Quantification on the source/receptor relationship of primary pollutants and secondary aerosols by a Gaussian plume trajectory model: Part II. Case study

This study applies a newly developed model, the Gaussian trajectory transfer-coefficient model (GTx) (Part I, Atmos. Environ., this issue), to Taichung City. Two fossil-fueled power plants are situated in the vicinity of Taichung City. The model was calibrated in the winter of 1997 and verified thro...

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Veröffentlicht in:Atmospheric environment (1994) 2003-09, Vol.37 (28), p.3993-4006
Hauptverfasser: Tsuang, Ben-Jei, Chen, Chien-Lung, Lin, Chung-Hsien, Cheng, Man-Ting, Tsai, Ying-I, Chio, Chia-Pin, Pan, Rong-Chang, Kuo, Pei-Hsuan
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container_end_page 4006
container_issue 28
container_start_page 3993
container_title Atmospheric environment (1994)
container_volume 37
creator Tsuang, Ben-Jei
Chen, Chien-Lung
Lin, Chung-Hsien
Cheng, Man-Ting
Tsai, Ying-I
Chio, Chia-Pin
Pan, Rong-Chang
Kuo, Pei-Hsuan
description This study applies a newly developed model, the Gaussian trajectory transfer-coefficient model (GTx) (Part I, Atmos. Environ., this issue), to Taichung City. Two fossil-fueled power plants are situated in the vicinity of Taichung City. The model was calibrated in the winter of 1997 and verified throughout the entire following year of 1998. The results indicate that the correlation coefficients ( r 2) for the daily concentrations of various pollutants were in the range of 0.49–0.83 during the calibrated period and in the range of 0.37–0.71 during the verification period. The advantage of GTx is that the source/receptor relationship of sources can be determined in a single model run. It shows that line sources contributed to 62% of CO, 65% of NO x and 21% of nitrate aerosol; point sources contributed to 46% of SO 2, 57% of sulfate aerosol and 27% of PM 2.5; and area sources contributed to 18% of PM 2.5 and 60% of PM 2.5–10 during the PM 10 episodes in 1998. During the episodes TC power plant contributed to more fractions of pollutants than during non-episode days since the sea breeze blew its plume to the city. According to our analysis, if a fossil-fueled power plant is built at 1–3 days upwind of a city with NO x emitted from an effective stack height within 100–800 m, it has a higher potential to deteriorate the air quality of the city by increasing the concentration level of nitrate aerosols under unfavorable meteorological conditions.
doi_str_mv 10.1016/S1352-2310(03)00472-2
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subjects Aerosols
Air quality
Applied sciences
Atmospheric pollution
Calibration
Correlation
Deterioration
Emittance
Environment
Exact sciences and technology
Gaussian plume
Mathematical analysis
Nitrate
Nitrates
Particulate matter
Pollutants
Pollutants physicochemistry study: properties, effects, reactions, transport and distribution
Pollution
Power plants
Sea breezes
Secondary aerosol
Source/receptor relationship
Sulfate
Sulfates
Trajectories
title Quantification on the source/receptor relationship of primary pollutants and secondary aerosols by a Gaussian plume trajectory model: Part II. Case study
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