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Particulate air pollution from combustion and construction in coastal and urban areas of China.
| Content Provider | Scilit |
|---|---|
| Author | Chen, Bing Chen, Jinsheng Zhao, Jinping Zhang, Fuwang |
| Copyright Year | 2011 |
| Description | In China, the areas that are undergoing rapid urban growth are faced with increasingly more complicated air pollution problems. Sources of air pollution need to be identified and their contributions quantified. In this study, $PM_{2.5}$ (particulate matter with aerodynamic diameters ≤2.5 μm), $PM_{2.5–10}$ (particulate matter with aerodynamic diameters 2.5–10 μm), organic carbon (OC), and elemental carbon (EC) concentrations were measured from April to July 2009 at four selected areas in Xiamen (the downtown area, an industrial park, a suburb, and one remote site). The contributions of carbonaceous aerosols to $PM_{2.5}$ and $PM_{2.5–10}$ were 20–30% and 10–20%, respectively, indicating that finer particles contained more carbonaceous aerosols. The EC concentrations in $PM_{2.5}$ at the downtown, industrial, suburb, and remote sites were 2.16 ± 0.61, 2.05 ± 0.45, 1.69 ± 0.54, and 0.65 ± 0.43 μg $m^{−3}$, respectively, showing a decrease from the urban and industrial hotspots to the surrounding areas. These data show that carbonaceous aerosols emitted from the combustion of fossil fuels in urban and industrial hotspots influence air quality at the regional scale. Higher levels of $PM_{2.5}$ and $PM_{2.5–10}$ were observed at the suburb site compared to the urban and industrial sites. Peak EC concentrations in $PM_{2.5}$ were observed during the morning and evening rush hours. However, peak $PM_{2.5}$ levels at the suburb site were observed around noon, which coincides with construction work hours, instead of the morning and evening rush hours when emissions from combustion dominated. These findings indicate that both fuel combustion and construction have exacerbated air pollution in coastal and urban areas in China. |
| Related Links | http://www.tandfonline.com/doi/pdf/10.1080/10473289.2011.603995?needAccess=true |
| Ending Page | 1165 |
| Page Count | 6 |
| Starting Page | 1160 |
| ISSN | 10962247 |
| e-ISSN | 21622906 |
| DOI | 10.1080/10473289.2011.603995 |
| Journal | Journal of the Air & Waste Management Association |
| Issue Number | 11 |
| Volume Number | 61 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2011-10-31 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of the Air & Waste Management Association Environmental Engineering Environmental Sciences Air Pollution Pm2.5 Combustion Aerosols Construction Carbonaceous Suburb Hours |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atmospheric Science Pollution Waste Management and Disposal Management, Monitoring, Policy and Law |
