Spatio-Temporal Variation Characteristics of PM<sub>2.5</sub> in the Beijing-Tianjin-Hebei Region, China, from 2013 to 2018.

Int J Environ Res Public Health · 2019 · PMC6862089 · PMID 31689921

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showed a trendno p-value reported

Spatial Autocorrelation Analysis Moran’s I in the BTH region was positive for the six-year study period, indicating that the average PM 2.5 mass concentration in 13 cities showed spatial agglomeration, and as time went on, the spatial agglomeration level showed a trend of first rising and then declining ( Table 2 ).

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