空气质量指数
污染物
环境科学
空气污染
中国
背景(考古学)
空气污染物标准
空气污染物
臭氧
环境保护
人口
地理
环境工程
气象学
环境卫生
有机化学
考古
化学
医学
作者
N N Wang,Chuanyong Zhu,Wei Li,Mingquan Qiu,B L Wang,X Y Li,Bo Jiang,Xinyue Qu,Z S Li,Haomiao Cheng
标识
DOI:10.1007/s13762-022-04651-5
摘要
As one of the most polluted provinces in China, air pollution events occur frequently in Shandong. Based on the hourly (or daily) concentrations of six air pollutants (PM2.5, PM10, O3, NO2, SO2 and CO), the situations of air quality improvement in three kinds of cities (key cities, coastal cities and general cities) are assessed comprehensively during 2014-2020. Contrary to the daily maximum 8-h average ozone (MDA8 O3), the annual average concentrations of other pollutants show the downward trends during 2014-2020. Therein, the improvement rates of annual average concentrations of air pollutants in key cities are highest. By 2020, the day proportions of O3 as the primary pollutant are up to 38% in three kinds of cities. Besides, due to the impact of COVID-19, the monthly average concentrations of PM2.5, PM10, NO2, SO2 and CO in February 2020 decrease by 32.1-49.5% year-on-year. There are still about 50% of population exposed to high-risk regions (Ri > 2), which are mainly concentrated in main urban areas and industrial areas. Thus, the adjustment of industrial structure and energy composition in the context of carbon peak and carbon neutrality should be implemented in the future.The online version contains supplementary material available at 10.1007/s13762-022-04651-5.
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