluating the demographic data and determining cutoff values for minority and low income. With cluster analysis, data are divided into two distinct groups (e.g., minority and non-minority, and low income and non-low income). Cluster analysis examines natural breaks of the data. Separate analyses were conducted for minority and low income, respectively, for each State. All census block groups within a State were ranked in descending order according to the demographic factor under evaluation. This resulted in a ranking for percent minority by block group and a separate ranking for percent low income by block group. An iterative process was employed where the data were (1) split into two groups; (2) the means for each of the two groups were calculated; (3) the difference between the means for each group was determined; and (4) Steps 1- 3 were repeated until the greatest difference between the means was found. This method results in dividing the data into two groups that are as different as possible. All of the statistical methods evaluated indicated that minority populations in urban areas were skewing the results for the states of New York and New Jersey. Specifically, state-wide benchmarks were similar to those derived from using only urban areas, while the results for only rural areas were considerably lowered. Consequently, minority data was evaluated separately for urban and rural areas within these states. These separate analyses yield one statistical reference for the urban and one for rural for percent minority for New York and New Jersey. Due to the special situation in Puerto Rico and Virgin Island, only percent below poverty is applied for evaluation of potential EJ community. Cutoffs for % minority New York Urban 51.51 New York Rural 34.73 New Jersey Urban 48.52 New Jersey Rural 29.39 Cutoffs for % below poverty New York 23.59 New Jersey 18.58 Puerto Rico 45.2 Virgin Island 41.2

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Metadata Date September 14, 2017
Metadata Created Date October 16, 2017
Metadata Updated Date January 12, 2018
Reference Date(s) January 1, 2003 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from Environmental Dataset Gateway ISO Geospatial Metadata

Additional Metadata

Resource Type Dataset
Metadata Date September 14, 2017
Metadata Created Date October 16, 2017
Metadata Updated Date January 12, 2018
Reference Date(s) January 1, 2003 (publication)
Responsible Party U.S. Environmental Protection Agency, Region 2, GIS Team (Publisher)
Contact Email
Access Constraints https://edg.epa.gov/EPA_Data_License.html
Bbox East Long -62.29358
Bbox North Lat 45.028448
Bbox South Lat 17.672209
Bbox West Long -79.657367
Coupled Resource
Frequency Of Update asNeeded
Guid E6B69865-7F24-42E7-A778-219D5DFC046B
Harvest Object Id fcfbd21a-eda3-4af0-91c9-407891f74103
Harvest Source Id b8a6460e-2ff4-4060-9f31-a0229d105a3c
Harvest Source Title Environmental Dataset Gateway ISO Geospatial Metadata
Licence For EPA internal Use only/not for redistribution. This data layer shows "potential" EJ areas and it is strictly intended as a screening tool.
Metadata Language eng
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System 4296
Spatial Harvester True
Temporal Extent Begin 2002-01-01
Temporal Extent End 2002-01-01

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