TOTAL LUMINESCENT SPECTROSCOPY FOR REMOTE LASER
DIAGNOSTICS OF NATURAL WATER QUALITY
Alexander Dudelzak
MPB Technologies Inc.
1725 Noth Service Road/Trans-Canada Highway
Dorval, Quebec H9P 1J1
Sergey M. Babichenko, Larissa V. Poryvkina
Institute for Ecological and Marine Research
Estonian Academy of Sciences
1 Paldiski Road, 200031 Tallinn, Estonia, USSR
ABSTRACT
The Total Luminescent Spectroscopy (TLS) approach modified for laser remote water quality estimation is
developed. Two-dimensional TLS-signatures can serve as representative indicators of both water statistically
"normal" state and departures of it. It is shown how, with the aid of laboratory catalohs of signatures for
important pollutants, it is possible to detect oils in water at levels substantially below those of spills (of a few
pl/1), and to identify groups of pollutants against a background of natural suspended matter fluorescence.
A tunable laser remote spectrometer developed by the authors for marine research is described.
230 300 330 400 490 300 SAG
O-nSSiON WAVgLENCtH. nm
Fig.l. TLS-signatures of natural waters from
different aquatoria (remote mode) and of oil
dissolved in bi-distilled water (laboratory catalog):
a) pure aquatorium near Lahemaa National Park
(Estonia);
b) Siberian crude oil P-01 in bi-distilled water,
concentration 5p/l;
c) polluted area in the Finnish Gulf.
304
