Research Article

Relationships between Ambient Ozone Concentration Changes in Southwestern Taiwan and Invasion Tracks of Tropical Typhoons

Table 3

Ozone daily peak concentration observed using air quality monitoring stations located in Southern Taiwan before and after the invasion of typhoon Nanmadol (August 24–28, 2011).

Air quality station Position (Lat/Lon)Daily peak O3 concentrations (unit: ppb)
August 24August 25August 26August 27August 28
4 days before sea warning3 days before sea warning2 days before sea warning1 day before sea warningIssuing sea warning

Near mountain stations
(M-1) Meinong 22°53′00.9′′ (N)
120°31′49.95′′ (E)
5270957525
(M-2) Chaozhou 22°31′23.19′′ (N)
120°33′40.23′′ (E)
6785887731
(M-3) Pingtung22°40′23.09′′ (N)
120°29′16.92′′ (E)
46831288638

Between ocean and mountain group
(B-1) Qiaotou 22°45′27.02′′ (N)
120°18′20.48′′ (E)
65741147856
(B-2) Nanzi22°44′1.20′′ (N)
120°19′41.84′′ (E)
58741127451
(B-3) Renwu22°41′20.6′′ (N)
120°19′57.47′′ (E)
55751059149
(B-4) Fengshan22°37′38.61′′ (N)
120°21′29.10′′ (E)
5181957150
(B-5) Dailao 22°33′56.69′′ (N)
120°25′30.3′′ (E)
65901278043

Near ocean stations
(O-1) Zuoying 22°40′29.50′′ (N)
120°17′34.50′′ (E)
59771039358
(O-2) Qianjin 22°37′57.24′′ (N)
120°17′17.11′′ (E)
56691038355
(O-3) Qianzhen 22°36′19.39′′ (N)
120°18′27.23′′ (E)
4660877149
(O-4) Linyuan 22°28′46.2′′ (N)
120°24′42.3′′ (E)
80731006945
(O-5) Xiaogang 22°33′57.00′′ (N)
120°20′15.85′′ (E)
5173926352

Oversea station
(OS-1) Magong23°34′8.51′′ (N)
119°33′58.17′′ (E)
2879456148

p.s.: occurrence of peak O3 concentration from −90 to +24 hrs.