Concept

Diméthylmercure

Publications associées (8)

Evidence that Pacific tuna mercury levels are driven by marine methylmercury production and anthropogenic inputs

Pacific Ocean tuna is among the most-consumed seafood products but contains relatively high levels of the neurotoxin methylmercury. Limited observations suggest tuna mercury levels vary in space and time, yet the drivers are not well understood. Here, we m ...

National Academy of Sciences2022

Mercury isotope evidence for Arctic summertime re-emission of mercury from the cryosphere

Jakob Boyd Pernov, Jenny Thomas

During Arctic springtime, halogen radicals oxidize atmospheric elemental mercury (Hg0), which deposits to the cryosphere. This is followed by a summertime atmospheric Hg0 peak that is thought to resultmostly fromterrestrial Hg inputs to the ArcticOcean, fo ...

2022

Bioaccessibility, bioaccumulation and effects of tire-associated chemicals for aquatic and soil-dwelling organisms

Kristin Schirmer, Florian Frédéric Vincent Breider, Benoît Jean Dominique Ferrari, Thibault Béranger Masset

Tire and road wear particles (TRWP) are produced by the friction between the tires and road and consist of polymer-containing tread with pavement encrustations. There are many data gaps remaining regarding their fate and potential toxicological impact on t ...

2022

Atmospheric mercury sources in a coastal-urban environment: a case study in Boston, Massachusetts, USA

Hélène Paule Angot

Mercury (Hg) is an environmental toxicant dangerous to human health and the environment. Its anthropogenic emissions are regulated by global, regional, and local policies. Here, we investigate Hg sources in the coastal city of Boston, the third largest met ...

2021

Mercury is a direct and potent γ-secretase inhibitor affecting Notch processing and development in Drosophila

Bruno Lemaitre, Patrick Fraering, Mitko Dimitrov, Takayuki Kuraishi, Isabelle Chang

Prenatal exposure to mercury causes neurodevelopmental disorders and neurological pathologies in infants, such as microcephaly and mental retardation. Despite critical importance, the molecular interactions leading to mercury toxicity are yet to be elucida ...

2011

Discriminating between intra- and extracellular metals using chemical extractions

Several washing agents ( EDTA, CDTA, NTA, 8 HQS, Ti-EDTA- citrate, Ca2+, and H+) were tested for their ability to extract adsorbed metal from biological surfaces to distinguish between internalized and total cellular metal (Pb, Ni, Cd, Zn, and Cu) for a gr ...

2004

Dangers du Diméthylmercure

Jean-Luc Marendaz

A chemist, Karen Wetterhahn died after a cutaneous exposure to dimethylmercury despite wearing latex gloves. Lately, it was found that this compound permeates the latex almost immediately. This accident could have been avoided if dimethylmercury was no mor ...

1998

Response Mechanism of Anion-Selective Electrodes Based on Mercury Organic Compounds as Ionophores

New mercury organic compounds with 1-3 metal centers and different substituents were synthesized as anion-selective ionophores. They were incorporated into solvent polymeric membranes, and the selectivity, slope of response, response time, emf repeatabilit ...

1996

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