| 长江三角洲地区秸秆露天焚烧大气污染物排放清单及其在空气质量模式中的应用 |
| 摘要点击 3323 全文点击 1724 投稿时间：2011-07-16 修订日期：2011-09-07 |
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| 中文关键词 秸秆露天焚烧 大气污染物 排放清单 空气质量模式 |
| 英文关键词 crop residue open burning atmospheric pollutants emission inventory air quality model |
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| 中文摘要 |
| 基于长江三角洲江苏、安徽、浙江和上海地区2008年粮食产量的统计年鉴,结合作物谷草比、排放因子等估算了上述地区2008年秸秆焚烧排放污染物清单,重点完善了各县级市污染物排放.结果表明2008年江苏、安徽、浙江和上海地区SO2、NOx、 CO、 CO2、 PM2.5、 BC、 OC、 NH3、 CH4、 NMVOC的排放总量分别为14.28、 86.01、 1744.56、 36893.03、 517.54、 11.74、 114.63、 19.93、 89.37和208.57 kt.江苏中部和北部、安徽北部地区秸秆露天焚烧污染物排放较多,而江苏南部和浙江地区污染物排放量较少.将建立的秸秆露天焚烧排放污染物清单应用于WRF-CMAQ空气质量模式,结果表明,考虑秸秆焚烧排放源后,对PM10、CO等大气污染物的模拟能力大幅提高,模拟浓度比使用原始排放源分别提高42%和28%,模拟浓度与实测浓度的相关系数分别提高0.25和0.17,模拟值较使用原始排放源更加贴近实测值. |
| 英文摘要 |
| Based on the data of crop yields in Jiangsu, Anhui, Zhejiang provinces and Shanghai regions in 2008 from government statistics, and the total amount of crop residues, the mass ratio of crop residue to grain and emission factors of crop residue burning, the emission inventory of atmospheric pollutants on counties resolution were constructed over Yangtze River Delta. The results showed the pollutants including SO2, NOx, CO, CO2, PM2.5, BC, OC, NH3, CH4 and NMVOC were estimated at 14.28, 86.01, 1744.56, 36893.03, 517.54, 11.74, 114.63, 19.93, 89.37 and 208.57 kt respectively. The high value centers of emission sources were over the central and northern of Jiangsu province and the northern of Anhui provinces, and the emission sources over southern of Jiangsu and the Zhejiang provinces were lower. The emission inventory was used in a Regional Air Quality Modeling System, WRF-CMAQ. In comparison with the old emission inventory, the simulations of PM10, CO with emission of crop residues burning increased by 42% and 28% respectively and correlation coefficients between simulations and observations also increased by 0.25 and 0.17 respectively, which were more close to observations. |
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