Meteorological Influences on Seasonal Variation of Fine Particulate Matter in Cities over Southern Ontario, Canada

Table 2

Correlation coefficients of daily PM_2.5 between the 12 cities. The cities are ordered by descending latitude (see Table 1 and Figure 1(a)).

	Thunder Bay	Sault Ste. Marie	Sudbury	North Bay	Cornwall	Barrie	Toronto	Oakville	Hamilton	London	Sarnia	Windsor
Thunder Bay	1	0.61	0.46	0.43	0.21	0.38	0.35	0.33	0.35	0.35	0.40	0.38
Sault Ste. Marie	0.61	1	0.83	0.78	0.48	0.68	0.62	0.60	0.60	0.62	0.67	0.64
Sudbury	0.46	0.83	1	0.91	0.60	0.78	0.73	0.71	0.71	0.71	0.73	0.69
North Bay	0.43	0.78	0.91	1	0.67	0.83	0.76	0.74	0.72	0.70	0.74	0.68
Cornwall	0.21	0.48	0.60	0.67	1	0.71	0.73	0.74	0.67	0.66	0.64	0.62
Barrie	0.38	0.68	0.78	0.83	0.71	1	0.94	0.93	0.87	0.84	0.86	0.79
Toronto	0.35	0.62	0.73	0.76	0.73	0.94	1	0.96	0.90	0.87	0.84	0.82
Oakville	0.33	0.60	0.71	0.74	0.74	0.93	0.96	1	0.91	0.87	0.82	0.81
Hamilton	0.35	0.60	0.71	0.72	0.67	0.87	0.90	0.91	1	0.85	0.78	0.77
London	0.35	0.62	0.71	0.70	0.66	0.84	0.87	0.87	0.85	1	0.90	0.91
Sarnia	0.40	0.67	0.73	0.74	0.64	0.86	0.84	0.82	0.78	0.90	1	0.88
Windsor	0.38	0.64	0.69	0.68	0.62	0.79	0.82	0.81	0.77	0.91	0.88	1