Table 3—

Pearson correlation coefficients for pollution and weather for the study period

PMBSSO2NO2O3TemperatureHumidity
PM1.0
BS0.59***1.0
SO20.70***0.65***1.0
NO20.54***0.92***0.69***1.0
O30.21#0.21*−0.020.091.0
Temperature0.040.12−0.34***−0.010.65***1.0
Humidity−0.41**−0.26*−0.27**−0.32**−0.70***−0.35***1.0
  • PM: suspended particles with an aerodynamic diameter of <13 µm

  • BS: suspended black particulates

  • SO2: sulphur dioxide

  • NO2: nitrogen dioxide

  • O3: ozone

  • *: p<0.05

  • **: p<0.01

  • ***: p<0.001

  • #: p<0.10