Skip to main content

Table 2 Spearman correlation between air pollutants and meteorological conditions in Ningbo, China, 2011–2015

From: The short term burden of ambient fine particulate matter on chronic obstructive pulmonary disease in Ningbo, China

  PM2.5 PM10 SO2 NO2 Temperature (°C) Relative humidity (%)
PM2.5 1.00 0.95 0.78 0.76 −0.47 −0.28
PM10 0.95 1.00 0.83 0.76 −0.46 −0.42
SO2 0.78 0.83 1.00 0.79 −0.57 −0.42
NO2 0.76 0.76 0.79 1.00 −0.59 −0.13
Temperature (°C) −0.47 −0.46 −0.57 −0.59 1.00 0.13
Relative humidity (%) −0.28 −0.42 −0.42 −0.13 0.13 1.00