. 2009 Oct 28;3(1):53–64. doi: 10.1007/s11869-009-0051-1

Table 2.

Analysis of variance of diffent air pollutants

Parameter	Comparison	Sum of squares	Degree of freedom (df)	Mean square	F-Value	Significant
PM₁₀	Between groups	28793.584	3	9597.861	21.921	.000
	Within groups	204906.28	468	437.834
	Total	233699.86	471
NO₂	Between Groups	.058	3	.019	1417.428	.000
	Within Groups	.006	469	.000
	Total	.064	472
O₃	Between Groups	.004	3	.001	97.273	.000
	Within Groups	.006	392	.000
	Total	.010	395
CO	Between Groups	81.908	3	27.303	504.150	.000
	Within Groups	21.229	392	.054
	Total	103.137	395
SO₂	Between Groups	.004	3	.001	277.244	.000
	Within Groups	.002	467	.000
	Total	.006	470