Environmental monitoring and banking of marine pollutants by using common mussels

Ostapczuk, P.; Schladot, J. D.; Emons, Hendrik; Oxynos, K.; Schramm, Karl‐Werner; Grimmer, G.; Jacob, J

doi:10.1016/s0045-6535(97)00074-x

Cited by 19 publications

(8 citation statements)

References 3 publications

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“…Moreover, the need to carry out measurements on the bioindicator is typically less frequent when compared to direct water sampling due to movement of water bodies (e.g. estuaries and coastal zones) and temporal variations in contaminant concentration [12]. As such, bioindicators can give comprehensive information on the effects of the pollutant on the ecosystem compared to direct measurements of the physical/chemical parameters.…”

Section: Introductionmentioning

confidence: 99%

Assessment and Characterisation of Ireland's Green Tides (Ulva Species)

et al. 2017

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Enrichment of nutrients and metals in seawater associated with anthropogenic activities can threaten aquatic ecosystems. Consequently, nutrient and metal concentrations are parameters used to define water quality. The European Union’s Water Framework Directive (WFD) goes further than a contaminant-based approach and utilises indices to assess the Ecological Status (ES) of transitional water bodies (e.g. estuaries and lagoons). One assessment is based upon the abundance of opportunistic Ulva species, as an indication of eutrophication. The objective of this study was to characterise Ireland’s Ulva blooms through the use of WFD assessment, metal concentrations and taxonomic identity. Furthermore, the study assessed whether the ecological assessment is related to the metal composition in the Ulva. WFD algal bloom assessment revealed that the largest surveyed blooms had an estimated biomass of 2164 metric tonnes (w/w). DNA sequences identified biomass from all locations as Ulva rigida, with the exception of New Quay, which was Ulva rotundata. Some blooms contained significant amounts of As, Cu, Cr, Pb and Sn. The results showed that all metal concentrations had a negative relationship (except Se) with the Ecological Quality Ratio (EQR). However, only in the case of Mn were these differences significant (p = 0.038). Overall, the metal composition and concentrations found in Ulva were site dependent, and not clearly related to the ES. Nevertheless, sites with a moderate or poor ES had a higher variability in the metals levels than in estuaries with a high ES.

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Section: Introductionmentioning

confidence: 99%

Assessment and Characterisation of Ireland's Green Tides (Ulva Species)

et al. 2017

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“…This characteristic makes it possible to use them as "bioindicators" of aquatic pollution. Moreover, their use overcomes the problems associated with a direct survey of contaminants in water samples; the water drawings must be repeated periodically because of continuous movement of the waters and the fluctuation in contaminant levels (Ostapczuk et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Heavy Metals in Liver and Muscle of Bluefin Tuna (Thunnus thynnus) Caught in the Straits of Messina (Sicily, Italy)

Licata¹,

Trombetta²,

Cristani³

et al. 2005

Environ Monit Assess

111

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The present investigation was carried out on the bluefin tuna (Thunnus thynnus) collected during the month of April 2003 from the Straits of Messina. The aim of this study is to determine heavy metal levels (Cd, Cu, Hg, Mn, Pb and Zn) in liver and muscle tissues of 14 Thunnus thynnus of different age and sex and to investigate the relationships between fish sex and size (length and weight) and metal concentrations in the tissues. The concentrations of the various metals were determined by a Varian atomic absorption spectroscopy instrument. The results show significant variations (p < 0.01) for Hg and Zn concentrations in muscle than in liver samples. Concentrations of Cd and Pb are below the instrumental detection limits in almost all muscle samples. Levels of Hg (3.03 +/- 0.55 microg/g) are above the MRLs only in muscle (1 microg/g) establishing toxicological risks for the consumer. Regression analysis shows a negative correlation between mercury level and weight and length in samples from both female and male. No significant difference between mean heavy metals concentrations and male or female tuna is seen. For greater food safety, it would be advisable to reduce the mercury intake by selecting safer fish, species and size and by the avoidance of tuna fish consumption by pregnant women, young children and old people, who are more sensitive to mercury exposure.

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“…All organic solvents used were of high-purity (Optima grade) and purchased from Fisher Chemicals (Ottawa, Ontario, Canada). Twenty-five (25) individual APAHs including C 1 -naphthalene (1-methylnaphthalene; 2-methylnaphthalene), C 2 -naphthalene (2,6-dimethylnaphthalene), C 3naphthalene (2,3,5-trimethylnaphthalene), C 4 -naphthalene (1,4,6,7-tetramethylnaphthalene), C 1 -fluorene (1-methylfluorene), C 1 -chrysene…”

Section: Methodsmentioning

confidence: 99%

“…PACs and their alkyl congeners have been previously quantified by comparing their peaks areas with either the peak areas of an internal or external standard injected under similar condition. [25][26][27][28][29][30] Taken together, these challenges can lead to significant systematic biases in the quantification of APACs. [30][31][32] The most common approach to quantify APACs is based on gas chromatography/mass spectrometry (GC/MS) with electron ionization typically operated in selective ion monitoring (SIM) mode.…”

mentioning

confidence: 99%