Publication Abstracts

Kanakidou et al. 2018

Kanakidou, M., S. Myriokefalitakis, and K. Tsigaridis, 2018: Aerosols in atmospheric chemistry and biogeochemical cycles of nutrients. Environ. Res. Lett., 13, no. 6, 063004, doi:10.1088/1748-9326/aabcdb.

Atmospheric aerosols have complex and variable composition and properties. While scientific interest is put on atmospheric aerosols for their health and climate effects, not sufficient attention is given to their involvement in multiphase chemistry that changes their contribution as carriers of nutrients for the ecosystems. However, there is experimental proof that the nutrients equilibria of both land and marine ecosystems have been disturbed during the Anthropocene period.

This review study first summarizes current understanding of aerosol chemical processing in the atmosphere relevant to biogeochemical cycles. Then it binds together results of recent modeling studies based on laboratory and field experiments focusing on the organic and dust aerosol components that account for multiphase chemistry, aerosol ageing in the atmosphere, nutrients (N, P, Fe) emissions, atmospheric transport, transformation and deposition. The human-driven contribution to atmospheric deposition of these nutrients, derived by global simulations using past and future anthropogenic emissions of pollutants, is put in perspective with regard to potential changes in nutrient limitations and biodiversity. Atmospheric deposition of nutrients has been suggested to result in human-induced limitations of the ecosystems to specific nutrients. Such modifications are favoring the development of certain species against others and impacting on the overall functioning of the ecosystems. Organic forms of nutrients, are found to contribute to the atmospheric deposition of nutrients by 20-40%, 35-45% and 7-18% for N, P and Fe respectively and have the potential to be key components of the biogeochemical cycles since there is initial proof of their bioavailability to the ecosystems. Bioaerosols have been found to have significant contribution to the atmospheric sources of N and P indicating potentially significant interactions between the terrestrial and marine ecosystems. These results deserve further experimental and modeling studies to reduce uncertainties and understand the feedbacks induced by atmospheric deposition of nutrients to the ecosystems.

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BibTeX Citation

  author={Kanakidou, M. and Myriokefalitakis, S. and Tsigaridis, K.},
  title={Aerosols in atmospheric chemistry and biogeochemical cycles of nutrients},
  journal={Environmental Research Letters},

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RIS Citation

ID  - ka04300i
AU  - Kanakidou, M.
AU  - Myriokefalitakis, S.
AU  - Tsigaridis, K.
PY  - 2018
TI  - Aerosols in atmospheric chemistry and biogeochemical cycles of nutrients
JA  - Environ. Res. Lett.
JO  - Environmental Research Letters
VL  - 13
IS  - 6
SP  - 063004
DO  - 10.1088/1748-9326/aabcdb
ER  -

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