Mining Related PCB in Wetland Sediments of the River Lippe (North Rhine-Westphalia, Germany)

Ohlemacher, Sarah K.; Post, Claudia; Baier, Klaus

doi:10.1007/978-981-16-6573-8_2

Cited by 1 publication

(2 citation statements)

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“…18,26 Although previously used for the analysis of PCBs, [27][28][29][30] was not yet applied for the detection of PCBs in MIW. Generally, peer-reviewed studies that related PCBs to mining investigated river water 31 and sediments 32 near mine water discharges. Therefore, data on PCB concentrations in MIW are still missing in the scientific literature.…”

Section: ■ Introductionmentioning

confidence: 99%

“…However, because sample matrix can play a particular role in extraction by SPME, the analysis of PCBs in MIW can be highly challenging due to matrix effects caused by pH, dissolved salts, metals, sulfate, and suspended matter, which are specific to different mines. , Although previously used for the analysis of PCBs, − SPME was not yet applied for the detection of PCBs in MIW. Generally, peer-reviewed studies that related PCBs to mining investigated river water and sediments near mine water discharges. Therefore, data on PCB concentrations in MIW are still missing in the scientific literature.…”

Section: Introductionmentioning

confidence: 99%

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Between Underground and the Deep Blue Sea: Contamination of Mine Water Effluents by Polychlorinated Biphenyls (PCBs)

Wiltschka,

Wolkersdorfer,

Düring

et al. 2023

ACS EST Water

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Polychlorinated biphenyls (PCBs) were used as industrial chemicals due to their beneficial physicochemical properties in many applications until the recognition of their adverse effects. Although being banned for decades, PCBs are still ubiquitous in the environment due to their congener-specific high persistence and their ongoing remobilization from contaminated sites. While mining influenced water (MIW) was generally known to be a potential source of PCB contamination, hardly anything was known about concentrations, congener patterns, or PCB loads. For further elucidation of environmental risks, 14 MIW samples from five mine water effluents were analyzed for a set of 58 PCB congeners and biphenyl by a specifically optimized SPME-GC-MS method (LOD 0.004−0.58 ng L −1 ). As a result, 53 mono-to heptachlorinated congeners could be detected in concentrations of 0.01−25.9 ng L −1 per congener, of which mainly tri-but also diand tetrachlorinated PCBs were identified in higher concentrations. Total PCB concentrations (0.02−0.12 mg m −3 ) and annual loads (0.1−0.7 kg PCBs a −1 per mine) show the relevance of MIW as an additional point source for PCB release to the environment. Implementation of water treatment is recommended to achieve a decrease in these contaminant loads in agreement with worldwide efforts to eliminate PCBs.

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