Development of passive sampling devices for bioavailable contaminants of current and emerging concern: Waitemata Harbour case study

Stewart, Michael; Cameron, Marcus; McMurtry, Michael J.; Sander, SG; Benedict, Barry A.; Graham, L; Hosie, M; Green, T

doi:10.1080/00288330.2016.1181662

Cited by 8 publications

(4 citation statements)

References 37 publications

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“…Labile species are assimilated by the binding gel in a predictable, rate-controlled manner. After recovery of the DGT samplers, the gel layers are leached in acid and analysed by ICP-MS, which allows the estimation of labile copper [ 43 ]. Duplicate DGTs were randomly deployed into one incubation tank for every treatment level, two hours after embryo additions.…”

Section: Methodsmentioning

confidence: 99%

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Metabolic Regulation of Copper Toxicity during Marine Mussel Embryogenesis

et al. 2023

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The development of new tools for assessing the health of cultured shellfish larvae is crucial for aquaculture industries to develop and refine hatchery methodologies. We established a large-volume ecotoxicology/health stressor trial, exposing mussel (Perna canaliculus) embryos to copper in the presence of ethylenediaminetetraacetic acid (EDTA). GC/MS-based metabolomics was applied to identify potential biomarkers for monitoring embryonic/larval health and to characterise mechanisms of metal toxicity. Cellular viability, developmental abnormalities, larval behaviour, mortality, and a targeted analysis of proteins involved in the regulation of reactive oxygen species were simultaneously evaluated to provide a complementary framework for interpretative purposes and authenticate the metabolomics data. Trace metal analysis and speciation modelling verified EDTA as an effective copper chelator. Toxicity thresholds for P. canaliculus were low, with 10% developmental abnormalities in D-stage larvae being recorded upon exposure to 1.10 μg·L−1 bioavailable copper for 66 h. Sublethal levels of bioavailable copper (0.04 and 1.10 μg·L−1) caused coordinated fluctuations in metabolite profiles, which were dependent on development stage, treatment level, and exposure duration. Larvae appeared to successfully employ various mechanisms involving the biosynthesis of antioxidants and a restructuring of energy-related metabolism to alleviate the toxic effects of copper on cells and developing tissues. These results suggest that regulation of trace metal-induced toxicity is tightly linked with metabolism during the early ontogenic development of marine mussels. Lethal-level bioavailable copper (50.3 μg·L−1) caused severe metabolic dysregulation after 3 h of exposure, which worsened with time, substantially delayed embryonic development, induced critical oxidative damage, initiated the apoptotic pathway, and resulted in cell/organism death shortly after 18 h of exposure. Metabolite profiling is a useful approach to (1) assess the health status of marine invertebrate embryos and larvae, (2) detect early warning biomarkers for trace metal contamination, and (3) identify novel regulatory mechanisms of copper-induced toxicity.

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Section: Methodsmentioning

confidence: 99%

“…The DGT-labile metal concentration was calculated according to [ 43 ]. The bioavailable Cu concentration is assumed to be the labile fraction of dissolved Cu.…”

Section: Methodsmentioning

confidence: 99%

Metabolic Regulation of Copper Toxicity during Marine Mussel Embryogenesis

et al. 2023

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“…[ [330][331][332][333][334] River and lake waters PAHs; PCBs LDPE alone and alongside SR co-deployed with biota in a range of surface waters and sediments to monitor concentrations of a range of HOCs and access the bioaccumulation prediction capacity of each device for sampled biota at various trophic levels.…”

Section: Chemical Speciation Distribution and Degradation River Watersmentioning

confidence: 99%

Applications for Passive Sampling of Hydrophobic Organic Contaminants in Water—A Review

Taylor

Fones

Vrana

et al. 2019

Critical Reviews in Analytical Chemistry

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We comprehensively review the current state-of-the-art of environmental monitoring for hydrophobic organic contaminants in aqueous matrices using passive sampling devices. Principles of the theory of passive sampling are presented. Strategies for passive sampler design and operation, limitations in performance and data quality-assurance and quality-control are reviewed. Advances in applications of available passive sampling devices are extensively critiqued. Future trends and current challenges facing practitioners and barriers to further adoption of the devices are discussed.

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“…3. New innovative methods for heavy metal monitoring, such as passive sampling or remote sensing, could be explored to not only reach a high temporal resolution but also to measure the pollution load over time (Mikkelsen et al 2005;Roig et al 2011;Stewart et al 2016;Edenborn et al 2017;Swain and Sahoo 2017). 4.…”

Section: Recommendationsmentioning

confidence: 99%

Daily variation of heavy metal contamination and its potential sources along the major urban wastewater channel in Kampala, Uganda

Dietler

Babu

Cissé

et al. 2019

Environ Monit Assess

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Heavy metal pollution from untreated industrial wastewater has become a major concern to the environment and public health in many rapidly growing cities in low-income countries. Previous studies on heavy metals of urban wastewater systems have focused on long-term (weekly or seasonal) variations, while only few studies investigated short-term (daily) variation to capture potential bulk discharges. To monitor and enforce wastewater discharge regulations and reduce industrial pollution, a better understanding of the short-term variation of these pollutants and industrial discharge practices is needed. The aim of this study is to assess the daily variation of heavy metals and physicochemical parameters along the major urban wastewater system in Kampala, Uganda. Over 1 week, daily water samples were collected at 16 locations and analyzed for lead (Pb), mercury (Hg), copper (Cu), and chromium (Cr) and a range of physicochemical parameters. Additionally, 25 key informant interviews with industries were administered to investigate their potential to contaminate the environment. Among 78 water samples, 29 exceeded the national standards for Pb (> 0.1 mg/L) and one for Hg (> 0.01 mg/L). High daily variation and peak concentrations were detected which are likely due to industries retaining their effluents and discharging them irregularly. Although 24 industries used heavy metals in their manufacturing processes and are likely to discharge heavy metals, only ten industries had a wastewater treatment system in place. Our results show that repeated measurements of heavy metals over short time intervals are needed to capture their high daily variation in an urban wastewater system. Furthermore, there is an urgent need to register industries and to assess their effluent composition in order to select appropriate wastewater management measures.

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Development of passive sampling devices for bioavailable contaminants of current and emerging concern: Waitemata Harbour case study

Cited by 8 publications

References 37 publications

Metabolic Regulation of Copper Toxicity during Marine Mussel Embryogenesis

Metabolic Regulation of Copper Toxicity during Marine Mussel Embryogenesis

Applications for Passive Sampling of Hydrophobic Organic Contaminants in Water—A Review

Daily variation of heavy metal contamination and its potential sources along the major urban wastewater channel in Kampala, Uganda

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