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11. Landscape Units: San Francisco Bay Area, California, 2011

2011. Bay Area Open Space Council, San Francisco Bay Area Upland Habitat Goals Project, Conservation Lands Network, and GreenInfo Network (Firm). This polygon shapefile depicts the division of the nine county San Francisco Bay Area Region, California into 34 landscape units, or subregions, to... Bay Area Open Space Council.

12. Lead (Pb): Federal Area Designations: California, 2011

2011. United States. Environmental Protection Agency. This polygon shapefile contains area designations of lead attainment (Pb) in California (Region 9). There are three categories of designations: : n... United States. Environmental Protection Agency. Region IX.

13. Leidy Stream Conservaton Targets: San Francisco Bay Area, California, 2011

2011. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This polyline shapefile depicts stream and fish data that Leidy compiled over decades of research in the nine county San Francisco Bay Area Region,... Bay Area Open Space Council.

14. Liquified Natural Gas Sites, Northeast United States, 2011

2011. United States. Coast Guard. This dataset shows Offshore Deepwater Liquified Natural Gas (LNG) ports in the northeast region, which includes the proposed Neptune Deepwater LNG ... Northeast Ocean Data.

15. Major Roads: San Francisco Bay Area, California, 2011

2011. Bay Area Open Space Council. This data comes from a variety of sources developed over the years including ESRI data, Department of Transportation, TIGER and counties. It is not... Bay Area Open Space Council.

16. Mammal Specimen Provenances: San Francisco Bay Area, California, 2011

2011. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). The Museum of Vertebrate Zoology (MVZ) mammal collection is the fourth largest in the United States and the second largest such collection associat... Bay Area Open Space Council.

17. No Discharge Zones, Northeast United States, 2011-2014

2011. Applied Science Associates. This polygon shapefile represents No Discharge Zones in the Northeastern United States. A No Discharge Zone (NDZ) is a designated boundary within w... Northeast Ocean Data.

18. North Atlantic Tanker AIS Vessel Density 2011

2011. United States. National Oceanic and Atmospheric Administration. This raster dataset represents density of tanker vessel traffic in 2011 from vessels with Automatic Identification System (AIS) transponders in 100... United States. National Oceanic and Atmospheric Administration.

19. Particulate Matter (PM-10): Federal Area Designations: California, 2011

2011. United States. Environmental Protection Agency. Region IX. This polygon shapefile shows designated areas for particulate matter < 10 microns according to the 24-Hour National Ambient Air Quality Standard... California. Air Resources Board.

20. Particulate Matter (PM-2.5) Non-Attainment Areas: California, 2011

2011. United States. Environmental Protection Agency. . This polygon shapefile identifies areas in the U.S. where air pollution levels have not met the 2006 National Ambient Air Quality Standards (NAAQS)... California. Air Resources Board.