@article{
 title = {Comparison of particle light scattering and fine particulate matter mass in central California.},
 type = {article},
 year = {2006},
 identifiers = {[object Object]},
 keywords = {Air Pollutants, Occupational,Air Pollutants, Occupational: analysis,California,Environmental Monitoring,Environmental Monitoring: methods,Light,Scattering, Radiation,Seasons},
 pages = {398-410},
 volume = {56},
 websites = {http://www.ncbi.nlm.nih.gov/pubmed/16681205},
 month = {4},
 id = {66feac7b-304d-3004-b032-423015891d71},
 created = {2014-05-31T04:11:49.000Z},
 file_attached = {true},
 profile_id = {9edae5ec-3a23-3830-8934-2c27bef6ccbe},
 group_id = {63e349d6-2c70-3938-9e67-2f6483f6cbab},
 last_modified = {2014-11-19T06:01:16.000Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 abstract = {Particle light scattering (Bsp) from nephelometers and fine particulate matter (PM2.5) mass determined by filter samplers are compared for summer and winter at 35 locations in and around California's San Joaquin Valley from December 2, 1999 to February 3, 2001. The relationship is described using particle mass scattering efficiency (sigmasp) derived from linear regression of Bsp on PM2.5 that can be applied to estimated PM2.5 from nephelometer data within the 24-hr filter sampling periods and between the every-6th-day sampling frequency. An average of sigmaSp = 4.9 m2/g was found for all of the sites and seasons; however, sigmasp averaged by site type and season provided better PM2.5 estimates. On average, the sigmasp was lower in summer than winter, consistent with lower relative humidities, lower fractions of hygroscopic ammonium nitrate, and higher contributions from fugitive dust. Winter average sigmasp were similar at non-source-dominated sites, ranging from 4.8 m2/g to 5.9 m2/g. The sigmasp was 2.3 m2/g at the roadside, 3.7 m2/g at a dairy farm, and 4.1 m2/g in the Kern County oilfields. Comparison of Bsp from nephelometers with and without a PM2.5 inlet at the Fresno Supersite showed that coarse particles contributed minor amounts to light scattering. This was confirmed by poorer correlations between Bsp and coarse particulate matter measured during a fall sampling period.},
 bibtype = {article},
 author = {Chow, Judith C and Watson, John G and Park, Kihong and Lowenthal, Douglas H and Robinson, Norman F and Magliano, Karen a},
 journal = {Journal of the Air & Waste Management Association (1995)},
 number = {4}
}

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