서울 지하철 객차 내 PM10과 CO2의 농도 변화
PM10 and CO2 Concentrations in the Seoul Subway Carriage
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참고문헌
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초록
The subway is the major public transportation system in Seoul with 2.2 million people using it everyday. Indoor air pollution in the subway can be a significant part of population exposure because of the number of people using the subway, time spent in transit and potentially high exposure for certain pollutants. The Korea Ministry of Environment has established the level 2 of recommended standards of PM10 and CO2 in subway trains. The aims of this study were to determine the airborne levels of PM10, CO2 and any correlation between pollutant levels and number of passenger in a subway train. The airborne PM10 and CO2 were measured on the inside of trains on line #4 for 4 different days from October to November in 2008. Average PM10 and CO2 levels were 113±25 ㎍/㎥ and 1402 ± 442 ppm, respectively. These levels did not exceed the level 2 of recommended standards of 250 ㎍/㎥ for PM10 and 3500 ppm for CO2. PM10 level was not correlated with the number of passengers, while CO2 levels were positively correlated with the number of passengers. The findings suggested that PM10 in subway trains may have sources other than those directly associated with the number of passengers.
Abstract
The subway is the major public transportation system in Seoul with 2.2 million people using it everyday. Indoor air pollution in the subway can be a significant part of population exposure because of the number of people using the subway, time spent in transit and potentially high exposure for certain pollutants. The Korea Ministry of Environment has established the level 2 of recommended standards of PM10 and CO2 in subway trains. The aims of this study were to determine the airborne levels of PM10, CO2 and any correlation between pollutant levels and number of passenger in a subway train. The airborne PM10 and CO2 were measured on the inside of trains on line #4 for 4 different days from October to November in 2008. Average PM10 and CO2 levels were 113±25 ㎍/㎥ and 1402 ± 442 ppm, respectively. These levels did not exceed the level 2 of recommended standards of 250 ㎍/㎥ for PM10 and 3500 ppm for CO2. PM10 level was not correlated with the number of passengers, while CO2 levels were positively correlated with the number of passengers. The findings suggested that PM10 in subway trains may have sources other than those directly associated with the number of passengers.
참고문헌 (14)
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