Fluorescence water quality

Baker, A., Inverarity, R., and Ward, D. (2005). Catchment-scale fluorescence water quality determination. Water Sci. TechnoL, 52(9), 199-207. 

Water-Tracing Compounds. Another application of these fluorescent pyridones has been the development of a series of coaipounds useful as ground-water tracers. Smart and Laidlaw have outlined several qualities desirable in fluorescent water-tracing compounds (.18). 

Fluorescence data could be used to quantify oxygen demand values (chemical and biochemical) and total organic carbon values. Furthermore, the fluorescence spectral response can be apportioned to biodegradable (BOD) and non-biodegradable (COD-BOD) dissolved organics [71]. Other studies outline the advantages and drawbacks of the use of fluorescence techniques for waste-water quality monitoring [72,73]. 

European Standard. 2001. Water quality. Determination of mercury by atomic fluorescence spectrometry. EN 13506. European Committee for Standardization, Brussels, Belgium. 

Water quality projects such as those described below have been shown to be effective methods for engaging students in environmental chemistry courses for majors (Juhl et al. 1997) and for nonscience majors (Lunsford et al. 2007). When the water quality research projects were conducted, Chemistry and the Environment was linked to a world geography course as part of a learning community. Poor water quality and access to potable water were a global environmental theme for both courses. Consequently, the chemistry research projects focused primarily on water analysis. Field water testing kits, atomic absorption spectroscopy, and fluorescence methods (typically for biological con-... 

International Standards Organisation (2002) Water quality - determination of 15 polycyclic aromatic hydrocarbons (PAH) in water by HPLC with fluorescence detection after liquid-liquid extraction, ISO 17993 2002. 

The dangers of mercury (Hg) and its derivatives, especially organomercury compounds, have been well documented for almost half a century. Significant concerns remain regarding mercury contamination in aqueous ecosystems. The US EPA has advanced water quality criteria [1] for the protection of organisms native to water environments. The criterion for mercury in fi esh water ecosystems is 12 nanogram/liter (ng/1), and the mercury chronic criterion for salt water is 25 ng/1. These extremely low criteria present significant demands for the analyst, and atomic fluorescence spectroscopy provides a viable option for the measurements. 

Laser Fluorimeter As 2i source of biological information we propose the use of a multi-station (up to 12 sampling locations) towed sea water laser fluorimeter for water quality analysis specific to selected hydrocarbons which might be present in the area. The laser excites elements of the plankton population and that of calibrated hydrocarbons (e.g. breakdown products of munitions contents) present in the water. The fluorescent spectra are received through a fibre optic cable, split and counted through specific filters. From this data a direct correlation of the effects of pollution on the plankton population can be made. The system would be towed in conjunction with the multi-sensor towed array. 

The intense fluorescence intensity associated with sewage-derived DOM has led to the investigation of fluorescence as a marker for existing biochemical and chemical parameters commonly used to determine wastewater quality and monitor wastewater treattnent processes (Reynolds and Ahmad, 1997 Ahmad and Reynolds, 1999 Reynolds, 2002 Vasel and Praet, 2002 Lee and Ahn, 2004 Cumberland and Baker, 2007 Hudson et al., 2008 Hur et al., 2008). Relationships between the fluorescence intensity of various peaks (A, B, T, and C) and water quality parameters have been investigated. The most common wastewater quality parameters investigated include the 5-day BOD COD of filtered and unflltered... 

Ahmad, S.R. and Reynolds, D.M. (1999). Monitoring of water quality using fluorescence techniques, prospect of on-line process control. Water Res., 33, 2069-2074. 

Baker, A., and Inverarity, R. (2004). Protein-like fluorescence intensity as a possible tool for determining river water quality. Elydrol. Process., 18(15), 2927-2945. 

Carstea, E., Baker, A., Johnson, R., and Reynolds, D.M. (2010). Real-time monitoring of river water quality using in-line continuous acquisition of fluorescence excitation and emission matrices. Water Res., 44(18), 5356-5366. 

Hur, J., Hwang, S.J., and Shin, J.K. (2008). Using synchronous fluorescence technique as a water quality monitoring tool for an urban river. Water, Air, Soil Pollut., 191 (1 ), 231-243. 

Hudson, N., Baker, A., Ward, D., Reynolds, D.M., Brunsdon, C., Carliell- Marquet, C., and Browning, S. (2008). Can fluorescence spectrometry be used as a surrogate for the Biochemical Oxygen Demand (BOD) test in water quality assessment An example from South West England. Sci. Total Environ., 391(1), 149-158. 

Baker, A. (2002). Fluorescence properties of some farm wastes Implications for water quality monitoring. Water Res., 36(1), 189-195. 

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