Spatial Variability and Application of Ratios between BTEX in Two Canadian Cities

Table 3

Mean, median, and coefficient of variation (CV) of interspecies ratios in Windsor and Sarnia.

		T/B	E/B	(m + p)/B	O/B	(m + p)/E
Windsor 3 years fall (𝑁=144)	Mean	3.91	0.59	2.02	0.68	3.03
	Median	3.42	0.60	1.90	0.61	2.86
	CV (%)	30	22	25	28	22
Windsor fall 2005 (𝑁=42)	Mean	3.72	0.58	1.60	0.59	2.76
	Median	3.44	0.59	1.65	0.60	2.77
	CV (%)	31	21	21	21	7
Sarnia fall 2005 (𝑁=37)	Mean	2.92	0.52	1.40	0.56	2.63
	Median	2.89	0.52	1.38	0.55	2.70
	CV (%)	27	28	33	33	9