Name: Environmental_Health_Hazard_Index

Display Field: STATE_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: 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

Copyright Text: U.S. Department of Housing and Urban Development

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 1000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -19942590.5397
YMin: 2023662.7031
XMax: 20012847.4219
YMax: 11537127.3335
Spatial Reference: 102100 (3857)

Drawing Info:

{"renderer":{"type":"simple","symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[214,225,252,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[110,110,110,255],"width":0.7}}},"scaleSymbols":true,"transparency":0,"labelingInfo":null}

HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• GEOID (type: esriFieldTypeString, alias: GEOID, SQL Type: sqlTypeOther, length: 12, nullable: true, editable: true)
• CATEGORY (type: esriFieldTypeString, alias: CATEGORY, SQL Type: sqlTypeOther, length: 15, nullable: true, editable: true)
• HAZ_IDX (type: esriFieldTypeInteger, alias: HAZ_IDX, SQL Type: sqlTypeOther, nullable: true, editable: true)
• STUSAB (type: esriFieldTypeString, alias: STUSAB, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• STATE (type: esriFieldTypeString, alias: STATE, SQL Type: sqlTypeOther, length: 2, nullable: true, editable: true)
• STATE_NAME (type: esriFieldTypeString, alias: STATE_NAME, SQL Type: sqlTypeOther, length: 30, nullable: true, editable: true)
• COUNTY (type: esriFieldTypeString, alias: COUNTY, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• COUNTY_NAME (type: esriFieldTypeString, alias: COUNTY_NAME, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• TRACT (type: esriFieldTypeString, alias: TRACT, SQL Type: sqlTypeOther, length: 6, nullable: true, editable: true)
• VERSION (type: esriFieldTypeString, alias: VERSION, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: Environmental_Health_Hazard_Index
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 7/21/2023 7:08:56 PM

Schema Last Edit Date: 7/21/2023 7:08:56 PM

Data Last Edit Date: 7/21/2023 7:08:56 PM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat