본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

Atmospheric environment v.30 no.14, 1996년, pp.2475 - 2482  

Study of formation of coarse particle nitrate aerosol

Pakkanen, Tuomo A. ;
  • 초록  

    Abstract The results of analyses of six atmospheric aerosol samples collected in Helsinki, Finland, using a Berner low-pressure impactor, are reported. Formation of coarse particle nitrate was studied by evaluating various ion balances of the measured water-soluble ions (NH 4 + , Na + , K + , Mg 2+ , Ca 2+ , Cl − , NO 3 − and SO 4 2− ) and mass size distributions of Na + Ca 2+ , Cl − and NO − 3 . Atmospheric coarse particle NO − 3 was found to be formed in the reaction of nitric acid with sea- and soil-derived coarse particles. The fraction of nitrate found on sea and soil particles followed the measured concentrations and size distributions of these two particle types: the concentration ratio of soil to sea particles increased with increasing particle size as did the fraction of nitrate on soil particles. The reaction with sea-salt particles resulted in the evaporation of Cl − as HCI. The presence of non-sea-salt SO 4 2− indicates that also H 2 SO 4 and/or SO 2 reacted with sea salt and contributed to the Cl − loss. Overall, the percentage of evaporated Cl − decreased with increasing particle size, which suggests a surface reaction mechanism. Cl − evaporation was almost complete for the 1–2 um diameter size fraction indicating that all major sea-derived chlorides, NaCl, MgCl 2 , CaCl 2 and KCI, may react with acidic species in the atmosphere. The results showed further some indications of possible reaction of HCI with soil particles.


 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
  • 원문이 없습니다.

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기