Composition,dispersion,and health risks of bioaerosols in wastewater treatment plants:A review  

作　　者：Yunping Han Lin Li Ying Wang Jiawei Ma Pengyu Li Chao Han Junxin Liu 

机构地区：[1]State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China [2]National Engineering Laboratory for VOCs Pollution Control Material&Technology,University of Chinese Academy of Sciences,Beijing 101408,China [3]Tianjin Chengjian University,Tianjin 300384,China [4]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Frontiers of Environmental Science & Engineering》2021年第3期7-22,共16页环境科学与工程前沿（英文）

基　　金：the Special Fund from the State Key Joint Laboratory of Environment Simulation and Pollution Control(Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences)(No.19Z03ESPCR);the National Natural Science Foundation of China(Grant Nos.51478456 and 41961134033).

摘　　要：Bioaerosols are defined as airbome particles(0.05-100 um in size)of biological origin.They are considered potentially harmful to human health as they can contain pathogens such as bacteria,fungi,and viruses.This review summarizes the most recent research on the health risks of bioaerosols emitted from wastewater treatment plants(WWTPs)in order to improve the control of such bioaerosols.The concentration and size distribution of WWTP bioaerosols;their major emission sources,composition,and health risks;and considerations for future research are discussed.The major themes and findings in the literature are as follows:the major emission sources of WWTP bioaerosols include screen rooms,sludge-dewatering rooms,and acration tanks;the bioaerosol concentrations in screen and sludge-dewatering rooms are higher than those outdoors.WWTP bioacrosols contain a variety of potentially pathogenic bacteria,fungi,antibiotic resistance genes,viruses,endotoxins,and toxic metal(loid)s.These potentially,pathogenic substances spread with the bioaerosols,thereby posing health risks to workers and residents in and around the WWTP.Inhalation has been identified as the main exposure route,and children are at a higher risk of this than adults.Future studies should identify emerging contaminants,establish health risk assessments,and develop prevention and control systems.

关 键 词：Wastewater treatment plant BIOAEROSOLS PATHOGEN DISPERSION Risk assessment 

分 类 号：X703[环境科学与工程—环境工程]