Impacts of coal burning on ambient PM2.5 pollution in China
| Autor: | Qiao Ma, Mohammad H. Forouzanfar, Joseph Frostad, Aaron Cohen, Bin Zhao, Wei Zhou, Siyi Cai, Michael Brauer, Jiming Hao, Richard T. Burnett, Randall V. Martin, Shuxiao Wang, Jingkun Jiang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Atmospheric Science
010504 meteorology & atmospheric sciences Chemical transport model business.industry Environmental engineering Coal combustion products Energy consumption 010501 environmental sciences 01 natural sciences Mining engineering Pollution in China Secondary sector of the economy Environmental science Coal Emission inventory business Air quality index 0105 earth and related environmental sciences |
| Zdroj: | Atmospheric Chemistry and Physics. 17:4477-4491 |
| ISSN: | 1680-7324 |
| Popis: | High concentration of fine particles (PM2.5), the primary concern about air quality in China, is believed to closely relate to China's large consumption of coal. In order to quantitatively identify the contributions of coal combustion in different sectors to ambient PM2. 5, we developed an emission inventory for the year 2013 using up-to-date information on energy consumption and emission controls, and we conducted standard and sensitivity simulations using the chemical transport model GEOS-Chem. According to the simulation, coal combustion contributes 22 µg m−3 (40 %) to the total PM2. 5 concentration at national level (averaged in 74 major cities) and up to 37 µg m−3 (50 %) in the Sichuan Basin. Among major coal-burning sectors, industrial coal burning is the dominant contributor, with a national average contribution of 10 µg m−3 (17 %), followed by coal combustion in power plants and the domestic sector. The national average contribution due to coal combustion is estimated to be 18 µg m−3 (46 %) in summer and 28 µg m−3 (35 %) in winter. While the contribution of domestic coal burning shows an obvious reduction from winter to summer, contributions of coal combustion in power plants and the industrial sector remain at relatively constant levels throughout the year. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|