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    Data sources and descriptions. by Zeduo Zou (21672789)

    Published 2025
    “…As the results show, during the study period: (1) Temporal Trends: annual PM2.5 concentrations exhibited significant declines, with BTH decreasing from 1004.71 μg/m<sup>3</sup> (2006) to 528 μg/m<sup>3</sup> (2020), YRD from 1434.81 μg/m<sup>3</sup> (2008) to 621 μg/m<sup>3</sup>, and PRD from 405.02 μg/m<sup>3</sup> (2007) to 292 μg/m<sup>3</sup>. …”
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