Mercury in the Environment Articles

241 Results found
  • Category: Health & Safety ×

  • Subcategory: Mercury in the Environment ×

Coal phase out case study: What Alberta can learn from Washington State

by Green Energy Futures  (Nov. 16, 2015)

How Bruce Nilles and the Sierra Club cleaned up Washington state Renewable energy made up half of all the new power plantsconstructed in the world in 2014. That’s an incredible number made all the better when you think of what these plants are ...

Seasonal and flow‐driven dynamics of particulate and dissolved mercury and methylmercury in a stream impacted by an industrial mercury source

by John Wiley & Sons, Ltd.  (Nov. 18, 2015)

Sediments and floodplain soils in the East Fork Poplar Creek (EFPC) watershed in Oak Ridge, TN, are contaminated with high levels of mercury (Hg) from an industrial source at the headwaters. While baseflow conditions have been monitored, concentrations of Hg and methylmercury (MeHg) during high‐flow storm events, when the stream is more ...

Acute embryotoxic effects but no long term reproductive effects of in ovo methylmercury exposure in zebra finches (Taeniopygia guttata)

by John Wiley & Sons, Ltd.  (Nov. 17, 2015)

Mercury bioaccumulates in terrestrial ecosystems as methylmercury (MeHg), yet little is known about its effects on terrestrial organisms including songbirds. Here we used a model songbird species, the zebra finch (Taeniopygia guttata), to assess short‐term embryotoxic effects of in ovo MeHg exposure on hatching success and post‐hatching growth ...

Egg laying sequence influences egg mercury concentrations and egg size in three bird species: Implications for contaminant monitoring programs

by John Wiley & Sons, Ltd.  (Oct. 27, 2015)

Bird eggs are commonly used in contaminant monitoring programs and toxicological risk assessments, but intra‐clutch variation and sampling methodology could influence interpretability. We examined the influence of egg laying sequence on egg mercury concentrations and burdens in American avocets, black‐necked stilts, and Forster's terns. The ...

Mercury concentrations in different tissues of turtle and caiman species from the Rio Purus, Amazonas, Brazil

by John Wiley & Sons, Ltd.  (Sep. 20, 2015)

Total mercury (Hg) concentrations of muscle, liver, blood, and epidermal keratin were measured in typically consumed, economically and culturally important species of turtle (Podocnemis unifilis and Podocnemis expansa) and caiman (Melanosuchus niger and Caiman crocodilus) from the Rio Purus in the Amazon basin, Brazil. Methylmercury (MeHg) ...

What specification thermometers are available, and what are the differences?

by Camlab Limited  (Sep. 16, 2015)

Thermometers are used in most laboratories across all industries, and a wide range are available to suit any temperature monitoring task. For high accuracy applications that need to adhere to international standards, traditional glass specification thermometers are still the most popular choice. Specification thermometers are those which are ...

Mercury Ban – Printers Unaffected

by Alpha Cure (UK)  (Aug. 21, 2015)

The mercury ban debate has been rife with speculation, confusion, strong accusations and well, a little bit of misleading information. So, together with Brendan Perring of Print Monthly I have been getting to the bottom of this tangled web of information. We have been in contact with the National Measurement and Regulations Office (NMRO) to seek ...

Mercury and selenium accumulation in the Colorado River food web, Grand Canyon, USA

by John Wiley & Sons, Ltd.  (Aug. 19, 2015)

Mercury (Hg) and selenium (Se) biomagnify in aquatic food webs and are toxic to fish and wildlife. The authors measured Hg and Se in organic matter, invertebrates, and fishes in the Colorado River food web at sites spanning 387 river km downstream of Glen Canyon Dam (AZ, USA). Concentrations were relatively high among sites compared with other ...

Comparison of the CMVX-7100 Micro-Volume Workstation

by Teledyne CETAC Technologies  (Aug. 18, 2015)

Comparison of the CETAC MVX-7100 Micro-Volume Workstation with an Established Laboratory Method for the Assessment of Lead, Mercury, and Arsenic in Human Whole Blood. Conventional autosamplers used in clinical ICP-MS are largely based on the needs of non-clinical environments. Their disadvantages are numerous and include high ...

Methylmercury biomagnification in an Arctic pelagic food web

by John Wiley & Sons, Ltd.  (Aug. 14, 2015)

Mercury (Hg) is a toxic element that enters the biosphere from natural and anthropogenic sources, and emitted gaseous Hg enters the Arctic from lower latitudes by long‐range transport. In aquatic systems, anoxic conditions favor the bacterial transformation of inorganic Hg to methylmercury (MeHg), which has a greater potential for ...

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