There is a wealth of studies of polychlorinated biphenyls (PCB) in surface water and biota of the Arctic Ocean. Still, due to methodological difficulties related to controlling exposure concentrations over time, data on long-term effects of organic chemicals at low concentrations are limited. Scatter plots and correlation coefficients between the various exposure-based hazard scores. MC and LCCPs are being used as substitution products, but there is a knowledge gap concerning their bioaccumulatio... Reservoir sediment can work as both sink and source for contaminants. Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, SE-106 91 Stockholm, Sweden. PhD Environmental Science, Stockholm University. Institute for Hygiene and Environment, Hamburg, Germany, National Institute for Health and Welfare, Finland, Norwegian University of Life Sciences (NMBU), Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Norwegian Geotechnical Institute and Norwegian University of Life Sciences, Eawag: Das Wasserforschungs-Institut des ETH-Bereichs, Department of Communicable Disease Control and Health Protection - Unit for Environmental Health, Department of Environmental Science and Analytical Chemistry (ACES), Organic Contaminant Mixture Significantly Changes Microbenthic Community Structure and Increases the Expression of PAH Degradation Genes, Correction to “Bacterial Diversity Controls Transformation of Wastewater-Derived Organic Contaminants in River-Simulating Flumes”, SI: Bacterial Diversity Controls Transformation of Wastewater-Derived Organic Contaminants in River-Simulating Flumes, Bacterial Diversity Controls Transformation of Wastewater-Derived Organic Contaminants in River-Simulating Flumes, Using recirculating flumes and a response surface model to investigate the role of hyporheic exchange and bacterial diversity on micropollutant half-lives, Prospects for finding Junge variability-lifetime relationships for micropollutants in the Danube river, Bioaccumulation Potential of CPs in Aquatic Organisms: Uptake and Depuration in Daphnia magna, Environmental Risk of Metal Contamination in Sediments of Tropical Reservoirs. Anna har angett 1 jobb i sin profil. Here, the distribution and inventories of DDTs in water of the Arctic shelf seas and the interior basin are presented. Fig. The K(BC) were 20-170 times higher than corresponding estimated par... Quantification of natural and engineered carbon nanotubes (CNT) in the environment is urgently needed to study their occurrence and fate and to enable a proper risk assessment. A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.

The processes governing... Little is known about the distribution of polybrominated diphenyl ethers (PBDE) -also known as flame retardants- in major ocean compartments, with no reports yet for the large deep-water masses of the Arctic Ocean. University students and faculty, institute members, and independent researchers, Technology or product developers, R&D specialists, and government or NGO employees in scientific roles, Health care professionals, including clinical researchers, Journalists, citizen scientists, or anyone interested in reading and discovering research.

We investigate potential ecological risk to benthic organisms by metals contamination in six reservoirs in Southeast Brazil. Currently, such methods are lacking. Contaminated sediment can release hydrophobic organic contaminants (HOCs) and thereby act as a secondary source of primarily legacy hazardous substances to the water column. The ones marked, Environmental science & technology 38 (10), 2746-2751, Environmental science & technology 50 (11), 5614-5621. Correction for 'The dilemma in prioritizing chemicals for environmental analysis: known versus unknown hazards' by Anna Sobek et al., Environ. In this study we have evaluated the use of consumption of manufactured products (chemical products and articles) in the EU as proxies for diffuse emissions of chemicals to the environment. The following articles are merged in Scholar. Many transformation products (TPs) from organic micropollutants are not included in routine environmental monitoring programs due to limited knowledge of their occurrence and fate. This study presents the first field observations of polychlorinated biphenyls (PCB) in bacteria in oceanic waters.

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In this work, we developed a dialysis technique to determine black carbon (BC; diesel soot)-water distribution coefficients (K(BC)) of nine phenyl urea herbicides (PUHs). Environmental science & technology 40 (21), 6703-6708, 2006. Hyporheic exchange and sediment bacterial diversity are two factors gaining increasing importance as drivers for micropollutant degradation, but are complex to study... Persistence of chemical pollutants is difficult to measure in the field. PCB concentrations in coastal impacted sediment followed the temporal trend of estimated global emissions of PCBs and thus responded quickly to cha... Spatial and temporal trends of sources of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the Baltic Sea were evaluated by positive matrix factorization (PMF) and principal component analysis (PCA). ��,�g�����}���_~�#N*T��>7eB9ܵT�Ko\ec�,M`8\�T�K�][y,au�m�R�r����+�(�� U�S�X�� �Pb-�r���B��TY���2���of���:J_r��M�$�*"��}'N�%�˞h�з��� �J��$���Z�*�pI �jP���Bg�cȷ:;����T8�Sٕ�Q:���+�NK �z��8��L΁�=/� S~�mO=��6������Df�$r�V�zI�>3����>�Zw]3�J��g���x�:���׏�m���ho��7'���%�x���a�����>F����r��/�����ۮ�M�C}�]��^� �C|ZY|�����i��5��k�? Once released into the water column, contaminants can be toxic to biota and humans. In this study, we applied a strategic screening approach... Ecotoxicity testing is a crucial component of chemical risk assessment. A tool for modeling riverine particulate organic carbon (POC) loads on a catchment scale is currently lacking. A#�u4E[9�C���l6�J���wn{HYb,��3�3���7�=��f���/������?�G�B�St1��Ks�5��n��G�x�6�Gg�.�{{{|���ML �C�\>;>���{IW������:���w/\��kw��9}�SgC}Lz An efficient method to identify and prioritize critical compounds in terms of environmental relevance is needed. Junge relationships for micropollutants in rivers could provide evidence that half–li... Chlorinated paraffins (CPs) are industrial chemicals, subdivided into three categories: short chain (SCCPs), medium chain (MCCPs) and long chain (LCCPs) chlorinated paraffins. Existing frameworks for assessing the toxicity of mixtures require that both chemical composition and quantity are known. Stable nitrogen isotopes (δ¹⁵N) are used as indicators of trophic position (TP) of consumers.

Sci. �>��ם� ��}�8�ɇ���V���N�{5T����3+C�(�U���q��de�g*����T�A3:�z���]�2�La�g�o޺�rs��ʼnŐ�Μ �[�.���k����As�/���v�"�G�f�g��ʊ�J�Yi�:>�i���?��^�~�pʪ7��q_��]߸"F���kM%�!��q(8��8_��Ӭ�d��-Ul�W514���E���:n4Q,((Ӑ�z|b�0s*�m�����ة���S����r8w���d��R��P�N��%1�H���Sb{���#�~�k[���\�����/��q��y��W��`jO���!q@O˜ S�qب���r��r�X���8��t�7o���-�7o�7n����a{��w�(O�����s�n�.�ۥ3N�L���l�W��|��}����wp`����[}r�g��#�6�{�����`7��k� ��f�!l�evq�f��A�'��{8���=_bl.i��{��]��_�'�]&U��}{}�^m�K. All rights reserved. Recently, a series of studies on planetary boundary threats proposed seven chemical hazard profiles... Temporal trends of chlorinated paraffins (CPs) were analyzed in three sediment cores collected near different potential CP sources along the Swedish Baltic Sea coast.

���V�*�N_��N�zq�^ A3�rS��f�$��>~��.�pA��ӭ)pM�d�>L�.N6r Learn more at our website: https://ecorisk2050.eu/ 1. A��*H|���`�/Ƶ�Al�F���@�c�/#�G�G���?�M� �" Studying the effects of chemical contaminants on the structure and function of microbial and meiofauna communities have traditionally focused on specific effects of single contaminants on single species. Surface seawater concentrations of PCBs, relative congener abundance, and possible effects of cold condensation were studied along a transect from the southern Norwegian Sea to the central Arctic Ocean (62 degrees N-89 degrees N). The correct presentation of the author names is as given above. Large volume samples were collected from an ice breaker using a stainless steel surface seawater intake connected onlin... From previous laboratory and field studies, it remains unclear whether partitioning of hydrophobic organic contaminants (HOCs) to phytoplankton from water is kinetically limited or may be treated as an equilibrium process. Environmental monitoring focuses on few, and well-known, chemicals. h��Xko���+��Ņ�ݝ�P�3q���os��uȒ!1E���%%Q��(�m?������93�M:(����:IyF+��4�PBi� ��%�����*^��q,���O27)�4&X��&��Q���U�5v��l�2��FQq��le�"�P �8ϊ����(8ȐFţ��,�Ȣ��D�X;�N�����&��Ȭ��e����{��Lg�8@��F��%��Q�!R�A�Č Chemicals management is focused around the hazard, exposure and risk assessment of single chemicals. © 2008-2020 ResearchGate GmbH. SCCPs are currently restricted in Europe and North America. Here, we tested the resistance of 15 structurally different CNTs to chemothermal oxidation at 375 degrees C (CTO-375), a method used to... Black carbon (BC) is known to act as supersorbent for many organic contaminants. Verified email at itm.su.se. Address correspondence to E-mail address: anna.sobek@aces.su.se. E-mail address: anna.sobek@aces.su.se. 947 0 obj <>stream . C8–C36 CPs were found in sediment dating back to the 1930s.



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