Air Monitoring Stations and Proximity to Major Roads

Caitlin MorrisonUP206A

February 12, 2012 1

Background

• Particle exposure pollution (>2.5

microns in diameter) can cause health

issues with the heart and lung.

• Sources of fine particles (PM 2.5)

include all types of combustion

activities:

• Motor vehicles

• Power plants

• Wood burning

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PM 2.5 Air Monitoring Stations in California

• California Air Resources Board

measures pollutants at over 50

sites

• PM 2.5 mass concentrations

are collected at National Air

Monitoring Stations (NAMS)

and State and Local Air

Monitoring Sites (SLAMS)

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PM 2.5 Averages Throughout California

• Maximum: 21.2 µg/m3 (Kern)

• Minimum: 3.3 µg/m3 (Lakeport)

• California Average: 10.95 µg/m3

• LA County Average: 13.2 µg/m3

(across 6 sites)

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Roadways Near Compton Monitoring Station - 1, 3 and 5 Mile Buffers

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Additional InformationSKILLS USED1.Inset map 2.Graduated Symbols – Graduated symbols represent AVERAGE PM 2.5 therefore they were given a subtle grey outline to represent interpretation of averages3.Boundary sub-sets selection (Kern and LA county was derived from selecting counties in the view of California and was converted to a shapefile)4.Buffering – Slide 6 and Slide 7 show major roadways that exist within the one mile buffer (the one mile buffer was not shown on these maps in an attempt to keep the presentation simple)5.Geoprocessing (Clip California and US States Layer with caliDetail)6.Geocoding (Air Monitoring Stations added using X Y coordinates)

REFERENCES•California Enviornmental Protection Agency – Air Resources Board - http://www.arb.ca.gov/research/aaqs/aaqs.htm•Census Tiger / Line Data (2009) - http://www.census.gov/geo/www/tiger/tgrshp2009/tgrshp2009.html•National Atlas Mapping Professionals - http://www.nationalatlas.gov/pros.html•Benton Clean Air Agency (Image of size comparison; slide 2) http://bentoncleanair.org/air-quality/air-pollutants-frequent-questions•Butte County Air Quality Management District (image; title slide) - http://www.bcaqmd.org/page/monitoring-air-quality.php•Image of LA downtown (slide 2 & slide 10) – Caitlin Morrison•Image of Compton MLK Monument - http://en.wikipedia.org/wiki File:Compton_martin_luther_king_monument.jpg•Image of Bakersfield - http://en.wikipedia.org/wiki/File:Bakersfield_CA_-_sign.jpg

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