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Characteristics of Heavy Metal Concentrations and Indoor Atmospheric Environments in Busan Metropolitan Area, Korea

Park, Jong-Kil;Kim, Yoo-Kuen;Lee, Hwa-Woon;Jang, Nan-Sim;Park, Moon-Ki

  • Published : 2002.08.01

Abstract

The current paper describes the indoor/outdoor air quality in school environments through analyses of the heavy metal concentrations using Inductive Coupled Plasma(ICP). School environments in a heavy traffic area, two industrial areas, quasi-industrial area, and residential area were evaluated. The results were as follows: (1) The locations with the highest indoor and outdoor concentrations of heavy metals were the industrial areas followed by the heavy traffic area, residential area, and quasi-industrial area in a descending order of magnitude. Plus, the indoor heavy metal concentrations were higher then the outdoor ones. (2) The main heavy metal components were Zn, Al and Ca. Higher concentration levels were found indoors than outdoors. The heavy metal concentrations were also higher in the classrooms than in the corridor or outdoors. (3) The total heavy metal concentrations in the studied areas were highly dependent on the weather elements. including the relative humidity, mixing ratio, and wet-bulb depression. Accordingly, special ventilation systems are recommended to reduce air pollution in school environments.

Keywords

indoor-outdoor air quality;school environment;heavy metals

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Cited by

  1. Analysis of Ambient Air Quality Level in Subway Area in Busan Metropolitan City vol.12, pp.2, 2003, https://doi.org/10.5322/JES.2003.12.2.207