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Environmental Health Hazard Index, July 2020

Identification Information
Citation
Publication Date
20230705
Title
Environmental Health Hazard Index, July 2020
Geospatial Data Presentation Form
vector digital data
Collection Title
U.S. Department of Housing and Urban Development Maps and GIS Data
Publication Information
Publication Place
Publisher
United States. Department of Housing and Urban Development
Abstract
ENVIRONMENTAL HEALTH HAZARD INDEXSummary The environmental health hazard exposure index summarizes potential exposure to harmful toxins at a neighborhood level. Potential health hazards exposure is a linear combination of standardized EPA estimates of air quality carcinogenic (c), respiratory (r) and neurological (n) hazards with i indexing census tracts. Where means  and standard errors  are estimated over the national distribution.  Interpretation Values are inverted and then percentile ranked nationally. Values range from 0 to 100. The higher the index value, the less exposure to toxins harmful to human health. Therefore, the higher the value, the better the environmental quality of a neighborhood, where a neighborhood is a census block-group. Data Source: National Air Toxics Assessment (NATA) data, 2011. Related AFFH-T Local Government, PHA and State Tables/Maps: Table 12; Map 13. References: https://www.epa.gov/ttn/atw/natamain/ To learn more about the Environmental Health Hazard Index visit: https://www.hudexchange.info/resource/4868/affh-raw-data/Date of Coverage: 02/2018
Purpose
The Environmental Health Hazard Exposure Index summarizes potential exposure to harmful toxins at a neighborhood level.
Temporal Extent
Currentness Reference
ground condition
Time Instant
20200701
Bounding Box
West
-179.147339
East
179.778467
North
71.390482
South
17.881327
Theme Keyword
Air quality management
Environmental health
Housing and health
Theme Keyword Thesaurus
lcsh
Theme Keyword
boundaries
economy
location
society
Theme Keyword Thesaurus
ISO 19115 Topic Categories
Place Keyword
United States
Place Keyword Thesaurus
geonames
Temporal Keyword
Access Restrictions
Other Constraints
Use Restrictions
HUD and the dataset and metadata authors assume no responsibility for the use or misuse of the dataset. No warranty, expressed or implied is made with regard to the accuracy of the spatial accuracy, and no liability is assumed by the U.S. Government in general, the dataset creators or the U.S. Department of Housing and Urban Development specifically, as to the spatial or attribute accuracy of the data.
Status
Complete
Maintenance and Update Frequency
Annually
Point of Contact
Contact Organization
Department of Housing and Urban Development, Office of Policy Development and Research
Delivery Point
451 7th Street SW rm. 8126
City
Washington
State
D.C.
Postal Code
20410-0001
Country
US
Contact Telephone
202-402-4153
Contact Electronic Mail Address
GIShelpdesk@hud.gov
Credit
U.S. Department of Housing and Urban Development
Native Data Set Environment
Esri ArcGIS 12.9.3.32739
Collection
Title
U.S. Department of Housing and Urban Development Maps and GIS Data
Spatial Data Organization Information
Direct Spatial Reference Method
Vector
Point and Vector Object Information
SDTS Terms Description
SDTS Point and Vector Object Type
GT-polygon composed of chains
Point and Vector Object Count
73421
Entity and Attribute Information
Entity Type
Entity Type Label
Environmental Health Hazard Index
Entity Type Definition
The Environmental Health Hazard Exposure Index summarizes potential exposure to harmful toxins at a neighborhood level.
Entity Type Definition Source
U.S. Department of Housing and Urban Development
Attributes
OBJECTID
Internal feature number. (Sequential unique whole numbers that are automatically generated.)
Definition Source
Esri
Shape
Feature geometry. (Coordinates defining the features.)
Definition Source
Esri
GEOID
Geographic ID
Definition Source
HUD Authors
CATEGORY
Geographic level of data
Definition Source
HUD Authors
HAZ_IDX
Environmental health index (census tract)
Definition Source
HUD Authors
STUSAB
State USPS abbreviation (two letters)
Definition Source
HUD Authors
STATE
State FIPS Code (two digits)
Definition Source
HUD Authors
STATE_NAME
State name
Definition Source
HUD Authors
COUNTY
County FIPS code (three digits)
Definition Source
HUD Authors
COUNTY_NAME
County name
Definition Source
HUD Authors
TRACT
Tract ID (six digits, implied two decimals)
Definition Source
HUD Authors
VERSION
Data Version
Definition Source
HUD Authors
Shape_Length
Length of feature in internal units. (Positive real numbers that are automatically generated.)
Definition Source
Esri
Shape_Area
Area of feature in internal units squared. (Positive real numbers that are automatically generated.)
Definition Source
Esri
Distribution Information
Distributor
Stanford Geospatial Center
Metadata Reference Information
Metadata Date
20230705
Metadata Contact
Contact Information
Contact Organization Primary
Contact Organization
Stanford Geospatial Center
Contact Address
Address
Mitchell Bldg. 2nd floor
Address
397 Panama Mall
City
Stanford
State or Province
California
Postal Code
94305
Country
US
Contact Voice Telephone
650-723-2746
Contact Electronic Mail Address
brannerlibrary@stanford.edu
Metadata Standard Name
FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version
FGDC-STD-001-1998

Environmental Health Hazard Index, July 2020

Identification Information

Citation
Title
Environmental Health Hazard Index, July 2020
Publisher
United States. Department of Housing and Urban Development
Publication Date
2023-07-05
Identifier
https://purl.stanford.edu/yq267dc3411
Geospatial Data Presentation Form
mapDigital
Collection Title
U.S. Department of Housing and Urban Development Maps and GIS Data
Abstract
ENVIRONMENTAL HEALTH HAZARD INDEXSummary The environmental health hazard exposure index summarizes potential exposure to harmful toxins at a neighborhood level. Potential health hazards exposure is a linear combination of standardized EPA estimates of air quality carcinogenic (c), respiratory (r) and neurological (n) hazards with i indexing census tracts. Where means  and standard errors  are estimated over the national distribution.  Interpretation Values are inverted and then percentile ranked nationally. Values range from 0 to 100. The higher the index value, the less exposure to toxins harmful to human health. Therefore, the higher the value, the better the environmental quality of a neighborhood, where a neighborhood is a census block-group. Data Source: National Air Toxics Assessment (NATA) data, 2011. Related AFFH-T Local Government, PHA and State Tables/Maps: Table 12; Map 13. References: https://www.epa.gov/ttn/atw/natamain/ To learn more about the Environmental Health Hazard Index visit: https://www.hudexchange.info/resource/4868/affh-raw-data/Date of Coverage: 02/2018
Purpose
The Environmental Health Hazard Exposure Index summarizes potential exposure to harmful toxins at a neighborhood level.
Temporal Extent
Currentness Reference
ground condition
Time Instant
2020-07-01T00:00:00
Bounding Box
West
-179.147339
East
179.778467
North
71.390482
South
17.881327
Bounding Box
West
-179.147339
East
179.778467
North
71.390482
South
17.881327
ISO Topic Category
boundaries
economy
location
society
Place Keyword
United States
Place Keyword Thesaurus
geonames
Theme Keyword
Air quality management
Environmental health
Housing and health
Theme Keyword Thesaurus
lcsh
Resource Constraints
Use Limitation
HUD and the dataset and metadata authors assume no responsibility for the use or misuse of the dataset. No warranty, expressed or implied is made with regard to the accuracy of the spatial accuracy, and no liability is assumed by the U.S. Government in general, the dataset creators or the U.S. Department of Housing and Urban Development specifically, as to the spatial or attribute accuracy of the data.
Legal Constraints
Access Restrictions
otherRestrictions
Other Restrictions
Other Constraints
Legal Constraints
Use Restrictions
otherRestrictions
Other Restrictions
This work is in the Public Domain, meaning that it is not subject to copyright.
Security Constraints
Status
completed
Maintenance and Update Frequency
annually
Collection
Collection Title
U.S. Department of Housing and Urban Development Maps and GIS Data
URL
https://purl.stanford.edu/yq267dc3411
Language
eng
Credit
U.S. Department of Housing and Urban Development
Point of Contact
Contact
HUD eGIS Team
Delivery Point
451 7th Street SW rm. 8126
City
Washington
Administrative Area
D.C.
Postal Code
20410-0001
Country
US
Email
GIShelpdesk@hud.gov
Phone
202-402-4153

Spatial Reference Information

Reference System Identifier
Code
3857
Code Space
EPSG
Version
6.18.3(9.3.1.2)

Distribution Information

Format Name
Shapefile
Distributor
Stanford Geospatial Center
Online Access
Protocol
Name

Content Information

Feature Catalog Description
Compliance Code
false
Language
eng
Included With Dataset
true
Feature Catalog Citation
Title
Entity and Attribute Information
Feature Catalog Identifier
5217a45f-b6bf-4f31-ae76-483c4e07697dUUID

Spatial Representation Information

Vector
Topology Level
geometryOnly
Vector Object Type
composite
Vector Object Count
73421

Metadata Reference Information

Hierarchy Level
dataset
Metadata File Identifier
https://purl.stanford.edu/yq267dc3411
Parent Identifier
https://purl.stanford.edu/wc590wy7468.mods
Dataset URI
https://purl.stanford.edu/yq267dc3411
Metadata Date Stamp
2023-07-05
Metadata Standard Name
ISO 19139 Geographic Information - Metadata - Implementation Specification
Metadata Standard Version
2007
Character Set
utf8
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