Table 2—

Univariate statistics for pollution and weather for the study period

MeansdMinimumMaximum
PM µg·m−323.58.49.044.0
BS µg·m−316.88.45.060.0
SO2 µg·m−311.65.73.030.0
NO2 µg·m−353.816.923.0111.0
O3 µg·m−358.924.510.0121.0
Temperature °C14.44.83.727.6
Humidity %63.711.834.887.8
  • PM: suspended particles with an aerodynamic diameter of <13 µm

  • BS: suspended black particulates

  • SO2: sulphur dioxide

  • NO2: nitrogen dioxide

  • O3: ozone