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Sci Total Environ

Title:		"Indoor and outdoor concentrations of RSP, NO2 and selected volatile organic compounds at 32 shoe stalls located near busy roadways in Seoul, Korea"
Author(s):		Bae H; Yang W; Chung M;
Address:		"Department of Environmental Health, School of Public Health, Seoul National University, Seoul, South Korea"
Journal Title:		Sci Total Environ
Year:		2004
Volume:		323
Issue:		1-Mar
Page Number:		99 - 105
DOI:		10.1016/j.scitotenv.2003.09.033
ISSN/ISBN:		0048-9697 (Print) 0048-9697 (Linking)
Abstract:		"It is suspected that persons who work in indoor environments near busy roadways are exposed to elevated levels of air pollutants during working hours. This study evaluated the potential exposure and source contribution associated with traffic-related air pollution for workers (polishers and repairmen) in shoe stalls from each of 32 districts during working hours in Seoul, Korea. The shoe stalls have been located at very close distances to the busy roadways. In this study, shoe stall workers could be exposed to high levels of respirable suspended particulate (RSP), nitrogen dioxide (NO(2)) and volatile organic compounds (VOCs) from outdoor sources such as traffic exhaust, as well as indoor sources in the shoe stalls such as dust on the shoes, portable gas ranges, organic solvents, adhesives and shoe polish. Compounds of particular note included indoor mean concentrations of benzene, toluene, m/p-xylene and o-xylene were 0.732, 6.777, 4.080 and 1.302 mg/m(3), respectively, in all shoe stalls. Mean indoor/outdoor ratios for toluene and m/p-xylene concentrations were 54.52 and 20.84, respectively. The contribution of vehicle exhaust emissions to indoor air quality of shoe stalls was identified by means of correlating the relationships between simultaneously measured air pollutant concentrations indoors and outdoors. Unlike RSP and NO(2), indoor VOCs concentrations of shoe stalls mainly originated from indoor sources vs. outdoor sources"
Keywords:		"Air Pollutants/*analysis Air Pollution, Indoor/*analysis Humans Nitrogen Dioxide/*analysis *Occupational Exposure Occupations Organic Chemicals/analysis Particle Size Shoes Vehicle Emissions/*analysis Volatilization;"
Notes:		"MedlineBae, Hyunjoo Yang, Wonho Chung, Moonho eng Research Support, Non-U.S. Gov't Netherlands 2004/04/15 Sci Total Environ. 2004 May 5; 323(1-3):99-105. doi: 10.1016/j.scitotenv.2003.09.033"