Research Article

Interannual and Intraseasonal Variability in Fine Mode Particles over Delhi: Influence of Meteorology

Table 1

Yearly mean mass concentrations of PM2.5, temperature, relative humidity, and wind speed along with their standard deviation (std.) and minimum (min) and maximum (max) values in Delhi during 2007 to 2009.

Mass concentration of PM2.5 ( g m−3)Temperature (°C)Relative humidity (%) Wind speed (km/hr)
Year200720082009200720082009200720082009200720082009

Mean77.5135.487.125.425.126.064.263.959.15.05.24.7
Std.88.877.862.27.06.56.945.915.215.93.43.53.9
Max367.3367.9345.939.035.037.888.097.097.018.918.919.4
Min12.224.712.09.49.211.8242520CalmCalmCalm