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Real-time monitoring of river water quality using in-line continuous acquisition of fluorescence excitation and emission matrices

Reynolds, Darren M.

Authors



Abstract

Birmingham, UK. River water was diverted to a portable laboratory via a continuous flow pump and filter system. Fluorescence excitation-emission matrices data was recorded every 3 minutes using a flow cell (1cm pathlength) coupled to a fiber optic probe. This real-time fluorescence EEM data (Excitation, 225-400 nm at 5 nm steps, emission, 280-500 nm at 2 nm steps) was collected 'in-line'and directly compared with the spectrophotometric properties and physical and chemical parameters of river water samples collected off-line at known time intervals. Over the monitoring period, minor pollution pulses from cross connections were detected and identified hourly along with a random diesel pollution event. This work addresses the practicalities of measuring and detecting fluorescence EEM in the field and discusses the potential of this technological approach for further understanding important hydrological and biogeochemical processes. Problems associated with fouling and system failure are also reported.

Citation

Reynolds, D. M. (2009, December). Real-time monitoring of river water quality using in-line continuous acquisition of fluorescence excitation and emission matrices. Poster presented at American Geophysical Union Fall Meeting, San Francisco, USA

Presentation Conference Type Poster
Conference Name American Geophysical Union Fall Meeting
Conference Location San Francisco, USA
Start Date Dec 1, 2009
End Date Dec 1, 2009
Publication Date Dec 1, 2009
Peer Reviewed Peer Reviewed
Keywords bio-optics, biogeosciences, instruments and techniques, pollution (urban, regional and global)
Water quality
Public URL https://uwe-repository.worktribe.com/output/990244
Publisher URL http://www.agu.org
Additional Information Additional Information : Cited as: Carstea, E., Baker, A., Johnson, R. and Reynolds, D. M. Real-time monitoring of river water quality using in-line continuous acquisition of fluorescence excitation and emission matrices. Eos Trans. AGU, 2009, 90(52), Fall Meet. Suppl., Abstract. B43D-0407.