The long-term trends of PM10, O3 and NOx concentrations were analyzed using
Holland model (without meteorological-adjusted) and MM-Regression model (with
meteorological-adjusted) based on the data of ten EPA air quality stations from 1997
to 2006 in Kao-Ping area. The aim of this study was to determine the impact of
meteorological factors on the trends of these pollutants in Kao-Ping.
The annual variations (AV) of O3 was −0.496 % in Kaohsiung county, −0.200 in
Pingtung county, and 0.277 % in Kaohsiung city, showing different characteristics in
Kao-Pin area. On average, the annual variations (AV) influenced by meteorological
factors were: PM10: 0.205 %, O3: −0.127 %, and NOx: 0.338 %. After being adjusted
by meteorological factors, the seasonal variations (SV) were about 1, indicating little
seasonal change.
In Kao-Ping region, the influence by meteorological factors was 9.566 %, 8.026
% and 7.351 % in PM10, O3, NOx, respectively. In total, the average influence was
8.314% in Kao-Ping region, with 7.791% in Kaohsiung city (8.481% at Cianjin, the
most influenced area), 9.439% in Kaohsiung County (10.368% at Linyuan, the most
influenced area), and 7.110% in Pingtung County (7.516% at Chaojhou, the most
influenced area). PM10 was influenced most by meteorological factors (PM10: 9.566
%, O3: 8.026 %, NOx: 7.351 %) in Kao-Ping area..
In Kao-Ping region, the contributions by individual meteorological factors were
70.78% in wind speed, 38.23% in total cloudiness, 36.56% in sunshine hour, 19.86%
in temperature, 12.40% in atmospheric pressure, 5.96% in relative humidity and
1.27% in wind direction. The influences by the wind speed were 66.62 %, 72.35 %
and 72.31 % on the concentrations of PM10, O3, NOx, respectively. Wind speed was
the most important factor controlling concentration trends in Kao-Ping area.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0629107-170657 |
| Date | 29 June 2007 |
| Creators | Chen, Chia-Hsiu |
| Contributors | Shui-Jen Chen, Chen, Kang-Shin, Ming-Shean Chou |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0629107-170657 |
| Rights | campus_withheld, Copyright information available at source archive |
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