Photochemical behavior of dissolved organic matter in environmental surface waters: A review
As an important group of widespread organic substances in aquatic ecosystems, dissolved organic matter (DOM) plays an essential role in carbon recycling and transformation processes. The photochemical behavior of DOM is one of the main ways it participates in these processes, and it attracts extensi...
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| Language: | English |
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Elsevier
2024-12-01
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| Series: | Eco-Environment & Health |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772985024000516 |
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| author | Yichen Xu Yutong Zhang Longlong Qiu Ming Zhang Jiaojiao Yang Rong Ji Davide Vione Zhanghao Chen Cheng Gu |
| author_facet | Yichen Xu Yutong Zhang Longlong Qiu Ming Zhang Jiaojiao Yang Rong Ji Davide Vione Zhanghao Chen Cheng Gu |
| author_sort | Yichen Xu |
| collection | DOAJ |
| description | As an important group of widespread organic substances in aquatic ecosystems, dissolved organic matter (DOM) plays an essential role in carbon recycling and transformation processes. The photochemical behavior of DOM is one of the main ways it participates in these processes, and it attracts extensive attention. However, due to a variety of sources and water conditions, including both freshwater and seawater environments, the photochemical properties of DOM exhibit great differences. Nowadays, a large number of studies have focused on the generation process of reactive species (RS) from sunlit DOM, while little effort has been made so far to provide a comprehensive summary of the photochemical behavior of DOM, especially in fresh and saline aquatic ecosystems. In this review, we analyzed the research hotspot on DOM photochemistry over the last 30 years, summarizing the generation of photoreactive species in natural water environments containing DOM (both freshwater and seawater) and listing the main factors affecting the rate, yield, and species of RS photoproduction. Compared with freshwater, seawater has unique characteristics such as high pH value, high ionic strength, and halide ions, which affect the photogeneration of RS, the photoconversion process, as well as the reaction pathways of various environmental substances. In general, DOM-induced surface water photochemistry has important impacts on the environmental transformation and toxic effects of aquatic pollutants and can even contribute significantly to the Earth's carbon cycle, which would have potential implications for both human and ecological health. |
| format | Article |
| id | doaj-art-c6db9dfb5f8844138dde5112a17eecef |
| institution | Kabale University |
| issn | 2772-9850 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Eco-Environment & Health |
| spelling | doaj-art-c6db9dfb5f8844138dde5112a17eecef2024-12-07T08:35:06ZengElsevierEco-Environment & Health2772-98502024-12-0134529542Photochemical behavior of dissolved organic matter in environmental surface waters: A reviewYichen Xu0Yutong Zhang1Longlong Qiu2Ming Zhang3Jiaojiao Yang4Rong Ji5Davide Vione6Zhanghao Chen7Cheng Gu8State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, ChinaState Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, ChinaState Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, ChinaState Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China; Department of Environmental Engineering, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, ChinaQuanzhou Institute for Environmental Protection Industry, Nanjing University, Quanzhou 362000, ChinaState Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China; Quanzhou Institute for Environmental Protection Industry, Nanjing University, Quanzhou 362000, ChinaDepartment of Chemistry, University of Turin, Via Pietro Giuria 5, 10125, Torino, ItalyState Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China; Quanzhou Institute for Environmental Protection Industry, Nanjing University, Quanzhou 362000, China; Corresponding authors.State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China; Quanzhou Institute for Environmental Protection Industry, Nanjing University, Quanzhou 362000, China; Corresponding authors.As an important group of widespread organic substances in aquatic ecosystems, dissolved organic matter (DOM) plays an essential role in carbon recycling and transformation processes. The photochemical behavior of DOM is one of the main ways it participates in these processes, and it attracts extensive attention. However, due to a variety of sources and water conditions, including both freshwater and seawater environments, the photochemical properties of DOM exhibit great differences. Nowadays, a large number of studies have focused on the generation process of reactive species (RS) from sunlit DOM, while little effort has been made so far to provide a comprehensive summary of the photochemical behavior of DOM, especially in fresh and saline aquatic ecosystems. In this review, we analyzed the research hotspot on DOM photochemistry over the last 30 years, summarizing the generation of photoreactive species in natural water environments containing DOM (both freshwater and seawater) and listing the main factors affecting the rate, yield, and species of RS photoproduction. Compared with freshwater, seawater has unique characteristics such as high pH value, high ionic strength, and halide ions, which affect the photogeneration of RS, the photoconversion process, as well as the reaction pathways of various environmental substances. In general, DOM-induced surface water photochemistry has important impacts on the environmental transformation and toxic effects of aquatic pollutants and can even contribute significantly to the Earth's carbon cycle, which would have potential implications for both human and ecological health.http://www.sciencedirect.com/science/article/pii/S2772985024000516Dissolved organic matterPhotochemistryReactive speciesSurface watersEcological impact |
| spellingShingle | Yichen Xu Yutong Zhang Longlong Qiu Ming Zhang Jiaojiao Yang Rong Ji Davide Vione Zhanghao Chen Cheng Gu Photochemical behavior of dissolved organic matter in environmental surface waters: A review Eco-Environment & Health Dissolved organic matter Photochemistry Reactive species Surface waters Ecological impact |
| title | Photochemical behavior of dissolved organic matter in environmental surface waters: A review |
| title_full | Photochemical behavior of dissolved organic matter in environmental surface waters: A review |
| title_fullStr | Photochemical behavior of dissolved organic matter in environmental surface waters: A review |
| title_full_unstemmed | Photochemical behavior of dissolved organic matter in environmental surface waters: A review |
| title_short | Photochemical behavior of dissolved organic matter in environmental surface waters: A review |
| title_sort | photochemical behavior of dissolved organic matter in environmental surface waters a review |
| topic | Dissolved organic matter Photochemistry Reactive species Surface waters Ecological impact |
| url | http://www.sciencedirect.com/science/article/pii/S2772985024000516 |
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