| DOI: | 10.1016/j.atmosenv.2014.06.053
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| Scopus记录号: | 2-s2.0-84903721935
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| 论文题名: | Measuring ambient particulate matter in three cities in Cameroon, Africa |
| 作者: | Antonel J; , Chowdhury Z
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| 刊名: | Atmospheric Environment
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| ISSN: | 0168-2563
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| EISSN: | 1573-515X
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| 出版年: | 2014
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| 卷: | 95 | | 起始页码: | 344
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| 结束页码: | 354
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| 语种: | 英语
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| 英文关键词: | Cameroon
; Carbonaceous particles
; Dust
; Particulate matter
; Spatial variability
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| Scopus关键词: | Air quality
; Dust
; Ambient particulate Matter
; Average concentration
; Cameroon
; Carbonaceous particles
; Mass concentration
; Particle number concentration
; Particulate Matter
; Spatial variability
; Particles (particulate matter)
; carbon
; carbon monoxide
; organic carbon
; aerosol composition
; air quality
; ambient air
; carbon
; concentration (composition)
; dust
; food processing
; fractionation
; particle size
; particulate matter
; roadside environment
; spatial variation
; air pollution
; air quality
; ambient air
; article
; Cameroon
; combustion
; cooking
; dust
; food processing
; fractionation
; particulate matter
; priority journal
; rural area
; traffic and transport
; Bafoussam
; Bamenda
; Cameroon
; Centre [Cameroon]
; Nord Ouest Province
; Ouest Province
; Yaounde
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| Scopus学科分类: | Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
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| 英文摘要: | This is the first study of particulate matter (PM) air pollution in Cameroon. In this study, mass concentration and PM size fractions as well as carbonaceous contribution to PM are measured in Bafoussam, Bamenda, and Yaoundé, Cameroon. Average concentrations in Bafoussam, Bamenda, and Yaoundé of PM2.5 are 67±14, 132±64, and 49±12μg/m3 and PM10 are 105±29, 141±107, and 65±21μg/m3, respectively. Daytime levels of PM2.5 and PM10 are seen to be higher than nighttime levels in all cities except Bamenda where nighttime levels are higher for both PM sizes. In Bafoussam, the average PM1.0 particle number concentration during the day is 19,800 pt/cc and during the evening is 15,200pt/cc. PM2.5/PM10 mass ratios are 0.65±0.05, 0.75±0.05, and 0.78±0.09 for Bafoussam, Bamenda, and Yaounde, respectively. Elemental carbon (EC) and organic carbon (OC) contribution to PM2.5 in Bafoussam, Bamenda, and Yaoundé are 3.9%, 2.9% and 12% for EC and 17.7%, 23.6%, and 34.2% for OC, respectively. After conducting spatial variability of PM mass concentration and size fractionation sampling at various locations within each of the three cities, we find that PM2.5 averages are highest during commercial meal preparation in Bafoussam (684±546μg/m3), and on the road in Bamenda (417±113μg/m3) and Yaoundé (110±57μg/m3). Additional air quality research in Central and West Africa is necessary to begin implementing policy steps that influence change and to advocate for improved health conditions in this rapidly expanding region of the world. © 2014 Elsevier Ltd. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/80910
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Graduate School of Public Health, San Diego State University, San Diego, CA 92182, United States
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| Recommended Citation: | |
Antonel J,, Chowdhury Z. Measuring ambient particulate matter in three cities in Cameroon, Africa[J]. Atmospheric Environment,2014-01-01,95
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