Temporal and spatial variations of disinfection by-products in South Taihu's drinking water, Zhejiang Province, China
Some disinfection by-products (DBPs) in drinking water present a potential safety concern. This study focuses on the elements influencing DBPs formation. A total of 120 water samples were collected from 10 different drinking water facilities spanning 5 counties within Huzhou, Zhejiang Province, Chin...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IWA Publishing
2023-10-01
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| Series: | Journal of Water and Health |
| Subjects: | |
| Online Access: | http://jwh.iwaponline.com/content/21/10/1503 |
| _version_ | 1827765138372952064 |
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| author | Tao Liu Min Zhang Dong Wen Yun Fu Jianhua Yao Guojian Shao Zhang Peng |
| author_facet | Tao Liu Min Zhang Dong Wen Yun Fu Jianhua Yao Guojian Shao Zhang Peng |
| author_sort | Tao Liu |
| collection | DOAJ |
| description | Some disinfection by-products (DBPs) in drinking water present a potential safety concern. This study focuses on the elements influencing DBPs formation. A total of 120 water samples were collected from 10 different drinking water facilities spanning 5 counties within Huzhou, Zhejiang Province, China. Concentrations of trihalomethanes (THMs) and haloacetic acids (HAAs) were observed to be 14.5 and 27.4 μg/L, respectively, constituting 34 and 64% of the total DBPs. Seasonal fluctuations demonstrated that HAAs, THMs, halonitromethanes (HNMs), and haloacetonitriles (HANs) followed a similar pattern with higher levels in summer or autumn compared to spring. Importantly, the concentrations of HAAs and THMs were markedly higher in Taihu-sourced water compared to other sources. Geographically, Nanxun exhibited the highest levels of total DBPs, HAAs, and THMs, while Deqing and Changxing demonstrated significantly lower levels. Correlation studies between water quality parameters and DBPs revealed that factors such as chloride content, temperature, and residual chlorine positively influenced DBPs formation, whereas turbidity negatively affected it. Principal component analysis suggested similar formation processes for HANs, haloketones (HKs), HNMs, and THMs. Factors such as temperature, chemical oxygen demand (COD), and residual chlorine were identified as significant contributors to the prevalence of HAAs.
HIGHLIGHTS
Twenty classes of DBPs and eight kinds of water quality parameters were monitored.;
The impacts of water source and season were different between DBP species.;
The temperature and COD played important roles in HAAs occurrence.; |
| first_indexed | 2024-03-11T11:14:48Z |
| format | Article |
| id | doaj.art-cacd24afd0ad4cdf9235abb044270823 |
| institution | Directory Open Access Journal |
| issn | 1477-8920 1996-7829 |
| language | English |
| last_indexed | 2024-03-11T11:14:48Z |
| publishDate | 2023-10-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Journal of Water and Health |
| spelling | doaj.art-cacd24afd0ad4cdf9235abb0442708232023-11-11T06:59:25ZengIWA PublishingJournal of Water and Health1477-89201996-78292023-10-0121101503151710.2166/wh.2023.149149Temporal and spatial variations of disinfection by-products in South Taihu's drinking water, Zhejiang Province, ChinaTao Liu0Min Zhang1Dong Wen2Yun Fu3Jianhua Yao4Guojian Shao5Zhang Peng6 Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang Province 313000, China Hunan Provincial Center for Disease Control and Prevention, Changsha, Hunan Province 410005, China Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang Province 313000, China Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang Province 313000, China Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang Province 313000, China Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang Province 313000, China Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang Province 313000, China Some disinfection by-products (DBPs) in drinking water present a potential safety concern. This study focuses on the elements influencing DBPs formation. A total of 120 water samples were collected from 10 different drinking water facilities spanning 5 counties within Huzhou, Zhejiang Province, China. Concentrations of trihalomethanes (THMs) and haloacetic acids (HAAs) were observed to be 14.5 and 27.4 μg/L, respectively, constituting 34 and 64% of the total DBPs. Seasonal fluctuations demonstrated that HAAs, THMs, halonitromethanes (HNMs), and haloacetonitriles (HANs) followed a similar pattern with higher levels in summer or autumn compared to spring. Importantly, the concentrations of HAAs and THMs were markedly higher in Taihu-sourced water compared to other sources. Geographically, Nanxun exhibited the highest levels of total DBPs, HAAs, and THMs, while Deqing and Changxing demonstrated significantly lower levels. Correlation studies between water quality parameters and DBPs revealed that factors such as chloride content, temperature, and residual chlorine positively influenced DBPs formation, whereas turbidity negatively affected it. Principal component analysis suggested similar formation processes for HANs, haloketones (HKs), HNMs, and THMs. Factors such as temperature, chemical oxygen demand (COD), and residual chlorine were identified as significant contributors to the prevalence of HAAs. HIGHLIGHTS Twenty classes of DBPs and eight kinds of water quality parameters were monitored.; The impacts of water source and season were different between DBP species.; The temperature and COD played important roles in HAAs occurrence.;http://jwh.iwaponline.com/content/21/10/1503dbpsdrinking waterinfluencing factorstaihu |
| spellingShingle | Tao Liu Min Zhang Dong Wen Yun Fu Jianhua Yao Guojian Shao Zhang Peng Temporal and spatial variations of disinfection by-products in South Taihu's drinking water, Zhejiang Province, China Journal of Water and Health dbps drinking water influencing factors taihu |
| title | Temporal and spatial variations of disinfection by-products in South Taihu's drinking water, Zhejiang Province, China |
| title_full | Temporal and spatial variations of disinfection by-products in South Taihu's drinking water, Zhejiang Province, China |
| title_fullStr | Temporal and spatial variations of disinfection by-products in South Taihu's drinking water, Zhejiang Province, China |
| title_full_unstemmed | Temporal and spatial variations of disinfection by-products in South Taihu's drinking water, Zhejiang Province, China |
| title_short | Temporal and spatial variations of disinfection by-products in South Taihu's drinking water, Zhejiang Province, China |
| title_sort | temporal and spatial variations of disinfection by products in south taihu s drinking water zhejiang province china |
| topic | dbps drinking water influencing factors taihu |
| url | http://jwh.iwaponline.com/content/21/10/1503 |
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