Real time detection and characterisation of bioaerosol emissions from wastewater treatment plants

Bioaerosol emissions from wastewater treatment plants may pose adverse health impact on workers and nearby communities. To detect and characterise bioaerosol emissions from wastewater treatment plant (WWTP), a novel real-time bioaerosol sensor, Spectral Intensity Bioaerosol Sensor (SIBS) was employe...

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Published in:The Science of the total environment 2020-06, Vol.721, p.137629, Article 137629
Main Authors: Tian, Jiang-han, Yan, Cheng, Nasir, Zaheer Ahmad, Alcega, Sonia Garcia, Tyrrel, Sean, Coulon, Frederic
Format: Article
Language:English
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Bioaerosols
Fluorescence spectra
Real-time monitoring
Spectral Intensity Bioaerosol Sensor
Wastewater treatment plant
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description Bioaerosol emissions from wastewater treatment plants may pose adverse health impact on workers and nearby communities. To detect and characterise bioaerosol emissions from wastewater treatment plant (WWTP), a novel real-time bioaerosol sensor, Spectral Intensity Bioaerosol Sensor (SIBS) was employed at a WWTP and a background site. The SIBS records a range of data (size, shape, and fluorescence emission across 16 wavelength bands from 298 to 735 nm for two excitation wavelengths (285 nm and 370 nm)) on single particles in real time. Additionally, excitation-emission matrix (EEM) of wastewater samples obtained by a spectrofluorometer was compared with SIBS spectra from WWTP. The results showed that the average number concentrations of total particles (NT) and fluorescence particles (NF) were both higher at the WWTP (NT = 2.01 cm−3, NF = 1.13 cm−3) than the background site (NT = 1.79 cm−3, NF = 1.01 cm−3). The temporal variation of NF and NT was highly variable at the WWTP and the concentration peaks were consistent with on-site activities. Moreover, the time-resolved number-size distribution of fluorescent particles revealed the predominance of fine scale particles (
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subjects Bioaerosols
Fluorescence spectra
Real-time monitoring
Spectral Intensity Bioaerosol Sensor
Wastewater treatment plant
title Real time detection and characterisation of bioaerosol emissions from wastewater treatment plants
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