Characterization of Odorous Compounds (VOC and Carbonyl Compounds) in the Ambient Air of Yeosu and Gwangyang, Large Industrial Areas of South Korea

Table 5

Statistical summaries of the VOC at different sites in the present study.

Sites	VOC	Detection frequency	Mean (ppb)	S.D. (ppb)	Median (ppb)	Min (ppb)	Max (ppb)
YI; ()	Ethyl acetate	79%	0.39	1.29	0.11	N.D.	16.75
	Benzene	100%	3.65	6.86	1.75	0.14	38.31
	Methyl isobutyl ketone	26%	0.11	0.23	N.D.	N.D.	1.46
	Toluene	100%	3.25	4.40	2.01	0.06	38.61
	m, p-Xylenes	100%	2.50	3.57	1.17	0.06	25.61
	Styrene	48%	0.25	0.44	N.D.	N.D.	4.07
	o-Xylene	100%	0.58	0.65	0.34	0.02	4.47
YR; ()	Ethyl acetate	76%	0.11	0.12	0.07	N.D.	0.49
	Benzene	100%	1.07	1.02	0.75	0.04	5.93
	Methyl isobutyl ketone	9%	0.01	0.04	N.D.	N.D.	0.23
	Toluene	100%	1.61	2.09	0.98	0.05	17.41
	m, p-Xylenes	99%	0.36	0.35	0.20	N.D.	1.71
	Styrene	29%	0.15	0.34	N.D.	N.D.	1.82
	o-Xylene	98%	0.10	0.09	0.07	N.D.	0.47
GI; ()	Ethyl acetate	62%	0.12	0.22	0.05	N.D.	1.64
	Benzene	100%	1.64	3.83	0.40	0.06	27.12
	Methyl isobutyl ketone	6%	0.01	0.05	N.D.	N.D.	0.37
	Toluene	100%	0.97	0.87	0.75	0.04	8.45
	m, p-Xylenes	99%	1.09	5.78	0.28	N.D.	27.36
	Styrene	4%	0.01	0.05	N.D.	N.D.	0.46
	o-Xylene	97%	0.28	1.22	0.08	N.D.	16.06
GR; ()	Ethyl acetate	73%	0.10	0.13	0.06	N.D.	0.83
	Benzene	100%	0.59	0.72	0.40	0.07	6.66
	Methyl isobutyl ketone	3%	<0.01	0.03	N.D.	N.D.	0.29
	Toluene	100%	0.98	0.77	0.78	0.01	4.10
	m, p-Xylenes	98%	0.37	0.36	0.23	N.D.	2.43
	Styrene	2%	<0.01	0.02	N.D.	N.D.	0.27
	o-Xylene	95%	0.11	0.10	0.08	N.D.	0.52
SC; ()	Ethyl acetate	53%	0.07	0.11	0.03	N.D.	1.11
	Benzene	100%	0.38	0.25	0.33	0.04	2.11
	Methyl isobutyl ketone	1%	<0.01	0.01	N.D.	N.D.	0.12
	Toluene	100%	0.68	0.60	0.52	0.01	5.02
	m, p-Xylenes	97%	0.20	0.19	0.17	N.D.	1.34
	Styrene	0%	<0.01	0.01	N.D.	N.D.	0.12
	o-Xylene	87%	0.06	0.06	0.05	N.D.	0.36

N.D.: not detected.