Evolution and health risk of indicator microorganisms in landscape water replenished by reclaimed water
•The indicator microorganisms increased along the water flow direction.•Indicator microorganisms had a positive correlation with COD.•Increased indicator microorganisms led to over 30% health risk increase.•Indicator microorganisms’ concentration was higher in summer/autumn than in spring.•Staff rel...
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| Veröffentlicht in: | Journal of environmental sciences (China) 2024-12, Vol.146, p.186-197 |
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| creator | Chen, Yitong Qi, Chang Yu, Yanan Cao, Xiaoxin Zheng, Xiang Cheng, Rong |
| description | •The indicator microorganisms increased along the water flow direction.•Indicator microorganisms had a positive correlation with COD.•Increased indicator microorganisms led to over 30% health risk increase.•Indicator microorganisms’ concentration was higher in summer/autumn than in spring.•Staff related to water surface operation had the highest health risk.
As an important means to solve water shortage, reclaimed water has been widely used for landscape water supply. However, with the emergence of large-scale epidemic diseases such as SARS, avian influenza and COVID-19 in recent years, people are increasingly concerned about the public health safety of reclaimed water discharged into landscape water, especially the pathogenic microorganisms in it. In this study, the water quality and microorganisms of the Old Summer Palace, a landscape water body with reclaimed water as the only replenishment water source, were tracked through long-term dynamic monitoring. And the health risks of indicator microorganisms were analyzed using Quantitative Microbial Risk Assessment (QMRA). It was found that the concentration of indicator microorganisms Enterococcus (ENT), Escherichia coli (EC) and Fecal coliform (FC) generally showed an upward trend along the direction of water flow and increased by more than 0.6 log at the end of the flow. The concentrations of indicator microorganisms were higher in summer and autumn than those in spring. And there was a positive correlation between the concentration of indicator microorganisms and COD. Further research suggested that increased concentration of indicator microorganisms also led to increased health risks, which were more than 30% higher in other areas of the park than the water inlet area and required special attention. In addition, (water) surface operation exposure pathway had much higher health risks than other pathways and people in related occupations were advised to take precautions to reduce the risks.
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| doi_str_mv | 10.1016/j.jes.2023.06.039 |
| format | Article |
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As an important means to solve water shortage, reclaimed water has been widely used for landscape water supply. However, with the emergence of large-scale epidemic diseases such as SARS, avian influenza and COVID-19 in recent years, people are increasingly concerned about the public health safety of reclaimed water discharged into landscape water, especially the pathogenic microorganisms in it. In this study, the water quality and microorganisms of the Old Summer Palace, a landscape water body with reclaimed water as the only replenishment water source, were tracked through long-term dynamic monitoring. And the health risks of indicator microorganisms were analyzed using Quantitative Microbial Risk Assessment (QMRA). It was found that the concentration of indicator microorganisms Enterococcus (ENT), Escherichia coli (EC) and Fecal coliform (FC) generally showed an upward trend along the direction of water flow and increased by more than 0.6 log at the end of the flow. The concentrations of indicator microorganisms were higher in summer and autumn than those in spring. And there was a positive correlation between the concentration of indicator microorganisms and COD. Further research suggested that increased concentration of indicator microorganisms also led to increased health risks, which were more than 30% higher in other areas of the park than the water inlet area and required special attention. In addition, (water) surface operation exposure pathway had much higher health risks than other pathways and people in related occupations were advised to take precautions to reduce the risks.
[Display omitted]</description><identifier>ISSN: 1001-0742</identifier><identifier>DOI: 10.1016/j.jes.2023.06.039</identifier><identifier>PMID: 38969447</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>autumn ; avian influenza ; COVID-19 infection ; Enterococcus ; Enterococcus - isolation & purification ; Environmental Monitoring ; Escherichia coli ; Escherichia coli - isolation & purification ; evolution ; exposure pathways ; fecal bacteria ; Health risk ; Humans ; Indicator microorganisms ; Landscape water ; landscapes ; microbiological risk assessment ; Pearson correlation analysis ; people ; public health ; Quantitative microbial risk assessment (QMRA) ; Reclaimed water ; Redundancy analysis ; risk ; Risk Assessment ; spring ; summer ; surface water ; The old summer palace ; wastewater treatment ; water flow ; Water Microbiology ; Water Quality ; water shortages ; Water Supply</subject><ispartof>Journal of environmental sciences (China), 2024-12, Vol.146, p.186-197</ispartof><rights>2023</rights><rights>Copyright © 2023. Published by Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c386t-8c8eb90be60380e4808e5f56a5a002e5f8c557dfcbe84b6ece328f02d64390313</citedby><cites>FETCH-LOGICAL-c386t-8c8eb90be60380e4808e5f56a5a002e5f8c557dfcbe84b6ece328f02d64390313</cites><orcidid>0000-0002-1085-3598 ; 0000-0001-7157-2098</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S100107422300298X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/38969447$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chen, Yitong</creatorcontrib><creatorcontrib>Qi, Chang</creatorcontrib><creatorcontrib>Yu, Yanan</creatorcontrib><creatorcontrib>Cao, Xiaoxin</creatorcontrib><creatorcontrib>Zheng, Xiang</creatorcontrib><creatorcontrib>Cheng, Rong</creatorcontrib><title>Evolution and health risk of indicator microorganisms in landscape water replenished by reclaimed water</title><title>Journal of environmental sciences (China)</title><addtitle>J Environ Sci (China)</addtitle><description>•The indicator microorganisms increased along the water flow direction.•Indicator microorganisms had a positive correlation with COD.•Increased indicator microorganisms led to over 30% health risk increase.•Indicator microorganisms’ concentration was higher in summer/autumn than in spring.•Staff related to water surface operation had the highest health risk.
As an important means to solve water shortage, reclaimed water has been widely used for landscape water supply. However, with the emergence of large-scale epidemic diseases such as SARS, avian influenza and COVID-19 in recent years, people are increasingly concerned about the public health safety of reclaimed water discharged into landscape water, especially the pathogenic microorganisms in it. In this study, the water quality and microorganisms of the Old Summer Palace, a landscape water body with reclaimed water as the only replenishment water source, were tracked through long-term dynamic monitoring. And the health risks of indicator microorganisms were analyzed using Quantitative Microbial Risk Assessment (QMRA). It was found that the concentration of indicator microorganisms Enterococcus (ENT), Escherichia coli (EC) and Fecal coliform (FC) generally showed an upward trend along the direction of water flow and increased by more than 0.6 log at the end of the flow. The concentrations of indicator microorganisms were higher in summer and autumn than those in spring. And there was a positive correlation between the concentration of indicator microorganisms and COD. Further research suggested that increased concentration of indicator microorganisms also led to increased health risks, which were more than 30% higher in other areas of the park than the water inlet area and required special attention. In addition, (water) surface operation exposure pathway had much higher health risks than other pathways and people in related occupations were advised to take precautions to reduce the risks.
[Display omitted]</description><subject>autumn</subject><subject>avian influenza</subject><subject>COVID-19 infection</subject><subject>Enterococcus</subject><subject>Enterococcus - isolation & purification</subject><subject>Environmental Monitoring</subject><subject>Escherichia coli</subject><subject>Escherichia coli - isolation & purification</subject><subject>evolution</subject><subject>exposure pathways</subject><subject>fecal bacteria</subject><subject>Health risk</subject><subject>Humans</subject><subject>Indicator microorganisms</subject><subject>Landscape water</subject><subject>landscapes</subject><subject>microbiological risk assessment</subject><subject>Pearson correlation analysis</subject><subject>people</subject><subject>public health</subject><subject>Quantitative microbial risk assessment (QMRA)</subject><subject>Reclaimed water</subject><subject>Redundancy analysis</subject><subject>risk</subject><subject>Risk Assessment</subject><subject>spring</subject><subject>summer</subject><subject>surface water</subject><subject>The old summer palace</subject><subject>wastewater treatment</subject><subject>water flow</subject><subject>Water Microbiology</subject><subject>Water Quality</subject><subject>water shortages</subject><subject>Water Supply</subject><issn>1001-0742</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkD1PwzAQhj2AaPn4ASzII0vDOU4cR0yoKh8SEgvMluNcWpckLnZa1H-PSwsjTPbpfe7V6SHkkkHCgImbZbLEkKSQ8gREArw8ImMGwCZQZOmInIawBIAsh_yEjLgsRZllxZjMZxvXrgfreqr7mi5Qt8OCehveqWuo7Wtr9OA87azxzvm57m3oQgxoG_lg9Arppx7QU4-rFmO6wJpW2ziaVtsuDt_xOTludBvw4vCekbf72ev0cfL88vA0vXueGC7FMJFGYlVChQK4BMwkSMybXOhcA6TxK02eF3VjKpRZJdAgT2UDaS0yXgJn_Ixc73tX3n2sMQyqs8FgG69Ftw6KQyFSKaDk_6KplIVgIFgWUbZHo4QQPDZq5W2n_VYxUDv9aqmifrXTr0CoqD_uXB3q11XU8Lvx4z4Ct3sAo4-NRa-CsdgbrG2UN6ja2T_qvwA-XZjA</recordid><startdate>20241201</startdate><enddate>20241201</enddate><creator>Chen, Yitong</creator><creator>Qi, Chang</creator><creator>Yu, Yanan</creator><creator>Cao, Xiaoxin</creator><creator>Zheng, Xiang</creator><creator>Cheng, Rong</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7S9</scope><scope>L.6</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-1085-3598</orcidid><orcidid>https://orcid.org/0000-0001-7157-2098</orcidid></search><sort><creationdate>20241201</creationdate><title>Evolution and health risk of indicator microorganisms in landscape water replenished by reclaimed water</title><author>Chen, Yitong ; Qi, Chang ; Yu, Yanan ; Cao, Xiaoxin ; Zheng, Xiang ; Cheng, Rong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c386t-8c8eb90be60380e4808e5f56a5a002e5f8c557dfcbe84b6ece328f02d64390313</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>autumn</topic><topic>avian influenza</topic><topic>COVID-19 infection</topic><topic>Enterococcus</topic><topic>Enterococcus - isolation & purification</topic><topic>Environmental Monitoring</topic><topic>Escherichia coli</topic><topic>Escherichia coli - isolation & purification</topic><topic>evolution</topic><topic>exposure pathways</topic><topic>fecal bacteria</topic><topic>Health risk</topic><topic>Humans</topic><topic>Indicator microorganisms</topic><topic>Landscape water</topic><topic>landscapes</topic><topic>microbiological risk assessment</topic><topic>Pearson correlation analysis</topic><topic>people</topic><topic>public health</topic><topic>Quantitative microbial risk assessment (QMRA)</topic><topic>Reclaimed water</topic><topic>Redundancy analysis</topic><topic>risk</topic><topic>Risk Assessment</topic><topic>spring</topic><topic>summer</topic><topic>surface water</topic><topic>The old summer palace</topic><topic>wastewater treatment</topic><topic>water flow</topic><topic>Water Microbiology</topic><topic>Water Quality</topic><topic>water shortages</topic><topic>Water Supply</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Yitong</creatorcontrib><creatorcontrib>Qi, Chang</creatorcontrib><creatorcontrib>Yu, Yanan</creatorcontrib><creatorcontrib>Cao, Xiaoxin</creatorcontrib><creatorcontrib>Zheng, Xiang</creatorcontrib><creatorcontrib>Cheng, Rong</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of environmental sciences (China)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Yitong</au><au>Qi, Chang</au><au>Yu, Yanan</au><au>Cao, Xiaoxin</au><au>Zheng, Xiang</au><au>Cheng, Rong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evolution and health risk of indicator microorganisms in landscape water replenished by reclaimed water</atitle><jtitle>Journal of environmental sciences (China)</jtitle><addtitle>J Environ Sci (China)</addtitle><date>2024-12-01</date><risdate>2024</risdate><volume>146</volume><spage>186</spage><epage>197</epage><pages>186-197</pages><issn>1001-0742</issn><abstract>•The indicator microorganisms increased along the water flow direction.•Indicator microorganisms had a positive correlation with COD.•Increased indicator microorganisms led to over 30% health risk increase.•Indicator microorganisms’ concentration was higher in summer/autumn than in spring.•Staff related to water surface operation had the highest health risk.
As an important means to solve water shortage, reclaimed water has been widely used for landscape water supply. However, with the emergence of large-scale epidemic diseases such as SARS, avian influenza and COVID-19 in recent years, people are increasingly concerned about the public health safety of reclaimed water discharged into landscape water, especially the pathogenic microorganisms in it. In this study, the water quality and microorganisms of the Old Summer Palace, a landscape water body with reclaimed water as the only replenishment water source, were tracked through long-term dynamic monitoring. And the health risks of indicator microorganisms were analyzed using Quantitative Microbial Risk Assessment (QMRA). It was found that the concentration of indicator microorganisms Enterococcus (ENT), Escherichia coli (EC) and Fecal coliform (FC) generally showed an upward trend along the direction of water flow and increased by more than 0.6 log at the end of the flow. The concentrations of indicator microorganisms were higher in summer and autumn than those in spring. And there was a positive correlation between the concentration of indicator microorganisms and COD. Further research suggested that increased concentration of indicator microorganisms also led to increased health risks, which were more than 30% higher in other areas of the park than the water inlet area and required special attention. In addition, (water) surface operation exposure pathway had much higher health risks than other pathways and people in related occupations were advised to take precautions to reduce the risks.
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| subjects | autumn avian influenza COVID-19 infection Enterococcus Enterococcus - isolation & purification Environmental Monitoring Escherichia coli Escherichia coli - isolation & purification evolution exposure pathways fecal bacteria Health risk Humans Indicator microorganisms Landscape water landscapes microbiological risk assessment Pearson correlation analysis people public health Quantitative microbial risk assessment (QMRA) Reclaimed water Redundancy analysis risk Risk Assessment spring summer surface water The old summer palace wastewater treatment water flow Water Microbiology Water Quality water shortages Water Supply |
| title | Evolution and health risk of indicator microorganisms in landscape water replenished by reclaimed water |
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