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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Korean Society for Atmospheric Environment
Journal Basic Information
Journal DOI :
Korean Society for Atmospheric Environment
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Volume & Issues
Volume 10, Issue 4 - Dec 1994
Volume 10, Issue 3 - Sep 1994
Volume 10, Issue 2 - Jun 1994
Volume 10, Issue 1 - Mar 1994
Volume 10, Issue E - 00 1994
Selecting the target year
Acid Precipitation and Water Cycling
Journal of Korean Society for Atmospheric Environment, volume 10, issue 3, 1994, Pages 159~169
This paper describes the process of acidic precipitation from the atmosphere to the ground water, The net deposition of wet precipitation to the ground surface is obtained by subtracting the interception loss due to plant leaves and evaporation from the amount of total precipitation. As the water immerses through the vegetation and the different soil layers the various chemical reactions take place. The relationship between the acidic precipitation by increasing industrial emissions and the soil acidification mechanism is discussed. The report focuses on the buffering action that involves the proton budget in soil and rocks. Based on the soil constituents, the six buffer ranges of the soil are classified and each buffering process is illustrated. In addition, the Possibility of the contamination of drinking-water reservoirs by continuous acid burden is emphasized.
Annual Variation of Atmospheric Lead Concentration in Seoul(1984-1993)
Journal of Korean Society for Atmospheric Environment, volume 10, issue 3, 1994, Pages 170~174
Atmospheric lead concentrations in Seoul were monitored for ten years from January 1984 to June 1993 using X-ray fluorescence Spectrometer. 342 aerosol samples were collected using high volume samplers at two sites : one at Chungang University campus from 1984 to 1988 and the other at Yonsei University campus from 1989 to 1993. Lead concentration increased steadily from about 300ng/㎥ to the maximum of about 600ng/㎥ in 1988 and then decreased, and this is similar to the pattern of Korean leaded gasoline sales implying that Korean automobile emission is the main source. However, the emission from nation's coal combustion appeared to be substantial as welt, and this emmision is the major cause for the secondary feature strong seasonal variability. Lead concentration varied systematically from season to season, low in summer and high in winter. The region's characteristic climate, frequent and heavy precipitations in summer and dry in winter is considered to be another cause for the seasonal variability.
Trajectory Analysis on Acid Rain Observed in the Central Part of Korea During 1992 to 1993
Journal of Korean Society for Atmospheric Environment, volume 10, issue 3, 1994, Pages 175~182
Backward trajectory analysis was carried out for 41 cases at 850 hPa level and 47 cases at 700 hPa level during the period from May 1992 to August 1993 in order to understand the impact of long-range transported pollutants from the neighboring countries on the distribution pattern of acid rain in Korea. The occurrence frequencies of acid rain were also investigated using the rainwater data observed at 5 stations in the central part of Korea, Kangwha, Seoul, Yangpyong, Hongchon, and Inje. The trajectory analysis showed that westerlies were dominant on 700 hPa level and southwesterlies on 850 hPa level in Korea. The pH values were also often lower when the trajectory was stagnant in the upper air over Korea. However, pH values were normally higher in all directions of flows during the Yellow Sand Period due to the increase of Positive ion components such as
. The pH values were also normally higher when air flows from north or northeast.
Performance Test of Domestic Glass Fabric by varying cleaning conditions in a Pulse-Jet Cleaned Fabric Filter
Journal of Korean Society for Atmospheric Environment, volume 10, issue 3, 1994, Pages 183~190
Performance of domestic glass fabrics was tested in a Pulse- jet cleaned fabric filter under simulated coal combustion. Pulse Pressure were 2.5, 4.0kgf/
and pulse air nozzle diameter were 4.0, 6.0mm Pressure drop and penetration turned out to be low at small pulse air nozzle diameter and low pulse air pressure. Fractional penetration through the dust cake and fabric at face velocity of 1.7m/min was higher than that at face velocity of 1.0m/min. As a consequense, the performance of domestic glass fabrics was better with face velocity of less than 1.0m/min, pulse air pressure of 2.5 kgf/
and pusle air nozzle diameter of 4.0mm.
Concentration of Particulate Nitrate Originated from Sea Salt in Seoul Ambient Air
Journal of Korean Society for Atmospheric Environment, volume 10, issue 3, 1994, Pages 191~196
Concentration of particulate nitrate originated from sea salt in ambient air was determined from February to October 1993. Sampling was carried out using a two-stage Anderson air sampler at the top of a five-story building located at Kon-Kuk University in Seoul. Concentration of NaNO
, which originated from sea salt was highest in spring time and lowest in summer the and the concentration range was between 0.10 and 0.66
/TSP ratio was very low 0.05~0.39%) indicating that the portion of NaNO
in TSP was negligible.
An Evaluation of Short-Term Concentrations of CO and TSP From Vehicle Emissions Near Highway
Journal of Korean Society for Atmospheric Environment, volume 10, issue 3, 1994, Pages 197~202
The research described in this paper is conducted to estimate the short-term concentrations of nonreactive pollutants such as CO and TSP from vehicle emissions near Kyungbu Highway. An emphasis is placed on the development of a model for a hourly traffic volume for each vehicle type, which is based on real traffic data. By using the model and the calculated emission factor due to vehicle speed for each vehicle type, the emission rate of CO and TSP for each traffic line is computed. The hourly emission rate and meteorological data are used to simulate by HIWAY-2 for the distance of 5m and 10m from the downwind edge of Kyungbu Highway located in relatively uncomplicated terrain.
The Trend of Visibility Variation of Seoul during 1980-1993
Journal of Korean Society for Atmospheric Environment, volume 10, issue 3, 1994, Pages 203~208
The trend of visibility variation of Seoul during 1980-1993 is analyzed. Annual average visibility has been decreased during the 1980s except 1988 and 1989 but not decreasing during the early 1990s. Also, the number of days with haze during 1983-1993 did not increase. Mixing height is deemed to be a dominant factor determining visibility. During the period, the difference between the average visibility at 6 p.m and 9 a.m decreased with the average visual range at 9 a.m slightly increased. Thus there is possibility that the effect of Photochemcial reactions becomes noticeable. The number of vehicles and the concentration of criteria air pollutants on the trend of visibility variation of Seoul would not be directly related to the variation of visibility.