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Author: California Environmental Protection Agency. Air Resources Board
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 78
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Book Description
Author: California Environmental Protection Agency. Air Resources Board
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 78
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Book Description
Author: Graeme Nowell Carvlin
Publisher:
ISBN:
Category :
Languages : en
Pages : 81
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Book Description
The Imperial Project was a collaboration between community organizations, academia, and state partners created to investigate levels of particulate matter, a criteria air pollutant, in the highly impacted community of Imperial County. Community-based participatory research (CBPR) techniques were used to ensure that community members were engaged in each step of the research process. To cost-effectively measure air quality levels at a high temporal and spatial resolution a new low-cost community air monitor was designed and deployed in a 40-monitor network. These monitors were calibrated to regulatory beta-attenuation monitors (BAMs) operated by the California Air Resources Board. The calibration equation was validated by siting a mobile version of the BAM monitor called an E-BAM at six sites throughout Imperial County. The relatively high spatial density of the community air monitoring network enabled the creation of a land use regression (LUR) model. The LUR model estimated PM2.5, PM less than 2.5 μm in diameter, and PM[subscript]coarse, PM between 2.5 and 10 μm in diameter, using land use and meteorology. Back-trajectory analyses were performed to help explain which wind conditions lead to high PM in Imperial County. The combined effect of wind speed, wind direction, and seasonality were explored using polar plots. These analyses, along with the estimated emissions and other information detailed in the Imperial County State Implementation Plans, provide a comprehensive view of the sources of particulate matter in Imperial County. Real-time data from the monitoring network is displayed on a public website, IVAN Air, run by the community group Comite Civico del Valle (CCV). CCV and other project partners have taken the information learned from this project and engaged community residents in learning about their air quality and the actions they can take to reduce their exposure.
Author:
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 96
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Author:
Publisher:
ISBN:
Category : Air
Languages : en
Pages :
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Author: María del Carmen Durán
Publisher:
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Category :
Languages : en
Pages :
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Particulate matter is one of six criteria pollutants regulated by the U.S. EPA. The purpose of this paper is to evaluate the current particulate matter (PM10 and PM2.5) air monitoring network operated by the Bay Area Air Quality Management District (BAAQMD), or Air District, and to make management recommendations on how the air monitoring network may be improved. Improving the air monitoring network can lead to a better understanding of sources of particulates in the San Francisco Bay Area, which could lead to better modeling and more effective mitigation of pollutants. This paper focuses on seven sites across nine counties in the San Francisco Bay Area. Data from the seven sites were gathered from the Air District and a U.S. EPA database, which included mass concentration, ion speciation, organic and elemental carbon composition, and metals speciation for both PM10 and PM2.5. Monthly averages ranging from 2011-2015 of these components were analyzed and used to evaluate whether the Air District was effectively monitoring for particulates. Results show that the San Francisco Bay Area should focus on PM2.5 analysis, as PM10 levels are significantly lower than the National Ambient Air Quality Standard. While PM2.5 is the primary particulate matter class of concern, PM10 still needs to be monitored because of monitoring requirements, but utilizing beta attenuation monitors (BAMs) technology will be an acceptable substitute.
Author:
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 204
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Author:
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 532
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Author: Janet Brennan
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 218
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Author: California. Air Resources Board
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 44
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Book Description
Author: United States. Environmental Protection Agency. National Air Data Branch
Publisher:
ISBN:
Category : Air quality
Languages : en
Pages : 592
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Book Description
