RT Journal Article T1 Bioaerosol emission from wastewater treatment plants A1 Pascual, Leonor A1 Pérez Luz, Sara A1 Yañez, María Adela A1 Santamaria, Ana A1 Gilbert, Karina A1 Salgot, Miquel A1 Apraiz, David A1 Catalan, Vicente AB In this report we describe the results of a study conducted to better estimate airborne microorganisms present in wastewater treatment plants (WWTP) environments. Air samples were taken with the Air Sampler MAS 100 impactor(Merck) at each stage of an activated-sludgeWWTP (pre-treatment, primary clarifiers, aeration basins and sludge processors), in order to determine levels of contamination according to work stations. Culture methods were used to investigate heterotrophic plate count, moulds and yeasts, total and fecalcoliforms, Pseudomonas aeruginosa and species belonging to Mycobacteriumtuberculosis complex, whereas these last microorganisms were also analysed by Polymerase Chain Reaction (PCR) methods. Statistical analysis showed that pretreatment and primary clarifiers were the stages with the highest emission of bioaerosols, and that bioaerosol concentration at each stage depended on wind speed and daily inflow at the WWTP. Low concentrations of P. aeruginosa were found isolated at pretreatment and primary clarifiers; however, species of M.tuberculosis complex were not detected at any stage of the treatment plant. PB Springer/Kluwer Academic Publishers SN 0393-5965 YR 2003 FD 2003 LK https://hdl.handle.net/20.500.14352/94431 UL https://hdl.handle.net/20.500.14352/94431 LA eng NO Pascual, L., Pérez-Luz, S., Yáñez, M.A. et al. Bioaerosol emission from wastewater treatment plants. Aerobiologia 19, 261–270 (2003). https://doi.org/10.1023/B:AERO.0000006598.45757.7f NO Fundación Agbar NO Aigües de Barcelona DS Docta Complutense RD 6 abr 2025