Chemical Characteristics of High PM Episodes Occurring in Spring 2014, Seoul, Korea

Table 3

Several indicators for acidic condition and oxidation state of atmosphere.

Chemicals	Annual average	Case	Case
_eq/_eq	1.28	0.75	0.95
Ca^2+_eq/_eq	0.19	0.04	0.92
SOR	0.22	0.39	0.34
NOR	0.08	0.15	0.13
(SOR temperature)	0.075	0.027	0.003
(NOR temperature)	0.001	0.040	0.083
(SOR-RH)	0.027	0.380	0.107
(NOR-RH)	0.028	0.003	0.218