The effect of local circulation on the variation of atmospheric pollutants in Taiwan

P. L. Lin; N. H. Lin; H. C. Lai

The effect of local circulation on the variation of atmospheric pollutants in Taiwan

Department of Atmospheric Sciences

Research output: Contribution to conference › Paper › peer-review

Abstract

A field experiment was conducted in the northwestern Taiwan during 6/15-24/94 as part of a long-term research program to study the characteristics of boundary layer and local circulation and their impact on the distribution and variation in this area during Mei-Yu season. The observations of flow fields were designed along the coastline and right direction from coast to inland where the sea breeze may reach. There were six monitoring stations of the Environmental Protection Administration located in this area, which monitor ambient quality including SO₂, NO_x, hydrocarbon, CO, and aerosols. The daytime concentrations of measured gases, such as SO₂, HNO₃, and NH₃ were significantly higher than in nighttime concentration. During frontal passage, the diurnal pattern O₃ concentration was significantly modified due to the movement of the front, while the particulate matter (PM₁₀), and SO₂ were removed from the air due to wet scavenging.

Original language	English
State	Published - 1998
Event	11th World Clean Air and Environment Congress: 'The Interface between Developing and Developed Countries' - Durban, South Africa Duration: 14 Sep 1998 → 18 Sep 1998

Conference

Conference	11th World Clean Air and Environment Congress: 'The Interface between Developing and Developed Countries'
Country/Territory	South Africa
City	Durban
Period	14/09/98 → 18/09/98

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abstract = "A field experiment was conducted in the northwestern Taiwan during 6/15-24/94 as part of a long-term research program to study the characteristics of boundary layer and local circulation and their impact on the distribution and variation in this area during Mei-Yu season. The observations of flow fields were designed along the coastline and right direction from coast to inland where the sea breeze may reach. There were six monitoring stations of the Environmental Protection Administration located in this area, which monitor ambient quality including SO2, NOx, hydrocarbon, CO, and aerosols. The daytime concentrations of measured gases, such as SO2, HNO3, and NH3 were significantly higher than in nighttime concentration. During frontal passage, the diurnal pattern O3 concentration was significantly modified due to the movement of the front, while the particulate matter (PM10), and SO2 were removed from the air due to wet scavenging.",

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AU - Lin, P. L.

AU - Lin, N. H.

AU - Lai, H. C.

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N2 - A field experiment was conducted in the northwestern Taiwan during 6/15-24/94 as part of a long-term research program to study the characteristics of boundary layer and local circulation and their impact on the distribution and variation in this area during Mei-Yu season. The observations of flow fields were designed along the coastline and right direction from coast to inland where the sea breeze may reach. There were six monitoring stations of the Environmental Protection Administration located in this area, which monitor ambient quality including SO2, NOx, hydrocarbon, CO, and aerosols. The daytime concentrations of measured gases, such as SO2, HNO3, and NH3 were significantly higher than in nighttime concentration. During frontal passage, the diurnal pattern O3 concentration was significantly modified due to the movement of the front, while the particulate matter (PM10), and SO2 were removed from the air due to wet scavenging.

AB - A field experiment was conducted in the northwestern Taiwan during 6/15-24/94 as part of a long-term research program to study the characteristics of boundary layer and local circulation and their impact on the distribution and variation in this area during Mei-Yu season. The observations of flow fields were designed along the coastline and right direction from coast to inland where the sea breeze may reach. There were six monitoring stations of the Environmental Protection Administration located in this area, which monitor ambient quality including SO2, NOx, hydrocarbon, CO, and aerosols. The daytime concentrations of measured gases, such as SO2, HNO3, and NH3 were significantly higher than in nighttime concentration. During frontal passage, the diurnal pattern O3 concentration was significantly modified due to the movement of the front, while the particulate matter (PM10), and SO2 were removed from the air due to wet scavenging.

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T2 - 11th World Clean Air and Environment Congress: 'The Interface between Developing and Developed Countries'

Y2 - 14 September 1998 through 18 September 1998

ER -

The effect of local circulation on the variation of atmospheric pollutants in Taiwan

Abstract

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