Monitoring micropollutants in marine waters, can quality standards be met?

Ghekiere, Ariane; Verdonck, Frederik; Claessens, M.; Monteyne, E.; Roose, Patrick; Wille, Klaas; Goffin, A.; Rappé, K.; Janssen, Colin R.

doi:10.1016/j.marpolbul.2012.12.024

Cited by 28 publications

(11 citation statements)

References 22 publications

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“…These structures were selected to span a range of physicochemical (i.e., log K OW ) and photochemical properties (HOMO–LUMO gap), as well as to serve as a basis for comparison with the PAHs investigated in earlier literature studies. Benzo[ ghi ]perylene was also specifically included because reliable chronic toxicity data are needed to critically re‐examine the current European Union water quality objective for this substance, safe levels of which were found to be frequently exceeded in Belgian surface waters .…”

Section: Methodsmentioning

confidence: 99%

Chronic toxicity of selected polycyclic aromatic hydrocarbons to algae and crustaceans using passive dosing

Bragin

Parkerton

Redman

et al. 2016

Enviro Toxic and Chemistry

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Because of the large number of possible aromatic hydrocarbon structures, predictive toxicity models are needed to support substance hazard and risk assessments. Calibration and evaluation of such models requires toxicity data with well-defined exposures. The present study has applied a passive dosing method to generate reliable chronic effects data for 8 polycyclic aromatic hydrocarbons (PAHs) on the green algae Pseudokirchneriella subcapitata and the crustacean Ceriodaphnia dubia. The observed toxicity of these substances on algal growth rate and neonate production were then compared with available literature toxicity data for these species, as well as target lipid model and chemical activity-based model predictions. The use of passive dosing provided well-controlled exposures that yielded more consistent data sets than attained by past literature studies. Results from the present study, which were designed to exclude the complicating influence of ultraviolet light, were found to be well described by both target lipid model and chemical activity effect models. The present study also found that the lack of chronic effects for high molecular weight PAHs was consistent with the limited chemical activity that could be achieved for these compounds in the aqueous test media. Findings from this analysis highlight that variability in past literature toxicity data for PAHs may be complicated by both poorly controlled exposures and photochemical processes that can modulate both exposure and toxicity. Environ Toxicol Chem 2016;35:2948-2957. © 2016 SETAC.

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Section: Methodsmentioning

confidence: 99%

Chronic toxicity of selected polycyclic aromatic hydrocarbons to algae and crustaceans using passive dosing

Bragin

Parkerton

Redman

et al. 2016

Enviro Toxic and Chemistry

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“…The presented results are consistent with a similar study conducted by Ghekiere et al (2013), who also found a widespread exceedance of environmental thresholds in a monitoring study of the Belgian coastal zone. However, more worrisome than the determined total risk quotients of 9.3 or less (if only the quantifiable risk quotients are considered) is the fact that for several highly potent environmental chemicals, such as phenyltins, estrogens and pesticides, current routine analytical methods are not powerful enough to determine whether the corresponding environmental threshold concentrations are exceeded, or whether there is a certain margin of safety.…”

Section: Discussionsupporting

confidence: 93%

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Supplemental Information 1: The File Contains the Supporting Table 1 and 2, Containing Environmental Thresholds for the Marine

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Abstract:Chemical pollution was monitored and assessed along the Swedish west coast. 62 of 172 analyzed organic chemicals were detected in the water phase of at least one of five monitored sites. A Concentration Addition based screening-level risk assessment indicates that all sites are put at risk from chemical contamination, with total risk quotients between 2 and 9. Only at one site did none of the individual chemicals exceeded its individual environmental threshold (PNEC, EQS). The monitoring data thus demonstrate a widespread blanket of diffuse pollution, with no clear trends amongst sites. Further issues critical for the environmental chemical risk assessment include the challenges to achieve sufficiently low levels of detection especially for hormones and cybermethrin (a pyrethroid insecticide), the appropriate consideration of non-detects and the limited availability of reliable PNECs and EQS values.

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“…These contaminants may have dual mechanisms of toxicity as planar PAHs are normally associated with the activation of the aryl hydrocarbon rather than androgen receptor, and as a result have the potential to induce the neoplastic transformations in cells (Dietrich and Kaina, 2010). It is likely that the PAHs arose from exposure of clams to fossil oil spillage either from shipping or oil refining industries present in Southampton estuary, although a contribution from pyrogenic sources is also possible (Ghekiere et al, 2013;Manzetti, 2013;Nikolaou et al, 2009;Zemo, 2009). However, the significance of this finding of the bioaccumulation of AA contaminants in clam tissues is unclear.…”

Section: Profiles and Characterisation Of Androgen Receptor Active Comentioning

confidence: 99%

Widespread contamination of coastal sediments in the Transmanche Channel with anti-androgenic compounds

Álvarez-Muñoz

Indiveri

Rostkowski

et al. 2015

Marine Pollution Bulletin

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Monitoring micropollutants in marine waters, can quality standards be met?

Cited by 28 publications

References 22 publications

Chronic toxicity of selected polycyclic aromatic hydrocarbons to algae and crustaceans using passive dosing

Chronic toxicity of selected polycyclic aromatic hydrocarbons to algae and crustaceans using passive dosing

Untitled

Widespread contamination of coastal sediments in the Transmanche Channel with anti-androgenic compounds

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