Tag / Anthropocene
-
Dichlorodiphenyltrichloroethane (DDT) and Dichlorodiphenyldichloroethylene (DDE) levels in air and surface sea waters along the Antarctic Peninsula
Persistent organic pollutants (POPs) are widespread worldwide, even reaching polar regions. Among POPs, dichlorodiphenyltrichloroethane (DDT) and their metabolites have been reported scarcely in the Antarctic environment. Here we report the levels of p,p′-DDT, o,p′-DDT, p,p′-DDE, and o,p′-DDE in air and water samples collected during austral summer 2009. The levels found ranged from 0.25 to 4.26 pg m−3 in the atmospheric samples while…
-
Occurrence and diffusive air-seawater exchanges of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in Fildes Bay, King George Island, Antarctica
We report the levels of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in seawater and air, and the air-sea dynamics through diffusive exchange analysis in Fildes Bay, King George Island, Antarctica, between November 2019 and January 30, 2020. Hexachlorobenzene (HCB) was the most abundant compound in both air and seawater with concentrations around 39 ± 2.1 pg m−3 and 3.2 ± 2.4 pg L−1 respectively. The most abundant PCB congener…
-
The hotspots of entanglement for pinnipeds of the world
Pinnipeds represent one of the most vulnerable marine groups severely affected by entanglements. However, the lack of standardized data collection poses a challenge when comparing the impacts of fishing gear across various geographic regions. In this study, we employed Generalized Additive Models to predict entanglement incidents stemming from fishing-related activities for 13 pinniped species across…