Over a decade of atmospheric mercury monitoring at Amsterdam Island in the French Southern and Antarctic Lands

• Published in: Scientific Data
• Main Authors: Magand, Olivier, Angot, Hélène, Bertrand, Yann, Sonke, Jeroen, E, Laffont, Laure, Duperray, Solène, Collignon, Léa, Boulanger, Damien, Dommergue, Aurélien
• Other Authors: Institut des Géosciences de l’Environnement (IGE), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), IPEV GMOSTRAL, European Project: 265113,EC:FP7:ENV,FP7-ENV-2010,GMOS(2010), European Project: 689443,H2020,H2020-SC5-2015-one-stage,ERA-PLANET(2016)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2023
• Subjects: [SDE]Environmental Sciences; Antarctic; Indian; Amsterdam Island; Antarc*
• Online Access: https://hal.science/hal-04349870; https://hal.science/hal-04349870/document; https://hal.science/hal-04349870/file/s41597-023-02740-9.pdf; https://doi.org/10.1038/s41597-023-02740-9

International audience The Minamata Convention, a global and legally binding treaty that entered into force in 2017, aims to protect human health and the environment from harmful mercury (Hg) effects by reducing anthropogenic Hg emissions and environmental levels. The Conference of the Parties is to periodically evaluate the Convention's effectiveness, starting in 2023, using existing monitoring data and observed trends. Monitoring atmospheric Hg levels has been proposed as a key indicator. However, data gaps exist, especially in the Southern Hemisphere. Here, we present over a decade of atmospheric Hg monitoring data at Amsterdam Island (37.80°S, 77.55°E), in the remote southern Indian Ocean. Datasets include gaseous elemental and oxidised Hg species ambient air concentrations from either active/continuous or passive/discrete acquisition methods, and annual total Hg wet deposition fluxes. These datasets are made available to the community to support policy-making and further scientific advancements.