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초록· 키워드
Nitrate dry deposition fluxes were directly measured using knife-leading-edge surrogate surface (KSS) covered with greased strips and a water surface sampler (WSS). The average gaseous flux (8.3 mg/m²/day) was much higher than the average particulate one (3.0 mg/m²/day).The best fit gas phase mass transfer coefficient (MTC) of HNO₃ was obtained by linear regression analysis between measured gaseous flux containing nitrogen compounds and measured ambient HNO₃ concentration. The result showed that the MTCs of HNO₃ were approximately two times higher than those of SO₂. Especially, during the ozone action day, measured gaseous fluxes containing nitrogen compounds were much higher than those ones calculated as the product of measured ambient HNO₃ concentration and gas phase MTC of HNO₃, which is calculated from MTC of SO₂ using Graham's diffusion law. This result indicated that other nitrogen compounds except HNO₃ contributed to gaseous flux containing nitrogen compounds into the water surface sampler. The theoretical calculations suggest the contributions of nitrous acid (HNO₂) and PAN to the gaseous dry deposition flux of nitrogen containing compounds to the WSS.
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참고문헌
참고문헌 신청최근 본 자료
UCI(KEPA) : I410-ECN-0101-2017-539-001523543
