Table 3.

Effects of temperature, humidity, and wind speed meteorological parameters on the average concentrations of gas pollutants at different sites and on the overall averages of all sites

Site	Temperature		Humidity		Wind Speed		R
	t test	P value	t test	P value	t test	P value
Nitrogen dioxide
Industrial	1.123	0.283	1.483	0.152	1.452	0.168	0.518
Traffic	0.469	0.644	0.679	0.504	0.536	0.597	0.249
Commercial	1.609	0.122	1.326	0.198	1.319	0.201	0.459
Residential	0.853	0.403	0.448	0.658	0.723	0.478	0.475
Overall Average	0.709	0.486	1.135	0.296	1.114	0.277	0.438
Sulfur dioxide
Industrial	3.470	0.002	0.328	0.746	1.175	0.253	0.692
Traffic	2.943	0.008	0.225	0.824	0.261	0.797	0.659
Commercial	4.165	0.000	0.390	0.700	0.806	0.429	0.765
Residential	3.084	0.005	0.048	0.962	1.082	0.291	0.680
Overall Average	3.615	0.002	0.222	0.826	0.882	0.387	0.722
Ozone
Industrial	2.724	0.012	0.715	0.482	1.065	0.298	0.556
Traffic	3.379	0.003	1.950	0.064	1.829	0.100	0.634
Commercial	2.605	0.016	0.678	0.505	0.558	0.582	0.544
Residential	2.737	0.012	0.939	0.358	0.869	0.394	0.541
Overall Average	3.004	0.007	1.087	0.289	1.107	0.280	0.575
Ammonia
Industrial	1.414	0.171	0.133	0.896	0.701	0.491	0.471
Traffic	0.326	0.747	0.637	0.531	0.283	0.780	0.138
Commercial	0.415	0.682	0.998	0.329	1.385	0.180	0.299
Residential	0.608	0.549	0.272	0.788	0.463	0.648	0.159
Overall average	0.322	0.750	0.398	0.694	0.839	0.411	0.200

R correlation coefficient