Web25 jan. 2011 · Mercury isotopes in the flora and fauna of the Arctic may be linked to the amount of ice cover present, ... For the study, Native Alaskans and biologists went out in field groups to collect the eggs of the murres, a bird that nests year-round in three coastal Alaskan regions. They then analyzed the mercury isotopes present. Web12 feb. 2024 · High levels of mercury in the Arctic have been found in beluga whales, polar bears, seals, fish, eagles and other birds. This impacts on people, especially the local Inuit who get their food from ...
In vivo fractionation of mercury isotopes in tissues of a …
Web3 apr. 2024 · While stable mercury isotopes and isotope dilution mass spectrometry (IDMS) are more commonly used, radioactive Hg isotopes have proven to be advantageous in situations where contamination and detection limits are problematic. Web11 feb. 2024 · Sources of methylmercury (MeHg) in adult Pacific bluefin tuna (Thunnus orientalis, PBT) from the western North Pacific Ocean (WPO) were examined using mercury stable isotopes.Significant increases in δ 202 Hg and Δ 199 Hg values with PBT size and age, along with those of potential prey, indicate a shift in the source of MeHg … here are too nice photos of my family
Frontiers Comparison of the Isotopic Composition of Hg and Pb …
Web9 apr. 2024 · Previous studies have found that oil sands industrial operations release mercury into the local (within ~50 km) environment. An information-theoretic approach revealed that the best model for explaining egg THg levels included Athabasca River flow, bird food source, and bird species. Web1 apr. 2024 · Download Citation On Apr 1, 2024, Yuzhu Han and others published Mercury biomagnification at higher rates than the global average in aquatic ecosystems of the Qinghai-Tibet Plateau Find, read ... Web9 aug. 2024 · In the present pilot study, we examined stable mercury isotope ratios in blood of 4 species of songbirds and the invertebrates they are likely foraging on in multiple habitats in a small watershed of mixed forest and wetlands in Acadia National Park in … matthew gumble