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Optical methOds fOr water pOllutiOn mOnitOring

Setting Equation (6) equal to zero and solving for P also provides the level of population at the turning point as referred to above. Our results therefore clearly suggest that the marginal impact of population on sulfur dioxide emissions is an increasing function of the level of population i.e., the greater the level of population, the greater the envi- ronmental impact of each additional unit of population. As a next step, column III reports results from the model that examines the role played by the age structure of the population. Because we found total population size to have a non-linear effect on emissions, we retain the squared term in. | OPTICAL METHODS FOR WATER POLLUTION MONITORING MÉTODOS ÓPTICOS PARA MONITORIZAQAO DE POLUIỌÃO DA ÁGUA Andrei B. Utkin Alexander V Lavrov Rui Vilar Sergey Babichenko Sergey Shchemelyov Innokenty Sobolev Luísa Bastos Richard A. Deurloo Jesús Torres Palenzuela Nina V Yarovenko Isabel Cruz ABSTRACT An innovative optical method for remote monitoring of water pollution was developed and tested in AMPERA ERA-NET Programme project DEOSOM. The method is based on remote detection of laser-induced fluorescent radiation LIF LIDAR . In the project compact and light LIF LIDAR systems were developed which can be operated by relatively unskilled personnel and used for early air- or shipborne pollution detection and evaluation specifically for oil spill detection. The systems are provided with direct georeferencing for exact localization of the oil spills and artificial intelligence for their automatic characterization. The paper presents the principles of the method and the results of tests carried out in the field and laboratory conditions. Keywords Laser Induced Fluorescence Remote Detection Pollution Oil Spill. RESUMO Um inovador método óptico para a monitorizaqao remota da poluiẹão aquática foi desenvolvido e testado no âmbito do projecto DEOSOM financiado pelo programa AMPERA ERA-NET. O método é baseado na detecẹão remota de radiaẹão fluorescente induzida por laser LIF LIDAR . No projecto foram desenvolvidos detectores LIF LIDAR compactos que podem ser utilizados por pessoal sem qualificaẹão especifica para a detecẹão precoce e avaliaẹão da poluiẹão através de aeronaves e embarcaẹões especificamente na detecẹão de derrames de petróleo. Os sistemas são fornecidos com georreferenciaẹão directa para a localizacao exacta do derramamento e inteligência artificial para a sua caracterizacao automática. O artigo apresenta os principios em que baseia o método bem como os resultados dos testes realizados em campo e em laboratório. Palavras-chave Fluorescência Induzida por Laser .