Articles | Volume 21, issue 5
Atmos. Chem. Phys., 21, 3447–3472, 2021
https://doi.org/10.5194/acp-21-3447-2021

Special issue: Research results from the 14th International Conference on...

Atmos. Chem. Phys., 21, 3447–3472, 2021
https://doi.org/10.5194/acp-21-3447-2021
Research article
05 Mar 2021
Research article | 05 Mar 2021

Seasonal patterns of atmospheric mercury in tropical South America as inferred by a continuous total gaseous mercury record at Chacaltaya station (5240 m) in Bolivia

Alkuin Maximilian Koenig et al.

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Cited articles

Ambrizzi, T., de Souza, E. B., and Pulwarty, R. S.: The Hadley and Walker Regional Circulations and Associated ENSO Impacts on South American Seasonal Rainfall, in: The Hadley Circulation: Present, Past and Future, edited by: Diaz, H. F. and Bradley, R. S., Springer, Dordrecht, The Netherlands, 21, 203–235, 2004. 
Ambrose, J. L.: Improved methods for signal processing in measurements of mercury by Tekran®2537A and 2537B instruments, Atmos. Meas. Tech., 10, 5063–5073, https://doi.org/10.5194/amt-10-5063-2017, 2017. 
Angot, H., Barret, M., Magand, O., Ramonet, M., and Dommergue, A.: A 2-year record of atmospheric mercury species at a background Southern Hemisphere station on Amsterdam Island, Atmos. Chem. Phys., 14, 11461–11473, https://doi.org/10.5194/acp-14-11461-2014, 2014. 
Bagnato, E., Aiuppa, A., Parello, F., Allard, P., Shinohara, H., Liuzzo, M., and Giudice, G.: New clues on the contribution of Earth's volcanism to the global mercury cycle, B. Volcanol., 73, 497–510, https://doi.org/10.1007/s00445-010-0419-y, 2011. 
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The environmental cycling of atmospheric mercury, a harmful global contaminant, is still not sufficiently constrained, partly due to missing data in remote regions. Here, we address this issue by presenting 20 months of atmospheric mercury measurements, sampled in the Bolivian Andes. We observe a significant seasonal pattern, whose key features we explore. Moreover, we deduce ratios to constrain South American biomass burning mercury emissions and the mercury uptake by the Amazon rainforest.
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