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

Table 2

Interannual and intraseasonal correlation coefficient between PM_2.5, and meteorological parameters (wind speed: WS, temperature: Temp., and relative humidity: RH) in Delhi during 2007 to 2009.

	2007	2008	2009	Overall
	PM2.5	PM2.5	PM2.5	PM2.5
WS	−0.30	−0.56	−0.30	−0.38
Temp.	−0.60	−0.54	−0.56	−0.59
RH	0.03	0.11	−0.01	0.14
	Winter	Summer	Monsoon	Postmonsoon
	PM2.5	PM2.5	PM2.5	PM2.5
WS	−0.50	−0.16	−0.09	−0.58
Temp.	−0.58	−0.02	−0.11	−0.51
RH	0.19	−0.48	−0.18	0.35