Demethylation─ the other side of the mercury methylation coin: a critical review

T Barkay, B Gu - ACS Environmental Au, 2021 - ACS Publications
The public and environmental health consequences of mercury (Hg) methylation have
drawn much attention and considerable research to Hg methylation processes and their …

Recent advances in microbial mercury methylation: a review on methylation habitat, methylator, mechanism, and influencing factor

H Luo, Q Cheng, D He, J Sun, J Li, X Pan - Process Safety and …, 2023 - Elsevier
In natural environments, inorganic mercury (Hg 2+) can be converted to the neurotoxin
methylmercury (MeHg) mainly via the microbial Hg methylation process with anaerobic …

Sensitive detection of nitrite and nitrate in seawater by 222 nm UV-irradiated photochemical conversion to peroxynitrite and ion chromatography-luminol …

H Kodamatani, S Kubo, A Takeuchi… - Environmental …, 2023 - ACS Publications
Sensitive detection methods for nitrite (NO2–) and nitrate (NO3–) ions are essential to
understand the nitrogen cycle and for environmental protection and public health. Herein …

Critical review of mercury methylation and methylmercury demethylation rate constants in aquatic sediments for biogeochemical modeling

S Helmrich, D Vlassopoulos, CN Alpers… - Critical Reviews in …, 2022 - Taylor & Francis
Mercury is a toxin that causes neurological impairments in adults, is particularly harmful for
fetuses and children, and is deadly in severe cases, making it a worldwide health concern …

The underappreciated role of natural organic matter bond Hg (II) and nanoparticulate HgS as substrates for methylation in paddy soils across a Hg concentration …

J Liu, B Lu, AJ Poulain, R Zhang, T Zhang, X Feng… - Environmental …, 2022 - Elsevier
Rice consumption is the major pathway for human methylmercury (MeHg) exposure in
inland China, especially in mercury (Hg) contaminated regions. MeHg production, a …

[HTML][HTML] Arctic methylmercury cycling

S Jonsson, MN Mastromonaco, F Wang… - Science of the Total …, 2022 - Elsevier
Anthropogenic mercury (Hg) undergoes long-range transport to the Arctic where some of it is
transformed into methylmercury (MeHg), potentially leading to high exposure in some Arctic …

Microbial mercury transformations: molecules, functions and organisms

RQ Yu, T Barkay - Advances in applied microbiology, 2022 - Elsevier
Abstract Mercury (Hg) methylation, methylmercury (MeHg) demethylation, and inorganic
redox transformations of Hg are microbe-mediating processes that determine the fate and …

Occurrence and speciation of arsenic and mercury in alluvial and coastal sediments

A Acquavita, F Floreani, S Covelli - Current Opinion in Environmental …, 2021 - Elsevier
Among potential toxic elements (PTEs), arsenic (As) and mercury (Hg) are well known for
the toxicity of their different chemical species and diffusion in the environment via several …

Distribution of total mercury and methylated mercury species in Central Arctic Ocean water and ice

S Jonsson, MGN Mastromonaco, K Gårdfeldt… - Marine Chemistry, 2022 - Elsevier
Abstract The central Arctic Ocean remains largely unexplored when it comes to the presence
and cycling of mercury and its methylated forms including mono-and dimethylmercury …

Photochemical degradation of dimethylmercury in natural waters

J West, S Gindorf, S Jonsson - Environmental Science & …, 2022 - ACS Publications
Photochemical demethylation of dimethylmercury (DMHg) could potentially be an important
source of monomethylmercury (MMHg) in sunlit water. Whether or not DMHg is …