Abstract

경주시의 1~3종에 해당하는 고정배출원에서 배출되는 오염물질 배출량은 PM-10 0.70 ton/yr, $SO_2$ 13.95 ton/yr, NOx 37.12 ton/yr로 조사되었고, 면오염원의 경우 PM-10 1.02 ton/yr, $SO_2$ 13.44 ton/yr, NOx 21.10 ton/yr로 나타났다. 또한 이동오염원의 오염물질 배출량은 PM-10 963.91 ton/yr, $SO_2$ 1415.02 ton/yr, NOx 5612.70 ton/yr로 조사되었다. 경주, 포항 및 주변지역의 대기 중 PM-10, $SO_2$ 및 $NO_2$ 의 농도분포를 확인한 결과, 고농도 지역은 주로 포항철강공단 및 이동오염원 주변이었다. 경주지역의 $SO_2$ 농도는 2006년 0.002 ppm에서 2015년 0.005 ppm으로, $NO_2$ 는 2006년 0.004 ppm에서 2015년 0.010 ppm으로 증가할 것으로 예측되었다. 이에 대기오염물질을 저감하기 위한 실천방안과 석조문화재를 환경오염물질 및 기타 화학적, 물리적, 생물학적 요인으로 부터 보호하기 위한 실천관리 프로그램이 적극적으로 도입되어야 할 시점으로 사료된다. 【The amount of pollutants from stationary sources of businesses classified into 1-3 type in Gyeongju was found to be 0.70 ton/yr for PM-10, 13.95 ton/yr for $SO_2$ , and 37.12 ton/yr for NOx ; with respect to area sources, 1.02 ton/yr for PM-10, 13.44 ton/yr for $SO_2$ , and 21.10 ton/yr for NOx ; and with respect to mobile sources 963.91 ton/yr for PM-10, 1415.02 ton/yr for $SO_2$ , and 5612.70 ton/yr for NOx. This study surveyed the concentration distribution of PM-10, $SO_2$ , and NO2 in the air in around Gyeongju and Pohang, and found that high concentration was mainly distributed around Pohang Steel Industrial Complex and the around of mobile sources. In Gyeongju area, $SO_2$ was predicted to increase from 0.002 ppm in 2006 to 0.005 ppm in 2015, and that of $NO_2$ was predicted to increase from 0.004 ppm to 0.010 ppm during the same period. At this point, practicing guidelines to reduce air pollutants and management plan for environmental pollutants should be devised, and also practicing and management programs to protect the stone cultural properties from environmental pollutants and other chemical, physical, and biological factors should be actively introduced.】

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