presentation cumulative impacts and community ... · pdf file27.07.2017 ·...
TRANSCRIPT
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Cumulative Impacts and Community Vulnerability Symposium
July 27, 2017Air Resources Board
California Environmental Protection Agency
Álvaro Alvarado, Ph.D.
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Environmental Justice Screening Method
• Developed by Manuel Pastor, Rachel Morello-Frosch, Jim Sadd
• Under contract with Air Resources Board
• Research tool to identify hot spots and air quality trends
• Reflects published research on air pollution, environmental justice, and health
• Data transparent, publicly available• Reviewed by environmental justice groups, academic researchers• Statewide and regional scoring
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Screening Method Categories
• Exposure and Health Risk• State and federal data• Modeling from emissions inventories
• Hazard Proximity• ARB land use guidelines
• Social and Health Vulnerability• Based on epidemiological literature• EJ literature on community vulnerability
• Climate Vulnerability• Heat islands, temperature trend, vulnerability
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Hazard Proximity• Sensitive Receptors
• Residents, schools, day care centers, playgrounds, urban parks, and health care facilities
• Hazards• Hazardous landuse: Railroads, airports, ports, petroleum
refineries, and intermodal facilities, toxic cleanup sites• Large facilities: Green-house gas emissions >25 tons per year;
air toxics and criteria pollutants >10 tons per year• Small facilities: Chrome plating, auto paint & body shops, gas
stations• Hazardous waste treatment, storage and disposal facilities• Traffic density
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Land Use and Hazard Proximity Map
• Measure distance between sensitive receptors and hazards
• Score based upon number of facilities and distance from sensitive receptors 1000 feet = 1 2000 feet = 0.5 3000 feet = 0.1
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Image credit: Manuel Pastor, Rachel Morello-Frosch, Jim Sadd
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Validating Big Data: Hazard Proximity
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Validating Hazard Proximity Locations
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Image credit: Manuel Pastor, Rachel Morello-Frosch, Jim Sadd
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Validating Hazard Proximity Locations
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Image credit: Manuel Pastor, Rachel Morello-Frosch, Jim Sadd
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Validating Hazard Proximity Locations
• Near housing• Changes local hazard
proximity score
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Image credit: Manuel Pastor, Rachel Morello-Frosch, Jim Sadd
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Validating Hazard Proximity Locations
• Large footprint of facility
• Better represented by area
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Image credit: Manuel Pastor, Rachel Morello-Frosch, Jim Sadd
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US-Mexico Border
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Statewide Scoring
• Hazard Proximityand
• Ozone, diesel PM, PM2.5, toxics
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Regional Scoring
• Hazard Proximityand
• Ozone, diesel PM, PM2.5, toxics
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US-Mexico Border: Improving Cumulative Impacts Mapping
• Improve accuracy of pollution burden at the US-Mexico border
• Contract with SDSU to create geospatial database of Mexican emission sources
• Low-cost sensor networks in Imperial Valley and San Ysidro
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Thank you