Aerosol chemical composition during tropospheric ozone depletion at Ny Ålesund/Svalbard

E. Lehrer; D. Wagenbach; U. Platt

doi:10.3402/tellusb.v49i5.15987

Aerosol chemical composition during tropospheric ozone depletion at Ny Ålesund/Svalbard

Tellus B: Chemical and Physical Meteorology

Volume 49 (1997): Issue 5

By: E. Lehrer, D. Wagenbach and U. Platt

Open Access

|Jan 1997

Abstract

During spring 1995, aerosol filters were continuously sampled with a temporal resolution of 4–24 h at the NILU Zeppelin Mountain Station (Ny Ålesund/Svalbard) and analysed for bromide, major ions and methanesulfonic acid (MSA). During a strong ozone depletion event at the end of April, a corresponding increase in the non-sea salt Br- exceeding the typical background level by more than one order of magnitude was observed. Peak f-Br levels (120 ng/m³) were almost equal to results of measurements reported earlier from Alert and Barrow. Less pronounced O₃ depletion events occurring in early May were associated with a relatively weak Br- enhancement. A good correlation of f-Br and simultaneously measured BrO was found ([BrO]= 2 [f-Br] on a per molecule basis), except for situations with near zero O₃.

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Articles in this issue

DOI: https://doi.org/10.3402/tellusb.v49i5.15987 | Journal eISSN: 1600-0889

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Language: English

Page range: 486 - 495

Submitted on: Nov 26, 1996

Accepted on: Sep 3, 1997

Published on: Jan 1, 1997

Published by: Stockholm University Press

In partnership with: Paradigm Publishing Services

© 1997 E. Lehrer, D. Wagenbach, U. Platt, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 49 (1997): Issue 5