@article{
 title = {Temporal variations and spatial distribution of ambient PM2.2 and PM10 concentrations in Dhaka, Bangladesh.},
 type = {article},
 year = {2006},
 identifiers = {[object Object]},
 keywords = {Air Pollutants,Air Pollutants: analysis,Bangladesh,Biomass,Environmental Monitoring,Particle Size,Public Policy,Vehicle Emissions,Vehicle Emissions: analysis},
 pages = {36-45},
 volume = {358},
 websites = {http://www.ncbi.nlm.nih.gov/pubmed/16165193},
 month = {4},
 day = {1},
 id = {207580fe-200c-36f0-ab45-78c68e4acd4c},
 created = {2014-05-31T04:12:14.000Z},
 accessed = {2013-05-26},
 file_attached = {true},
 profile_id = {9edae5ec-3a23-3830-8934-2c27bef6ccbe},
 group_id = {63e349d6-2c70-3938-9e67-2f6483f6cbab},
 last_modified = {2014-11-19T06:00:54.000Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
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 abstract = {Concentrations and characteristics of airborne particulate matter (PM(10), PM(2.2) and BC) on air quality have been studied at two air quality-monitoring stations in Dhaka, the capital of Bangladesh. One site is at the Farm Gate area, a hot spot with very high pollutant concentrations because of its proximity to major roadways. The other site is at a semi-residential area located at the Atomic Energy Centre, Dhaka Campus, (AECD) with relatively less traffic. The samples were collected using a 'Gent' stacked filter unit in two fractions of 0-2.2 mum and 2.2-10 mum sizes. Samples of fine (PM(2.2)) and coarse (PM(2.2-10)) airborne particulate matter fractions collected from 2000 to 2003 were studied. It has been observed that fine particulate matter has a decreasing trend, from prior year measurements, because of Government policy interventions like phase-wise plans to take two-stroke three-wheelers off the roads in Dhaka and finally banned from January 1, 2003. Other policy interventions were banning of old buses and trucks to ply on Dhaka city promotion of the using compressed natural gas (CNG), introducing air pollution control devices in vehicles, etc. It was found that both local (mostly from vehicular emissions) and possibly some regional emission sources are responsible for high PM(2.2) and BC concentrations in Dhaka. PM(2.2), PM(2.2-10) and black carbon concentration levels depend on the season, wind direction and wind speed. Transport related emissions are the major source of BC and long-range transportation from fossil fuel related sources and biomass burning could be another substantial source of BC.},
 bibtype = {article},
 author = {Begum, Bilkis a and Biswas, Swapan K and Hopke, Philip K},
 journal = {The Science of the total environment},
 number = {1-3}
}

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