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Table 2 Pearson correlation coefficients for meteorology factors and air pollutants

From: Carbon monoxide and risk of outpatient visits due to cause-specific diseases: a time-series study in Yichang, China

  PM2.5 PM10 CO NO2 SO2 O3 Temperature RH
PM2.5 1.00        
PM10 0.94 1.00       
CO 0.77 0.67 1.00      
NO2 0.70 0.72 0.55 1.00     
O3 −0.40 −0.29 −0.46 −0.38 1.00    
SO2 0.61 0.64 0.42 0.51 −0.24 1.00   
Temperature −0.62 −0.53 −0.53 −0.49 0.57 −0.54 1.00  
RH −0.18 −0.30 0.05 −0.33 − 0.16 − 0.29 0.15 1.00
  1. Abbreviation: RH relative humidity