"Control Strategy of Air Pollutants such as PM2.5 and Ozone"
「"Control Strategy of Air Pollutants such as PM2.5 and Ozone"」於資料集「EPQSummary_EnvironmentalMonitoringAndTesting」由單位「行政院環境保護署」的陳先生所提供，聯繫電話是02-2311-7722#2386，最近更新時間為：2023-07-30 01:01:45。 欄位Project Title的內容是"Control Strategy of Air Pollutants such as PM2.5 and Ozone" ， 欄位Project Subject的內容是"The purposes of this project include to evaluate the PM2.5 forecasting system, to analyze the water soluble chemical species in PM2.5, to evaluate the contributions of various sectors to PM2.5 and ozone based on TEDS9 and to evaluate the various control strategies based on cost/benefit analyses. The results show that the correct ratios of DAQI forecasting system for PM2.5 are the greatest, up to 99%, at northern and eastern Taiwan and are the least, about 97%, at Yuchinan air basin. The results of air quality index (AQI) shows that the major air pollutants are fine particles and ozone 8-hour average for AQI greater than 100. Note that the dominant pollutant for AQI greater than 200 is ozone 8-hour average.The concentrations of water soluble chemical species in PM2.5 are analyzed by ion chromatography. The results show that the major species are sulfate, ammonium, and nitrate. The fractions of sulfate are the greatest among all analyzed species and are greater than 20% at all sites; those of ammonium and nitrate are 9%～14% and 3%～12%, respectively. Among the analyzed water soluble organic species, the fractions of oxalate, 0.7%～0.9%, are the greatest except for the Yangmin site, followed by formate of 0.2%～0.7%. The concentrations of oxalate in southern Taiwan are greater than those in northern Taiwan and are greater in winter season. The contributions of biomass sources to oxalate are 7.5%～12.5% in Taiwan based on the ratios of oxalate and potassium and the greater contributions periods are in June and October to December, which are the major rice straw open burning periods in Taiwan. The concentrations of levoglucosan、mannosan、galactosan and threitol are greater in winter season, especially in November and December. Levoglucosan is also used as tracer to estimate the contributions of biomass sources to the ambient fine particle concentrations. The results show that the contributions of biomass sources to ambient fine particle concentrations are about 5～19% and 7～18% at central and Yuchinan air basins, respectively.The contributions of various sectors to the ambient fine particle and ozone concentrations are evaluated by Models-3/CMAQ. For every ten thousand tons of fine particles emitted, the contribution of cooking, 6.85%, is the greatest, followed by dust from paved road, 5.88%, and passenger car, 5.62%. For NOx, the contribution of printed circuit board,5.32%, is the greatest, followed by cooking, 3.83%, and two-stroke motorcylse, 1.03%. The annual average contribution of Taichung power plant to the ambient fine particle concentration is 2.3% in Taiwan based on the simulation by CMAQ. Note that the contribution to each site may be up to 6.3% at PM2.5 daily concentration greater than 50 μg/m3. The sensitivity analysis for ozone control has been conducted by observation based method using the ratio of H2O2 to HNO3. The results shows that VOC-control for northern Taiwan and NOx-control for central and southern Taiwan in ozone season.The cost/benefit analysis for fine particle control shows that the order of pollutant control is primary particle, SO2 and NOx. The amounts of primary fine particle, SO2 and NOx need to be reduced are 27300 tons, 89400 tons, and 178400 tons, respectively and these are 70.9%, 85.0%, and 51.9% of the emission of year 2013. However, these end-of-pipe control measures can only reduce the ambient fine particle concentration by 25%." ， 欄位Project Year的內容是2016 ， 欄位Organizer的內容是"Department of Air Quality Protection ＆amp; Noise Control" ， 欄位Executive Unit的內容是"財團法人成大研究發展基金會" ， 欄位Reporting download URL的內容是https://epq.epa.gov.tw ， 欄位Publish Date的內容是20170701 。
Project Title
"Control Strategy of Air Pollutants such as PM2.5 and Ozone"
Project Subject
"The purposes of this project include to evaluate the PM2.5 forecasting system, to analyze the water soluble chemical species in PM2.5, to evaluate the contributions of various sectors to PM2.5 and ozone based on TEDS9 and to evaluate the various control strategies based on cost/benefit analyses. The results show that the correct ratios of DAQI forecasting system for PM2.5 are the greatest, up to 99%, at northern and eastern Taiwan and are the least, about 97%, at Yuchinan air basin. The results of air quality index (AQI) shows that the major air pollutants are fine particles and ozone 8-hour average for AQI greater than 100. Note that the dominant pollutant for AQI greater than 200 is ozone 8-hour average.The concentrations of water soluble chemical species in PM2.5 are analyzed by ion chromatography. The results show that the major species are sulfate, ammonium, and nitrate. The fractions of sulfate are the greatest among all analyzed species and are greater than 20% at all sites; those of ammonium and nitrate are 9%～14% and 3%～12%, respectively. Among the analyzed water soluble organic species, the fractions of oxalate, 0.7%～0.9%, are the greatest except for the Yangmin site, followed by formate of 0.2%～0.7%. The concentrations of oxalate in southern Taiwan are greater than those in northern Taiwan and are greater in winter season. The contributions of biomass sources to oxalate are 7.5%～12.5% in Taiwan based on the ratios of oxalate and potassium and the greater contributions periods are in June and October to December, which are the major rice straw open burning periods in Taiwan. The concentrations of levoglucosan、mannosan、galactosan and threitol are greater in winter season, especially in November and December. Levoglucosan is also used as tracer to estimate the contributions of biomass sources to the ambient fine particle concentrations. The results show that the contributions of biomass sources to ambient fine particle concentrations are about 5～19% and 7～18% at central and Yuchinan air basins, respectively.The contributions of various sectors to the ambient fine particle and ozone concentrations are evaluated by Models-3/CMAQ. For every ten thousand tons of fine particles emitted, the contribution of cooking, 6.85%, is the greatest, followed by dust from paved road, 5.88%, and passenger car, 5.62%. For NOx, the contribution of printed circuit board,5.32%, is the greatest, followed by cooking, 3.83%, and two-stroke motorcylse, 1.03%. The annual average contribution of Taichung power plant to the ambient fine particle concentration is 2.3% in Taiwan based on the simulation by CMAQ. Note that the contribution to each site may be up to 6.3% at PM2.5 daily concentration greater than 50 μg/m3. The sensitivity analysis for ozone control has been conducted by observation based method using the ratio of H2O2 to HNO3. The results shows that VOC-control for northern Taiwan and NOx-control for central and southern Taiwan in ozone season.The cost/benefit analysis for fine particle control shows that the order of pollutant control is primary particle, SO2 and NOx. The amounts of primary fine particle, SO2 and NOx need to be reduced are 27300 tons, 89400 tons, and 178400 tons, respectively and these are 70.9%, 85.0%, and 51.9% of the emission of year 2013. However, these end-of-pipe control measures can only reduce the ambient fine particle concentration by 25%."
Project Year
2016
Organizer
"Department of Air Quality Protection ＆amp; Noise Control"
Executive Unit
"財團法人成大研究發展基金會"
Reporting download URL
Publish Date
20170701
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