Document Detail


Analysis of roadside inhalable particulate matter (PM10) in major Korean cities.
MedLine Citation:
PMID:  16328679     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A data analysis of three major Korean cities was conducted to assess roadside inhalable particulate matter 10 microm or smaller in aerodynamic diameter (PM10), including temporal and meteorological variations, over a recent period of 4 to 6 years. The yearly roadside PM10 concentrations presented a well-defined increasing trend or no trend depending on the roadside monitoring station. Most mean values exceeded or approximated the Korean standard of 70 microg/m3 per year for PM10. A representative roadside diurnal trend was characterized by a distinct morning maximum. In most cases, the Sunday roadside concentrations were similar to or somewhat lower than the weekday concentrations, and the PM10 concentrations presented a well-defined seasonal variation, with the maximum concentration in March. The monthly maximum concentrations observed in March were most likely attributable to Asian dust storms. In two metropolitan cities (Seoul and Busan), the frequency of days with roadside PM10 concentrations exceeding the standard of 150 microg/m3 per 24 h was much lower for the roadside monitoring stations than for the residential monitoring station, whereas in the third city (Daegu), this result was reversed. Interestingly, the average maximum concentrations observed for the roadside sites in Seoul and Busan during March were higher than those for the residential sites, suggesting that the roadside concentrations responded more to the dust storms than the residential areas. The relationship between the pollutant concentrations and five important meteorological parameters (solar radiation, wind speed, air temperature, relative humidity, and precipitation) showed that the number and type of meteorological variables included in the equations varied according to the monitoring station or season. Finally, the current results confirmed that attention should be given to the PM10 exposure of residents living near roadways.
Authors:
Wan-Kuen Jo; Jin-Ho Park
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental management     Volume:  36     ISSN:  0364-152X     ISO Abbreviation:  Environ Manage     Publication Date:  2005 Dec 
Date Detail:
Created Date:  2005-12-05     Completed Date:  2006-02-03     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7703893     Medline TA:  Environ Manage     Country:  United States    
Other Details:
Languages:  eng     Pagination:  826-41     Citation Subset:  IM    
Affiliation:
Department of Environmental Engineering, Kyungpook National University, Daegu, 702-701, Korea. wkjo@knu.ac.kr
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MeSH Terms
Descriptor/Qualifier:
Air Pollutants / analysis*,  standards
Cities
Dust / analysis*
Environmental Monitoring
Korea
Meteorological Concepts
Particle Size
Seasons
Time Factors
Vehicle Emissions
Chemical
Reg. No./Substance:
0/Air Pollutants; 0/Dust; 0/Vehicle Emissions

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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