July 4 - July 9
Lyon (France) and on-line
Submit an abstract before 26 February (23:59 CET)!
Goldschmidt is the foremost annual, international conference on geochemistry and related subjects, organized by the Geochemical Society and the European Association of Geochemistry. Given the exceptional circumstances due to the current Covid-19 pandemic, the Goldschmidt2021 Conference will be in a hybrid format, combining an onsite meeting for delegates who can travel, with an online meeting for those who cannot, while aiming to promote as much interaction as possible between the two types of delegates. Should a physical conference in Lyon ultimately not be possible, it will move to a fully online meeting.
13a. Marine biogeochemistry: Particle fluxes and dissolved trace element cycling from source to sink
Adi Torfstein, Hebrew University of Jerusalem
Phoebe Lam, University of California, Santa Cruz
William B Homoky, University of Leeds
Erin Black, Lamont-Doherty Earth Observatory
Amber Annett, University of Southampton
Christopher T Hayes, University of Southern Mississippi
Claudia Benitez-Nelson, University of South Carolina
The compositions of seawater and marine particulate material, and their temporal and spatial fluxes and exchange, play a pivotal role in modulating the biological pump and atmospheric CO2 uptake, as well as various biogeochemical processes in the oceans. Determination of the inputs, settling fluxes, remineralization rates, chemical scavenging and the linkage of particles to seawater composition and marine productivity, are therefore critical for a full understanding of marine biogeochemical cycles and their impact on global climate.
Here we seek contributions on the following non-exclusive topics: (1) new methodologies for determination of trace element concentrations, isotopic compositions, or particle flux rates, (2) new approaches to characterize particle compositions, including across size classes, mineralogical phases or different environments, or (3) the interactions between particles and dissolved distributions. We encourage submissions of multi-disciplinary studies, such as GEOTRACES or other programs, including applications of radionuclides, experimental and analytical isotope geochemistry, modeling, and trace element partitioning between solid, colloidal and dissolved phases. We focus on studies that describe processes in the modern oceans but submissions discussing paleoceanographic conditions are welcome. We further seek studies that focus on the interplay between external sources (e.g., dust, rivers, margins), surface productivity and marine particulate and dissolved compositions and fluxes.
12e. Biomonitoring and Pollution Sensors
Nadine Mattielli, Université Libre de Bruxelles
Neele van Laaten, Friedrich Schiller University Jena
Jane Entwistle, Northumbria University
Anthropogenic pollution has been identified as one of the major challenges of the Anthropocene. Since this occurs often in densely populated areas, correct and spatially resolved monitoring is crucial.
Within the last decades, the popularity of biomonitoring methods and low-cost samplers/sensors for pollutants (metals, particles, radionuclides, organics, …) has been growing significantly. In urban areas, they are often used for air quality monitoring. Advantages like easy realization and low space requirement turn them into valuable tools for almost all areas. Selected approaches might also be used in the framework of citizen science. Additionally, they might be of special interest for low-income regions that often exhibit the highest pollution rates.
A variety of biological materials (e.g. mosses, lichen, plant leaves, spider webs, honey) can be used in this context. Other approaches use but are not limited to small particle sensors or adhesive surfaces. While this leaves the scientist with a broad range of methods, they are often not focused in detail.
This session therefore seeks for contributions dealing with all kinds of low-cost and/or easy to apply monitoring methods for pollution – being it biomonitoring, sensors or others. Contributions can deal with lab studies, field studies applying these method(s) or theoretical/statistical aspects of the monitoring approaches.
Kate Smith is the Keynote speaker. She is PhD Student at the PCIGR, UBC, Vancouver – Canada. She uses sensitive mass-spectrometer techniques to determine the elemental and isotopic composition of lead (and trace metals) in honey as Bioindicator of Environmental Pollution (in urban areas).
Gabe Filippelli is the Invited speaker. He is Chancellor’s Professor of Earth Sciences, Director of the Center for Urban Health at Indiana University. G. Filippelli is a biogeochemist with broad training in climate change, exposure science, and environmental health.
To submit an abstract please follow the instructions available here: https://2021.goldschmidt.info/goldschmidt/2021/cfp.cgi