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Occurrence of fungal spores in drinking water: A review of pathogenicity, odor, chlorine resistance and control strategies
Fungi in drinking water have been long neglected due to the lack of convenient analysis methods, widely accepted regulations and efficient control strategies. However, in the last few decades, fungi in drinking water have been widely recognized as opportunity pathogens that cause serious damage to t...
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Published in: | The Science of the total environment 2022-12, Vol.853, p.158626-158626, Article 158626 |
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description | Fungi in drinking water have been long neglected due to the lack of convenient analysis methods, widely accepted regulations and efficient control strategies. However, in the last few decades, fungi in drinking water have been widely recognized as opportunity pathogens that cause serious damage to the health of immune-compromised individuals. In drinking water treatment plants, fungal spores are more resistant to chlorine disinfection than bacteria and viruses, which can regrow in drinking water distribution systems and subsequently pose health threats to water consumers. In addition, fungi in drinking water may represent an ignored source of taste and odor (T&O). This review identified 74 genera of fungi isolated from drinking water and presented their detailed taxonomy, sources and biomass levels in drinking water systems. The typical pathways of exposure of water-borne fungi and the main effects on human health are clarified. The fungi producing T&O compounds and their products are summarized. Data on free chlorine or monochloramine inactivation of fungal spores and other pathogens are compared. At the first time, we suggested four chlorine-resistant mechanisms including aggregation to tolerate chlorine, strong cell walls, cellular responses to oxidative stress and antioxidation of melanin, which are instructive for the future fungi control attempts. Finally, the inactivation performance of fungal spores by various technologies are comprehensively analyzed. The purpose of this study is to provide an overview of fungi distribution and risks in drinking water, provide insight into the chlorine resistance mechanisms of fungal spores and propose approaches for the control of fungi in drinking water.
[Display omitted]
•Summarized the occurrence and health risks of fungi in drinking water•Highlighted the contribution of tase and odor by fungi in drinking water•Hypothesized potential chlorine-resistant mechanisms of fungal spores•Compared the inactivation performance of fungal spore by different technologies•Proposed fungal species for water treatment plants to control |
doi_str_mv | 10.1016/j.scitotenv.2022.158626 |
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[Display omitted]
•Summarized the occurrence and health risks of fungi in drinking water•Highlighted the contribution of tase and odor by fungi in drinking water•Hypothesized potential chlorine-resistant mechanisms of fungal spores•Compared the inactivation performance of fungal spore by different technologies•Proposed fungal species for water treatment plants to control</description><identifier>ISSN: 0048-9697</identifier><identifier>EISSN: 1879-1026</identifier><identifier>DOI: 10.1016/j.scitotenv.2022.158626</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Chlorine-resistant mechanism ; Drinking water disinfection ; Fungi ; Odor ; Pathogenicity</subject><ispartof>The Science of the total environment, 2022-12, Vol.853, p.158626-158626, Article 158626</ispartof><rights>2022 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c348t-c7d392cd063f5499774abf4acb246997dd34bccc6f4f0aeef581fcd3b72db4e23</citedby><cites>FETCH-LOGICAL-c348t-c7d392cd063f5499774abf4acb246997dd34bccc6f4f0aeef581fcd3b72db4e23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Zhao, Heng-Xuan</creatorcontrib><creatorcontrib>Zhang, Tian-Yang</creatorcontrib><creatorcontrib>Wang, Hong</creatorcontrib><creatorcontrib>Hu, Chen-Yan</creatorcontrib><creatorcontrib>Tang, Yu-Lin</creatorcontrib><creatorcontrib>Xu, Bin</creatorcontrib><title>Occurrence of fungal spores in drinking water: A review of pathogenicity, odor, chlorine resistance and control strategies</title><title>The Science of the total environment</title><description>Fungi in drinking water have been long neglected due to the lack of convenient analysis methods, widely accepted regulations and efficient control strategies. However, in the last few decades, fungi in drinking water have been widely recognized as opportunity pathogens that cause serious damage to the health of immune-compromised individuals. In drinking water treatment plants, fungal spores are more resistant to chlorine disinfection than bacteria and viruses, which can regrow in drinking water distribution systems and subsequently pose health threats to water consumers. In addition, fungi in drinking water may represent an ignored source of taste and odor (T&O). This review identified 74 genera of fungi isolated from drinking water and presented their detailed taxonomy, sources and biomass levels in drinking water systems. The typical pathways of exposure of water-borne fungi and the main effects on human health are clarified. The fungi producing T&O compounds and their products are summarized. Data on free chlorine or monochloramine inactivation of fungal spores and other pathogens are compared. At the first time, we suggested four chlorine-resistant mechanisms including aggregation to tolerate chlorine, strong cell walls, cellular responses to oxidative stress and antioxidation of melanin, which are instructive for the future fungi control attempts. Finally, the inactivation performance of fungal spores by various technologies are comprehensively analyzed. The purpose of this study is to provide an overview of fungi distribution and risks in drinking water, provide insight into the chlorine resistance mechanisms of fungal spores and propose approaches for the control of fungi in drinking water.
[Display omitted]
•Summarized the occurrence and health risks of fungi in drinking water•Highlighted the contribution of tase and odor by fungi in drinking water•Hypothesized potential chlorine-resistant mechanisms of fungal spores•Compared the inactivation performance of fungal spore by different technologies•Proposed fungal species for water treatment plants to control</description><subject>Chlorine-resistant mechanism</subject><subject>Drinking water disinfection</subject><subject>Fungi</subject><subject>Odor</subject><subject>Pathogenicity</subject><issn>0048-9697</issn><issn>1879-1026</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNqFkMFOGzEQhq0KpIbAM-BjD2xqe531bm8RKqUSEpdytrzjcXC62MF2QPD09SqIa-dijfT_38gfIZecrTjj3ffdKoMvsWB4WQkmxIqv-050X8iC92poOBPdCVkwJvtm6Ab1lZzlvGN1VM8X5P0e4JASBkAaHXWHsDUTzfuYMFMfqE0-_PVhS19NwfSDbmjCF4-vc3hvymPcYvD1_tsVjTamKwqPU6wdrLnsczEz2ARLIYaSYkWXVElbj_mcnDozZbz4eJfk4ebnn-vb5u7-1-_rzV0DrexLA8q2gwDLutat5TAoJc3opIFRyK6u1rZyBIDOSccMolv33IFtRyXsKFG0S_LtyN2n-HzAXPSTz4DTZALGQ9ZCcdGvZV8PLIk6RiHFnBM6vU_-yaQ3zZmebeud_rStZ9v6aLs2N8cm1p9UQWnOzVatTwhF2-j_y_gHsnCQsw</recordid><startdate>20221220</startdate><enddate>20221220</enddate><creator>Zhao, Heng-Xuan</creator><creator>Zhang, Tian-Yang</creator><creator>Wang, Hong</creator><creator>Hu, Chen-Yan</creator><creator>Tang, Yu-Lin</creator><creator>Xu, Bin</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20221220</creationdate><title>Occurrence of fungal spores in drinking water: A review of pathogenicity, odor, chlorine resistance and control strategies</title><author>Zhao, Heng-Xuan ; Zhang, Tian-Yang ; Wang, Hong ; Hu, Chen-Yan ; Tang, Yu-Lin ; Xu, Bin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c348t-c7d392cd063f5499774abf4acb246997dd34bccc6f4f0aeef581fcd3b72db4e23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Chlorine-resistant mechanism</topic><topic>Drinking water disinfection</topic><topic>Fungi</topic><topic>Odor</topic><topic>Pathogenicity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhao, Heng-Xuan</creatorcontrib><creatorcontrib>Zhang, Tian-Yang</creatorcontrib><creatorcontrib>Wang, Hong</creatorcontrib><creatorcontrib>Hu, Chen-Yan</creatorcontrib><creatorcontrib>Tang, Yu-Lin</creatorcontrib><creatorcontrib>Xu, Bin</creatorcontrib><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The Science of the total environment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhao, Heng-Xuan</au><au>Zhang, Tian-Yang</au><au>Wang, Hong</au><au>Hu, Chen-Yan</au><au>Tang, Yu-Lin</au><au>Xu, Bin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Occurrence of fungal spores in drinking water: A review of pathogenicity, odor, chlorine resistance and control strategies</atitle><jtitle>The Science of the total environment</jtitle><date>2022-12-20</date><risdate>2022</risdate><volume>853</volume><spage>158626</spage><epage>158626</epage><pages>158626-158626</pages><artnum>158626</artnum><issn>0048-9697</issn><eissn>1879-1026</eissn><abstract>Fungi in drinking water have been long neglected due to the lack of convenient analysis methods, widely accepted regulations and efficient control strategies. However, in the last few decades, fungi in drinking water have been widely recognized as opportunity pathogens that cause serious damage to the health of immune-compromised individuals. In drinking water treatment plants, fungal spores are more resistant to chlorine disinfection than bacteria and viruses, which can regrow in drinking water distribution systems and subsequently pose health threats to water consumers. In addition, fungi in drinking water may represent an ignored source of taste and odor (T&O). This review identified 74 genera of fungi isolated from drinking water and presented their detailed taxonomy, sources and biomass levels in drinking water systems. The typical pathways of exposure of water-borne fungi and the main effects on human health are clarified. The fungi producing T&O compounds and their products are summarized. Data on free chlorine or monochloramine inactivation of fungal spores and other pathogens are compared. At the first time, we suggested four chlorine-resistant mechanisms including aggregation to tolerate chlorine, strong cell walls, cellular responses to oxidative stress and antioxidation of melanin, which are instructive for the future fungi control attempts. Finally, the inactivation performance of fungal spores by various technologies are comprehensively analyzed. The purpose of this study is to provide an overview of fungi distribution and risks in drinking water, provide insight into the chlorine resistance mechanisms of fungal spores and propose approaches for the control of fungi in drinking water.
[Display omitted]
•Summarized the occurrence and health risks of fungi in drinking water•Highlighted the contribution of tase and odor by fungi in drinking water•Hypothesized potential chlorine-resistant mechanisms of fungal spores•Compared the inactivation performance of fungal spore by different technologies•Proposed fungal species for water treatment plants to control</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.scitotenv.2022.158626</doi><tpages>1</tpages></addata></record> |
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subjects | Chlorine-resistant mechanism Drinking water disinfection Fungi Odor Pathogenicity |
title | Occurrence of fungal spores in drinking water: A review of pathogenicity, odor, chlorine resistance and control strategies |
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