Spatial and temporal distribution of chiral pesticides in Calanus spp. from three Arctic fjords

Carlsson, Pernilla; Warner, Nicholas A.; Hallanger, Ingeborg G.; Herzke, Dorte; Kallenborn, Roland

doi:10.1016/j.envpol.2014.05.021

Cited by 19 publications

(19 citation statements)

References 34 publications

(58 reference statements)

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“…feeding behaviour (Evenset et al 2016 ; Hallanger et al 2011b ). A comparative study, in which enantiomer-selective distribution patterns of chlorinated pesticides in low trophic level organisms were associated with ocean current profiles in coastal Svalbard, indicates the influence of oceanographic and climate variables on the pollutant pathways (Carlsson et al 2014b ; Hallanger et al 2011a ). It is, thus, scientifically confirmed that even low trophic level organisms bioaccumulate organochlorine contaminants and supports earlier observations (Borga et al 2005a , b ).…”

Section: Pcb Occurrence In Biota and Trends In The Arcticmentioning

confidence: 99%

Polychlorinated biphenyls (PCBs) as sentinels for the elucidation of Arctic environmental change processes: a comprehensive review combined with ArcRisk project results

Carlsson

Breivik

Brorström-Lundén

et al. 2018

Environ Sci Pollut Res

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Polychlorinated biphenyls (PCBs) can be used as chemical sentinels for the assessment of anthropogenic influences on Arctic environmental change. We present an overview of studies on PCBs in the Arctic and combine these with the findings from ArcRisk—a major European Union-funded project aimed at examining the effects of climate change on the transport of contaminants to and their behaviour of in the Arctic—to provide a case study on the behaviour and impact of PCBs over time in the Arctic. PCBs in the Arctic have shown declining trends in the environment over the last few decades. Atmospheric long-range transport from secondary and primary sources is the major input of PCBs to the Arctic region. Modelling of the atmospheric PCB composition and behaviour showed some increases in environmental concentrations in a warmer Arctic, but the general decline in PCB levels is still the most prominent feature. ‘Within-Arctic’ processing of PCBs will be affected by climate change-related processes such as changing wet deposition. These in turn will influence biological exposure and uptake of PCBs. The pan-Arctic rivers draining large Arctic/sub-Arctic catchments provide a significant source of PCBs to the Arctic Ocean, although changes in hydrology/sediment transport combined with a changing marine environment remain areas of uncertainty with regard to PCB fate. Indirect effects of climate change on human exposure, such as a changing diet will influence and possibly reduce PCB exposure for indigenous peoples. Body burdens of PCBs have declined since the 1980s and are predicted to decline further.

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Section: Pcb Occurrence In Biota and Trends In The Arcticmentioning

confidence: 99%

Polychlorinated biphenyls (PCBs) as sentinels for the elucidation of Arctic environmental change processes: a comprehensive review combined with ArcRisk project results

Carlsson

Breivik

Brorström-Lundén

et al. 2018

Environ Sci Pollut Res

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“…found higher chlordane (CHL) concentrations, but lower HCB concentrations, in zooplankton from ice-covered Arctic water masses than in those from Atlantic water masses without ice cover. 35 Several studies have shown relationships between sea ice parameters and POP concentrations in marine mammals (Table S1 †), which may be related to various processes. Studies on ringed seals from several areas of the Canadian Arctic have reported signicant relationships between concentrations of PCBs and/or chlorinated pesticides and sea ice coverage.…”

Section: B3 Sea Icementioning

confidence: 99%

The influence of global climate change on accumulation and toxicity of persistent organic pollutants and chemicals of emerging concern in Arctic food webs

Borgå

McKinney

Routti

et al. 2022

Environ. Sci.: Processes Impacts

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“…Selective degradation or accumulation of single enantiomers may have toxicological implications. Indeed, some studies demonstrated that pesticides enantiomers selectively interact with biological systems and may behave as completely different substances [120]. For instance, the (-) enantiomer of o,p'-DDT has a higher estrogenic activity than (+) o,p'-DDT [122].…”

Section: Pesticidesmentioning

confidence: 99%

“…Enantiomers of α-HCH and chlordane, among others, were found in aquatic animals from the Baltic Sea (fish and seals), Arctic (seals) and Antarctic Seas (penguins) with changed isomeric and EF [98,120,121]. Table 2 shows the concentration and enantiomeric composition (ER or EF) of α-HCH, cis and trans-chlordane, octachlorochlordane, heptachlor-exo-epoxide, oxychlordane, dichlorprop (DCPP), mecoprop (MCPP), pentachloro-cyclohexene and bromocyclin in environmental samples, namely surface waters (e.g., river, sea and lake), sediments, rain water and wastewaters ( Table 2).…”

Section: Pesticidesmentioning

confidence: 99%

“…Some pesticides are lipophilic and tend to accumulate not only in soil and sediments, but also in the food web, persisting for more time than expected and causing adverse effects [6,98,119]. In fact, pesticides already banned for many years as α-hexachlorocyclohexane (lindane, α-HCH), chlordane and DDT are still found in aquatic animals and in different regions of the globe [120,121]. Besides their persistence and toxicity, various pesticides are chiral and used as racemic mixtures or enantiomerically pure.…”

Section: Pesticidesmentioning

confidence: 99%

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Occurrence of Chiral Bioactive Compounds in the Aquatic Environment: A Review

Ribeiro

Maia

et al. 2017

Symmetry

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Abstract:In recent decades, the presence of micropollutants in the environment has been extensively studied due to their high frequency of occurrence, persistence and possible adverse effects to exposed organisms. Concerning chiral micropollutants in the environment, enantiomers are frequently ignored and enantiomeric composition often neglected. However, enantioselective toxicity is well recognized, highlighting the need to include enantioselectivity in environmental risk assessment. Additionally, the information about enantiomeric fraction (EF) is crucial since it gives insights about: (i) environmental fate (i.e., occurrence, distribution, removal processes and (bio)degradation); (ii) illicit discharges; (iii) consumption pattern (e.g., illicit drugs, pharmaceuticals used as recreational drugs, illicit use of pesticides); and (iv) enantioselective toxicological effects. Thus, the purpose of this paper is to provide a comprehensive review about the enantioselective occurrence of chiral bioactive compounds in aquatic environmental matrices. These include pharmaceuticals, illicit drugs, pesticides, polychlorinated biphenyls (PCBs) and polycyclic musks (PCMs). Most frequently analytical methods used for separation of enantiomers were liquid chromatography and gas chromatography methodologies using both indirect (enantiomerically pure derivatizing reagents) and direct methods (chiral stationary phases). The occurrence of these chiral micropollutants in the environment is reviewed and future challenges are outlined.

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Spatial and temporal distribution of chiral pesticides in Calanus spp. from three Arctic fjords

Cited by 19 publications

References 34 publications

Polychlorinated biphenyls (PCBs) as sentinels for the elucidation of Arctic environmental change processes: a comprehensive review combined with ArcRisk project results

Polychlorinated biphenyls (PCBs) as sentinels for the elucidation of Arctic environmental change processes: a comprehensive review combined with ArcRisk project results

The influence of global climate change on accumulation and toxicity of persistent organic pollutants and chemicals of emerging concern in Arctic food webs

Occurrence of Chiral Bioactive Compounds in the Aquatic Environment: A Review

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