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

Table 6

Statistical summaries of carbonyl compounds at different sites of the present study.

Sites	Carbonyl compounds	Detection frequency	Mean (ppb)	S.D. (ppb)	Median (ppb)	Min (ppb)	Max (ppb)
YI; ()	Formaldehyde	96%	7.40	5.74	4.81	N.D.	26.93
	Acetaldehyde	96%	2.75	2.02	2.24	N.D.	9.89
	Propionaldehyde	60%	0.29	0.40	0.18	N.D.	2.67
	Methyl ethyl ketone	74%	2.57	3.73	1.06	N.D.	15.92
	Butyraldehyde	5%	0.06	0.34	N.D.	N.D.	2.67
	i-Valeraldehyde	11%	0.03	0.09	N.D.	N.D.	0.50
	n-Valeraldehyde	31%	0.11	0.22	N.D.	N.D.	0.95
YR; ()	Formaldehyde	99%	8.06	6.27	5.88	N.D.	31.38
	Acetaldehyde	97%	3.43	3.05	2.10	N.D.	15.74
	Propionaldehyde	50%	0.35	0.61	0.06	N.D.	2.97
	Methyl ethyl ketone	73%	2.05	2.93	0.96	N.D.	13.73
	Butyraldehyde	29%	0.56	1.25	N.D.	N.D.	6.08
	i-Valeraldehyde	12%	0.03	0.10	N.D.	N.D.	0.46
	n-Valeraldehyde	26%	0.05	0.11	N.D.	N.D.	0.48
GI; ()	Formaldehyde	99%	5.99	4.55	4.89	N.D.	30.52
	Acetaldehyde	99%	1.97	1.12	1.85	N.D.	5.35
	Propionaldehyde	44%	0.14	0.18	N.D.	N.D.	0.64
	Methyl ethyl ketone	91%	2.74	3.12	2.04	N.D.	20.56
	Butyraldehyde	4%	0.02	0.08	N.D.	N.D.	0.51
	i-Valeraldehyde	8%	0.02	0.06	N.D.	N.D.	0.39
	n-Valeraldehyde	28%	0.07	0.13	N.D.	N.D.	0.54
GR; ()	Formaldehyde	100%	7.15	5.54	5.45	1.65	28.66
	Acetaldehyde	100%	2.23	1.68	1.86	0.13	12.44
	Propionaldehyde	34%	0.17	0.47	N.D.	N.D.	3.92
	Methyl ethyl ketone	86%	2.29	3.02	1.86	N.D.	22.34
	Butyraldehyde	1%	0.01	0.05	N.D.	N.D.	0.44
	i-Valeraldehyde	4%	0.01	0.06	N.D.	N.D.	0.40
	n-Valeraldehyde	11%	0.03	0.08	N.D.	N.D.	0.37
SC; ()	Formaldehyde	98%	6.52	4.84	5.30	N.D.	25.81
	Acetaldehyde	98%	2.54	2.87	1.48	N.D.	18.38
	Propionaldehyde	38%	0.21	0.43	N.D.	N.D.	2.91
	Methyl ethyl ketone	78%	2.05	2.11	1.75	N.D.	8.59
	Butyraldehyde	10%	0.10	0.43	N.D.	N.D.	2.77
	i-Valeraldehyde	5%	0.03	0.15	N.D.	N.D.	0.84
	n-Valeraldehyde	18%	0.05	0.12	N.D.	N.D.	0.58

N.D.: not detected.