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. 2022 Jan 24;19(3):1286. doi: 10.3390/ijerph19031286

Figure 9.

Figure 9

Pearson’s correlation coefficients for air pollution concentrations and the incidence of seven respiratory infectious diseases in Shanghai and Zhejiang between 2017 and 2021. Note: (a): the data from Shanghai, (b): the data from Zhejiang. PM2.5: atmospheric particulate matter (PM) with a diameter of less than 2.5 μm, PM10: PM with a diameter of less than 10 μm, SO2: sulfur dioxide, NO2: nitrogen dioxide, O3: ozone, CO: carbon monoxide. * p-value < 0.05, ** p-value < 0.01, *** p-value < 0.001. PTB: Pulmonary tuberculosis.