Layers:

Layer: exposure_zone (0)


Name: exposure_zone

Display Field: st_area_sh

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description:

Air Quality - Air Pollution Exposure Zone (2020) - DRAFT at 2/10/2020

Speak to Jen McKellar for more information.



Copyright Text: CPC

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -122.493920248121
YMin: 37.7059497503807
XMax: -122.354648108224
YMax: 37.8258452431635
Spatial Reference: 4326 (4326)


Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: FID

Unique ID Field:

Name : FID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
• FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• st_area_sh (type: esriFieldTypeDouble, alias: st_area_sh, SQL Type: sqlTypeOther, nullable: true, editable: true)
• st_length_ (type: esriFieldTypeDouble, alias: st_length_, SQL Type: sqlTypeOther, 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: exposure_zone
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/12/2020 8:46:48 PM

Schema Last Edit Date: 8/12/2020 8:46:48 PM

Data Last Edit Date: 8/12/2020 8:46:48 PM

Layer: hot spots (1)


Name: hot spots

Display Field: mapblklot

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description:

San Francisco partnered with the Bay Area Air Quality Management District (BAAQMD) to inventory and assess air pollution and exposures from mobile, stationary, and area sources within San Francisco. The BAAQMD has conducted dispersion modeling using AERMOD to assess the emissions from the following primary sources: roadways, permitted stationary sources, port and maritime sources, Caltrain and the Transit Center/Transbay Terminal bus depot. Particulate matter (PM10 and PM2.5) and total organic gases (TOG) were modeled on a 20 meter by 20 meter receptor grid covering the entire City. A 20 meter buffer was added around each receptor point to capture all areas in between receptor points (buffered receptor point).

The layer identifies city lots where a buffered receptor point indicates modeled fine particulate matter (PM2.5) annual average concentrations of or greater than 10 micrograms per cubic meter, including ambient, and/or excess cancer risk of or greater than 100 per one million population (air pollution hot spots). This layer does not identify all city lots that overlap with these criteria because certain lots are substantially large (e.g., Golden Gate Park, Lake Merced, Presidio, Balboa Park, City College of San Francisco, Yerba Buena Island) and identifying the entire lot, although only one or a few buffered receptor points within the large parcel exceed the criteria, could be misleading. In these instances, only the buffered receptor point(s) is shown.

For more information please speak to Wade Wietgrefe



Copyright Text:

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -122.506171935732
YMin: 37.7065614523446
XMax: -122.357538704697
YMax: 37.8139386650001
Spatial Reference: 4326 (4326)


Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: FID

Unique ID Field:

Name : FID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
• FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• mapblklot (type: esriFieldTypeString, alias: mapblklot, SQL Type: sqlTypeOther, length: 9, nullable: true, editable: true)
• blklot (type: esriFieldTypeString, alias: blklot, SQL Type: sqlTypeOther, length: 9, nullable: true, editable: true)
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• street (type: esriFieldTypeString, alias: street, SQL Type: sqlTypeOther, length: 20, nullable: true, editable: true)
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• zoning (type: esriFieldTypeString, alias: zoning, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• heightlimi (type: esriFieldTypeString, alias: heightlimi, SQL Type: sqlTypeOther, length: 18, nullable: true, editable: true)
• censustrac (type: esriFieldTypeDouble, alias: censustrac, SQL Type: sqlTypeOther, nullable: true, editable: true)
• censusbloc (type: esriFieldTypeString, alias: censusbloc, SQL Type: sqlTypeOther, length: 4, nullable: true, editable: true)
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• mappage (type: esriFieldTypeString, alias: mappage, SQL Type: sqlTypeOther, length: 2, nullable: true, editable: true)
• st_area_sh (type: esriFieldTypeDouble, alias: st_area_sh, SQL Type: sqlTypeOther, nullable: true, editable: true)
• st_length_ (type: esriFieldTypeDouble, alias: st_length_, SQL Type: sqlTypeOther, 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: hot spots
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/12/2020 8:46:43 PM

Schema Last Edit Date: 8/12/2020 8:46:43 PM

Data Last Edit Date: 8/12/2020 8:46:43 PM