Air quality improvement assessment and exposure risk of Shandong Province in China during 2014 to 2020.

ABSTRACT: 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 (PM_2.5, 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 c

SUBMITTER: Wang NN 

PROVIDER: S-EPMC9761030 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature