References

ACPD

Atmospheric Chemistry and Physics Discussions

ACPD

1680-7375

Copernicus GmbH

Göttingen, Germany

10.5194/acpd-9-18727-2009

Decadal trends in aerosol chemical composition at Barrow, AK: 1976–2008

Quinn

P. K.

¹ Bates

T. S.

¹ Schulz

¹ Shaw

G. E.

NOAA PMEL, 7600 Sand Point Way NE, Seattle, WA 98115, USA

University of Alaska, 903 Koyukuk Dr., Fairbanks, AK, 99775, USA

10 09 2009

9 5 18727 18743

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Aerosol measurements at Barrow, AK during the past 30 years have identified the long range transport of pollution associated with Arctic Haze as well as ocean-derived aerosols of more local origin. Here, we focus on measurements of aerosol chemical composition to assess 1) trends in Arctic Haze aerosol and implications for source regions, 2) the interaction between pollution-derived and ocean-derived aerosols and the resulting impacts on the chemistry of the Arctic boundary layer, and 3) the response of aerosols to a changing climate. Aerosol chemical composition measured at Barrow, AK during the Arctic haze season is compared for the years 1976–1977 and 1997–2008. Based on these two data sets, concentrations of non-sea salt (nss) sulfate (SO4=) and non-crustal (nc) vanadium (V) have decreased by about 60% over this 30 year period. Consistency in the ratios of nss SO4=/ncV and nc manganese (Mn)/ncV between the two data sets indicates that, although emissions have decreased in the source regions, the source regions have remained the same over this time period. The measurements from 1997–2008 indicate that, during the haze season, the nss SO4= aerosol at Barrow is becoming less neutralized by ammonium (NH4+) yielding an increasing sea salt aerosol chloride (Cl−) deficit. The expected consequence is an increase in the release of Cl atoms to the atmosphere and a change in the lifetime of volatile organic compounds (VOCs) including methane. In addition, summertime concentrations of biogenically-derived methanesulfonate (MSA−) and nss SO4= are increasing at a rate of 12 and 8% per year, respectively. Further research is required to assess the environmental factors behind the increasing concentrations of biogenic aerosol.

References 1

Barrie, L. A.: Arctic air pollution: An overview of current knowledge, Atm. Env., 20, 643–663, 1986.

Barrie, L. A. and Hoff, R. M.: The oxidation rate and residence time of sulphur dioxide in the Arctic atmosphere, Atmos. Env., 18, 2711–2722, 1984.

Bates, T. S., Quinn, P. K., Coffman, D. J., Covert, D. S., Miller, T. L., and Johnson, J. E.: Marine boundary layer dust and pollutant transport associated with the passage of a frontal system over eastern Asia, J. Geophys. Res., 109, D19S19, doi:10.1029/2003JD004094, 2004.

Berge, E., J. Bartnicki, K. Olendrzynski, and S.G. Tsyro, Long-term trends in emissions and transboundary transport of acidifying air pollution in Europe, J. Env. Man., 57, 31–50, 1999.

Christensen, J. H.: The Danish eulerian hemispheric model-a three dimensional air pollution model used for the Arctic, Atmos. Env., 31, 4169–4191, 1997.

Delene, D. J. and Ogren, J. A.: Variability of aerosol optical properties at four North American surface monitoring sites, J. Atmos. Sci., 59(6), 1135–1150, 2002.

Engvall, A.-C., Krejci, R., Strom, J., Treffeisen, R., Scheele, R., Hermansen, O., and Paatero, J.: Changes in aerosol properties during spring-summer period in the Arctic troposphere, Atmos. Chem. Phys., 8, 445–462, 2008.

Erisman, J. W., Grennfelt, P., and Sutton, M.: The European perspective on nitrogen emission and deposition, Env. Int., 29, 311–325, 2003.

Ferek, R. J., Hobbs, P. V., Radke, L. F., Herring, J. A., Sturges, W. T., and Cota, G. F.: Dimethyl sulfide in the arctic atmosphere, J. Geophys. Res., 100, 26093–26104, 1995.

Garrett, T. J. and Verzella, L. L.: An evolving history of Arctic aerosols, B. Am. Meteor. Soc., 89, 299–302, 2008.

Gauss, M., A. Nyiri, and H. Klein, Transboundary air pollution by main pollutants (S, N, O3) and PM: The Russian Federation, MSC-W Data Note 1, 2008a.

Gauss, M., Nyiri, A., and Klein, H.: Transboundary air pollution by main pollutants (S, N, O3) and PM: The European Community, MSC-W Data Note 1, 2008b.

Gilbert, R.O., Statistical Methods for Environmental Pollution Monitoring, Van Nostrand Reinhold, New York, 1987.

Gong, D. Y. and Ho, C. H.: The Siberian High and climate change over middle to high latitude Asia, Theo. Appl. Clim., 72 1434–4483, 2002.

Holland, J. D.: The Chemistry of the Atmosphere and Oceans, John Wiley, Hoboken, NJ, USA, p. 154, 1978.

Keene, W. C., Sander, R., Pszenny, A. A. P., Vogt, R., Crutzen, P. J., and Galloway, J. N.: Aerosol pH in the marine boundary layer: A review and model evaluation, J. Aer. Sci., 29, 339–356, 1998.

Knipping, E. M. and Dabdub, D.: Impact of chlorine emissions from sea-salt aerosol on coastal urban ozone, Environ. Sci. Technol., 37, 275–284, 2003.

Levasseur, M., Gosselin, M., and Michaud, S.: A new source of dimethylsulfide (DMS) for the Arctic atmosphere: Ice diatoms, Mar. Biol., 121, 381–387, 1994.

Li, S. M., Barrie, L. A., and Sirois, A.: Biogenic sulfate aerosol in the Arctic troposphere, 2, Trends and seasonal variation, J. Geophys. Res., 98, 20623–20631, 1993.

Lowenthal, D. H. and Rahn, K. A.: Regional sources of pollution aerosol at Barrow, Alaska during winter 1979–1980 as deduced from elemental tracers, Atmos. Environ., 19, 2011–2024, 1985.

Mason, B.: Principles of Geochemistry, Wiley & Sons, New York, USA, 1966.

Nordenskiöld, A. E.: Nordenskiöld on the inland ice of Greenland, Science, 2, 732–739, 1883.

O'Dwyer, J., Isaksson, E., Vinje, T., Jauhiainen, T., Moore, J., Pohjola, V., Vaikmae, R., and van de Wal, R. S. W.: Methanesulfonic acid in a Svalbard ice core as an indicator of ocean climate, Geophys. Res. Lett., 27, 1159–1162, 2000.

Pacyna, J. M., Semb, A., and Hanssen, J. E.: Emission and long-range transport of trace elements in Europe, Tellus, 36B, 163–178, 1984.

Platt, U., Allan, W., and Lowe, D.: Hemispheric average Cl atom concentration from C$^13$/C$^12$ ratios in atmospheric methane, Atmos. Chem. Phys., 4, 2393–2399, 2004.

Pszenny, A. A. P., Keene, W. C., Jacob, D. J., Fan, S., Maben, J. R., and Zetwo, M. P.: Evidence of inorganic Cl gases other than hydrogen chloride in marine surface air, Geophys. Res. Lett., 20, 699–702, 1993.

Quinn, P. K., Miller, T. L., Bates, T. S., Ogren, J. A., Andrews, E., and Shaw, G. E.: A 3-year record of simultaneously measured aerosol chemical and optical properties at Barrow, Alaska, J. Geophys. Res., 107(D11), 4130, doi:10.1029/2001JD001248, 2002.

Quinn, P. K., Coffman, D. J., Kapustin, V. N., Bates, T. S., and Covert, D. S.: Aerosol optical properties in the marine boundary layer during ACE 1 and the underlying chemical and physical aerosol properties, J. Geophys. Res., 103, 16547–16563, 1998.

Quinn, P. K., Shaw, G., Andrews, E., Dutton, E. G., Ruoho-Airola, T., and Gong, S. L.: Arctic haze: Current trends and knowledge gaps, Tellus, 59B, 99–114, 2007.

Raatz, W. E. and Shaw, G. E.: Long-range tropospheric transport of pollution aerosols into the Alaskan Arctic, J. Clim. App. Met., 23, 1052–1064, 1984.

Rahn, K. A.: The Mn/V ratio as a tracer of large-scale sources of pollution aerosol for the Arctic, Atmos. Env., 15, 1457–1464, 1981.

Rahn, K. A. and R. J.: McCaffrey, On the origin and transport of the winter Arctic Aerosol, Ann. N. Y. Acad. Sci., 338, 486–503, 1980.

Rahn, K. A. and Shaw, G. E.: Sources and transport of Arctic pollution aerosol: A chronicle of Six years of ONR research, Naval Res. Rev., 4–26, 1980.

Sen, P. K.: Estimates of the regression coefficient based on Kendall's tau, J. Am. Stat. Assoc., 63, 1379–1389, 1968.

Stern, D. I.: Global sulfur emissions from 1850 to 2000, Chemo., 58, 163–175, 2005.

Zoller, W. H., Gordon, G. E., Gladney, E. S., and Jones, A. G.: The sources and distribution of vanadium in the atmosphere. In: Trace Elements in the Environment, Adv. Chem. Series, No. 123, ACS, Washington DC, USA, 31–47, 1973.