Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Baoshan Environmental Protection Bureau, Shanghai 201900, China.
Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.
J Environ Sci (China). 2018 Sep;71:127-135. doi: 10.1016/j.jes.2018.01.014. Epub 2018 Feb 3.
As the largest iron and steel producer in China, a part of Baosteel moved out of Shanghai deserves close attention due to its environmental impact. To understand the effect of Baosteel emission control on air quality in Shanghai, daily PM, PM, SO, NO and CO were measured from 2010 to 2016. Concentrations of pollutants in Baoshan District presented a decreased trend during 2010-2016, with a reduction rate of 28.6% for PM, 67.3% for SO, 8.6% for NO and 42.0% for CO. However, fine particle pollution in Baoshan District during 2012-2016 seems to become more prominent, with PM concentration of 47±28, 45±33, 38±24, 54±41 and 51±34μg/m3, respectively, indicating a slight increase of 8.5% in PM. Concentrations of PM and CO decreased by 12.5% and 33.8% in the second half year in 2016 (compared with that in 2015) probably due to closure of blast furnace of Baosteel. Baosteel was identified as the largest pollution source in Baoshan District. Emission from Baosteel accounted for 58.0% of SO, 43.6% of NO and 79.3% of dust in total emission from Baoshan District during 2010-2015. Meanwhile, pollutant emission and coal consumption from Baosteel decreased by 52.0% for SO, 40.1% for NO, 15.7% for dust and 22% for coal consumption. Energy consumption in Baoshan District reduced by 31% from 2011 to 2015. Air quality improvement in Shanghai was attributed to local emission reduction, together with regional air quality improvement.
作为中国最大的钢铁生产商，宝钢的一部分迁往外地，这对上海的环境影响值得关注。为了了解宝钢排放控制对上海空气质量的影响，我们在 2010 年至 2016 年期间对每日 PM10、PM2.5、SO2、NO 和 CO 进行了测量。2010-2016 年期间，宝山区污染物浓度呈下降趋势，PM10 下降了 28.6%，SO2 下降了 67.3%，NO 下降了 8.6%，CO 下降了 42.0%。然而，2012-2016 年期间，宝山区细颗粒物污染似乎更加突出，PM2.5 浓度分别为 47±28、45±33、38±24、54±41 和 51±34μg/m3，表明 PM2.5 略有增加 8.5%。2016 年下半年（与 2015 年相比），宝钢高炉关闭可能导致 PM 和 CO 浓度分别下降 12.5%和 33.8%。宝钢被确定为宝山区最大的污染源。2010-2015 年期间，宝钢排放的 SO2、NO 和 Dust 分别占宝山区总排放量的 58.0%、43.6%和 79.3%。同时，宝钢 SO2、NO、Dust 和煤炭消耗分别减少了 52.0%、40.1%、15.7%和 22.0%。2011 年至 2015 年期间，宝山区能源消耗减少了 31%。上海空气质量的改善归因于本地减排，以及区域空气质量的改善。
