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INTRODUCTION. In 2010, half of all newly registered cars were equipped with diesel engines ().The inhabitants of urban areas and nearly 3 million workers in Europe are exposed to diesel exhaust fumes (Groves and Cain, 2000; Kauppinen et al., 2000; Lewne et al., 2007).Diesel exhaust fumes are a complex mixture of gas phase and particle phase [diesel exhaust particles (DEP)].

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Viral filtration is a critical step in the purification of biologics and in the monitoring of microbiological water quality. Viral filters are also essential protection elements against airborne viral particles. The present review first focuses on cellulose based filter media currently used for size exclusion and/or adsorptive filtration of viruses from biopharmaceutical and environmental

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