Optimization and application of a low cost, colorimetric screening method for mercury in marine sediment
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A rapid, inexpensive, colorimetric screening method for mercury (Hg) has been optimized to provide a semi-quantitative measurement of Hg concentration in marine sediment within the range 0.038 to 1.5 mg kg−1 encompassing the interim sediment quality guideline (ISQG) value of 0.13 mg kg−1 (CCME 1999) and the probable effects level (PEL) of 0.7 mg kg−1 for Hg in marine sediment (CCME 1999). Neither salinity (up to 41 practical salinity units (psu)) nor sediment organic matter (ΟΜ) content (up to 10%) affected the performance of the method. Accurate results were obtained for spike recovery experiments and analysis of certified reference material (CRM) BCR 580 Estuarine Sediment. The method was applied to sediment samples from Elefsina Bay, Greece. Screening results indicated Hg contamination in the bay, with concentrations exceeding the PEL value. Findings were confirmed by quantitative analysis of the samples by cold vapor atomic absorption spectrometry (CV-AAS), where results in the range 1.4–2.96 mg kg−1 were determined.
KeywordsMercury Screening Colorimetric Marine Sediment Elefsina
Sampling was carried out in cooperation with the Organization for the Development of the Thriasino Plain, Greece.
- Bazzicalupi, C., Caltagirone, C., Cao, Z. F., Chen, Q. B., Di Natale, C., Garau, A., Lippolis, V., Lvova, L., Liu, H. L., Lundstrom, I., Mostallino, M. C., Nieddu, M., Paolesse, R., Prodi, L., Sgarzi, M., & Zaccheroni, N. (2013). Multimodal use of new coumarin-based fluorescent chemosensors: Towards highly selective optical sensors for Hg2+ probing. Chemistry -A European Journal, 19, 14639–14653.CrossRefGoogle Scholar
- Boszke, L., Kowalski, A., Glosinska, G., Szarek, R., & Siepak, J. (2003). Environmental factors affecting speciation of mercury in the bottom sediment; an overview. Polish Journal of Environmental Studies, 12, 5–13.Google Scholar
- BS. (2000). British standards ISO 12880:2000: Characterisation of sludges – Determination of dry residue and water content. London: British Standards Institution.Google Scholar
- CCME (1999). Canadian sediment quality guidelines for protection of aquatic life, Mercury. Available at http://ceqg-rcqe.ccme.ca/download/en/241. Accessed June 2016.
- Deng, L., Ouyang, X. Y., Jin, J. Y., Ma, C., Jiang, Y., Zheng, J., Li, J. S., Li, Y. H., Tan, W. H., & Yang, R. H. (2013). Exploiting the higher specificity of silver amalgamation: selective detection of mercury(II) by forming Ag/hg amalgam. Analytical Chemistry, 85, 8594–8600.CrossRefGoogle Scholar
- EEA. (2005). UNEP/MAP, priority issues in the Mediterranean environment, report no. 5/2005. Luxembourg: Office for the Official Publications of the European Communities.Google Scholar
- EPA (2001), Methylmercury, Oral RfD assessment, Integrated Risk Information System. Available from http://www.epa.gov/iris/subst/0073.htm.
- Faust, S. D. & Osman, M. A. (1981). Chemistry of natural waters. Ann Arbor, Mich: Ann Arbor Science Publishers, Inc. Mercury, arsenic, lead, cadmium, selenium, and chromium in aquatic environments, p. 200–225.Google Scholar
- Gettler, A. O., & Kaye, S. (1950). A simple and rapid analytical method for Hg, Bi, Sb, and As in biologic materials. Journal of Laboratory and Clinical Medicine, 35, 146–151.Google Scholar
- Huange, Y. Q., Yin, J. C., Wang, Y. S., Xiao, X. L., Zhou, B., Xue, J. H., Tang, X., Wang, X. F., Zhu, Y. F., & Chen, S. H. (2016). Streptavidin and gold nanoparticles-based dual signal amplification for sensitive magnetoelastic sensing of mercury using a specific aptamer probe. Sensors and Actuators B: Chemical, 235, 507–514.CrossRefGoogle Scholar
- PE (2006). AAnalyst 200 User’s Guide, PerkinElmer, Inc., 710 Bridgeport Avenue, Connecticut, USA. Available from http://www.che.ntu.edu.tw/ntuche/equip_booking/files/AAnalyst%20200%20.pdf.
- Schumacher, B. A. (2002). Methods for the determination of total organic carbon (TOC) in soils and sediments. Washington, DC: U.S. Environmental Protection Agency, EPA/600/R-02/069 (NTIS PB2003-100822).Google Scholar
- WHO (2013). Mercury exposure and health impacts among individuals in the artisanal and small-scale gold mining (ASGM) community, World Health Organization, public health and environment, 20 Avenue Appia, 1211 Geneva 27, Switzerland. Available at http://www.who.int/ipcs/assessment/public_health/mercury_asgm.pdf. Accessed June 2014.