Research Article

Association between Particulate Matter Pollution Concentration and Hospital Admissions for Hypertension in Ganzhou, China

Figure 1

Box plot of the annual air pollution concentration in Ganzhou City, 2016–2020: (a) annual distribution of PM2.5 concentrations in 2016–2020, (b) annual distribution of PM10 concentrations in 2016–2020, (c) annual distribution of SO2 concentrations in 2016–2020, (d) annual distribution of NO2 concentrations in 2016–2020, (e) annual distribution of O3 concentrations in 2016–2020, and (f) annual distribution of CO concentrations in 2016–2020. “” indicates a difference (0.001 ≤  < 0.05) between the contaminant concentration in the marker year and the previous year comparison. “∗∗” indicates more pronounced differences ( < 0.001) in pollutant concentrations in the marker year than in the previous year.
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