Quality screening for air quality monitoring data in China

Particulate matter data obtained from the national air quality monitoring network in China has become an essential and critical data source for many current and forthcoming studies as well as the formulation and implementation of air pollution regulatory policies on particulate matter (PM2.5 and PM10). However, the quality control of this data is dubitable and can affect many future studies and policies. This study identifies and elucidates two significant quality control issues with the data.

They are PM2.5 levels exceeding concurrent co-located PM10 levels and the registration of same concentrations for consecutive hours at some stations. Future studies utilizing particulate matter data need to acknowledge and address these issues to ensure accurate and reliable results.

Relevant Papers

Jianzheng Liu, Weifeng Li, Jie Li. 2016. Quality screening for air quality monitoring data in China. Environmental Pollution. doi: 10.1016/j.envpol.2016.06.037

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