Relationships between Ambient Ozone Concentration Changes in Southwestern Taiwan and Invasion Tracks of Tropical Typhoons
Table 4
Ozone daily peak concentration observed using air quality monitoring stations located in Southern Taiwan before and after the invasion of typhoon Usagi (September 16~20, 2013).
Air quality station
Position (Lat/Lon)
Daily peak O3 concentrations (unit: ppb)
September 16
September 17
September 18
September 19
September 20
4 days before sea warning
3 days before sea warning
2 days before sea warning
1 day before sea warning
Issuing sea warning
Near mountain stations
(M-1) Meinong
22°53′00.9′′ (N) 120°31′49.95′′ (E)
55
64
108
121
64
(M-2) Chaozhou
22°31′23.19′′ (N) 120°33′40.23′′ (E)
52
83
141
90
101
(M-3) Pingtung
22°40′23.09′′ (N) 120°29′16.92′′ (E)
61
82
127
134
86
Between ocean and mountain group
(B-1) Qiaotou
22°45′27.02′′ (N) 120°18′20.48′′ (E)
71
67
117
101
79
(B-2) Nanzi
22°44′1.20′′ (N) 120°19′41.84′′ (E)
60
64
119
100
84
(B-3) Renwu
22°41′20.6′′ (N) 120°19′57.47′′ (E)
58
56
111
88
78
(B-4) Fengshan
22°37′38.61′′ (N) 120°21′29.10′′ (E)
44
66
134
90
83
(B-5) Dailao
22°33′56.69′′ (N) 120°25′30.3′′ (E)
50
79
142
109
86
Near ocean stations
(O-1) Zuoying
22°40′29.50′′ (N) 120°17′34.50′′ (E)
77
71
134
97
74
(O-2) Qianjin
22°37′57.24′′ (N) 120°17′17.11′′ (E)
65
55
117
87
70
(O-3) Qianzhen
22°36′19.39′′ (N) 120°18′27.23′′ (E)
65
66
110
92
65
(O-4) Linyuan
22°28′46.2′′ (N) 120°24′42.3′′ (E)
48
91
113
80
70
(O-5) Xiaogang
22°33′57.00′′ (N) 120°20′15.85′′ (E)
59
68
113
87
68
Oversea station
(OS-1) Magong
23°34′8.51′′ (N) 119°33′58.17′′ (E)
68
75
70
43
39
p.s.: occurrence of peak O3 concentration from −90 to +24 hrs.
