Article
Engineering, Environmental
Ping Jiang, Junlang Qiu, Yanpeng Gao, Mihaela Stefan, Xing-Fang Li
Summary: A non-targeted analysis strategy combined with computational toxicity assessment was developed in this study to identify organic transformation products of the micropollutant 2-mercaptobenzothiazole during UV treatment. A total of 22 organic transformation products were successfully identified, with nine new structures being determined for the first time. Computational assessments showed that the estrogenic activity of these new transformation products is higher than the toxic contaminant 2-hydroxybenzothiazole.
Article
Engineering, Environmental
Yan Liu, Jianfa Gao, Qingyao Zhu, Xi Zhou, Wenhai Chu, Jingxiong Huang, Changkun Liu, Bo Yang, Mengting Yang
Summary: This study reports the effective degradation of halogenated aromatic disinfection byproducts (DBPs) by ZVI/Cu and establishes a novel mechanism-based quantitative structure-activity relationship model to predict degradation rate constants. The study found that ZVI/Cu can effectively degrade not only aliphatic DBPs but also new emerging aromatic DBPs formed in chlorinated and chloraminated drinking water. A quantitative structure-activity relationship model was developed to predict the degradation rate constants of other aromatic DBPs, and optimized descriptors were identified.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Kirsten Yeung, Nathan Moore, Jianxian Sun, Lizbeth Taylor-Edmonds, Susan Andrews, Ronald Hofmann, Hui Peng
Summary: We propose a new acellular analytical strategy, the 'Thiol Reactome', toidentify thiol-reactive DBPs. This method was applied to chemically disinfected/oxidized waters, and 181 tentative DBP-GSH reaction products were detected. Nitrogenous-DBPs (11) and unsaturated carbonyls (4) were the predominant compound classes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yuru Chen, Qiuhong Liang, Wenjie Liang, Wenlong Li, Yan Liu, Kexin Guo, Bo Yang, Xu Zhao, Mengting Yang
Summary: A recent study found that aromatic DBP fractions are the main contributors to the toxicity of chlorinated drinking water. However, the key drivers of toxicity based on the formation of aliphatic and aromatic DBPs in drinking water have not been comprehensively evaluated. This study explored the occurrence of various aliphatic and aromatic DBPs in drinking water samples from a Chinese megacity. The findings suggest that haloacetonitriles and halonitrophenols are the main toxicity drivers among the measured aliphatic and aromatic DBPs, respectively.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Jiadong Peng, Huang Huang, Yu Zhong, Ran Yin, Qianyuan Wu, Chii Shang, Xin Yang
Summary: This study investigated the transformation of dissolved organic matter (DOM) and the removal of nitrogenous disinfection byproduct (N-DBP) precursors during different types of biological wastewater treatment processes. The results showed that DOM fractions with different molecular weights exhibited varying degrees of biodegradability, with smaller molecules being more difficult to remove. Complete nitrification was found to be beneficial in removing small amino sugar-like and protein-like molecules, but the removal of haloacetonitrile (HAN) precursors was challenging. The abundance of low-molecular-size protein-like substances was significantly correlated with the formation potential of halonitromethane (HNM), N-nitrosamine (NA), and total N-nitrosamine (TONO) in post-chloramination.
Article
Engineering, Environmental
Yao Lu, Jun-Kun Liang, Hai-Yan Wang, Chao Wang, Zhi-Min Song, Qing Hu, Qian-Yuan Wu
Summary: This study identified high-toxicity chlorinated disinfection byproducts (Cl-DBPs) formed during chlorination, with a relatively high probability of occurrence in drinking water, highlighting the need for attention.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Jiaqi Liu, Christie M. Sayes, Virender K. Sharma, Yu Li, Xiangru Zhang
Summary: The study investigated the use of lemon ascorbic acid to decrease Halo-DBPs in tap water by boiling after adding lemon. Results show that this method significantly reduced the concentration of harmful compounds and cytotoxicity in the water, offering a potential strategy to improve water safety.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Review
Environmental Sciences
Carlos Castillo-Zacarias, Mario E. Barocio, Enrique Hidalgo-Vazquez, Juan Eduardo Sosa-Hernandez, Lizeth Parra-Arroyo, Itzel Y. Lopez-Pacheco, Damia Barcelo, Hafiz N. M. Iqbal, Roberto Parra-Saldivar
Summary: Antidepressants contaminate urban and non-urban water bodies, leading to bioaccumulation in aquatic animals. This contamination is expected to increase due to rising depression and anxiety levels during the COVID-19 pandemic.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Junjie Wang, Meiqi Zhang, Shaoyang Hu, Qiming Xian, Haoran Chen, Tingting Gong
Summary: This study examined the occurrence of aliphatic and aromatic halogenated disinfection byproducts (DBPs) in swimming pool water and their cytotoxicity. The results showed the presence of various DBPs in the water, including some that have not been detected before. The average concentrations of aliphatic DBPs were higher than those of aromatic DBPs. The contributions of different DBP categories to cytotoxicity varied, with aliphatic DBPs having the highest contribution.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Yanpeng Gao, Junlang Qiu, Yuemeng Ji, Nicholas J. P. Wawryk, Taicheng An, Xing-Fang Li
Summary: This study used computational modeling to investigate the iodination mechanism of aromatic contaminants. It was found that the formation of hydroxylated tyrosylglycine is favored over iodinated tyrosylglycine, but experimental results detected the presence of iodinated tyrosylglycine instead. Further research revealed the thermodynamic role of the reactive iodine species H2OI+ in the formation of aromatic iodinated disinfection byproducts.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Shaoyang Hu, Han Yeong Kaw, Lizhong Zhu, Wei Wang
Summary: This study successfully identified a new group of nitrogenous aromatic halogenated disinfection byproducts, halophenylacetamides (HPAcAms), in laboratory experiments and realistic drinking water for the first time. The study investigated the formation mechanism, occurrence frequencies, and concentrations of HPAcAms in authentic drinking water, and developed a quantitative structure-activity relationship (QSAR) model based on cytotoxicity data. The results showed that HPAcAms could form from phenylalanine during chlorination and their yields were influenced by various factors. Multiple HPAcAms were detected in authentic drinking water samples and showed higher cytotoxicity compared to the most abundant aliphatic haloacetamide DBP.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Maria Ines Roque, Joao Gomes, Igor Reva, Artur J. M. Valente, Nuno E. E. Simoes, Paula V. V. Morais, Luisa Duraes, Rui C. C. Martins
Summary: Ensuring drinking water quality is crucial for public health, especially in the context of increasing industrialization. Disinfection is a key process, but it leads to the formation of unwanted disinfection byproducts (DBPs) that negatively impact human health. Stricter regulations and techniques for DBP removal have been developed, but further research is needed to monitor and control these contaminants in water distribution systems.
Article
Engineering, Environmental
Shuang Li, Jiping Ma, Gege Wu, Jinhua Li, Xiaoyan Wang, Lingxin Chen
Summary: A simple method based on magnetic solid-phase extraction was developed for the simultaneous extraction of multiple DBPs in water samples with high sensitivity and good precision, applicable to real water samples. Additionally, the method demonstrated rapidity and efficiency, serving as an ideal alternative for sample pretreatment in determining trace DBPs in complex matrices.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Wanxin Li, Xiangru Zhang, Jiarui Han
Summary: A new reaction pathway in the chlorination of acetaminophen, involving oxidative coupling reactions via acetaminophen radicals, was investigated in this study. Over 20 polymeric products, some similar to polychlorinated biphenyls, were detected in chlorinated acetaminophen samples using advanced analytical techniques. Quantum chemical calculations revealed the bonding processes and kinetics of both C-C and C-O bonding products. This study suggests that chlorination may cause both degradation and upgradation of phenolic compounds or contaminants.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Editorial Material
Environmental Sciences
Qi Zheng, Lindsay K. Jmaiff Blackstock, Wenchao Deng, Hailin Wang, X. Chris Le, Xing-Fang Li
JOURNAL OF ENVIRONMENTAL SCIENCES
(2017)
Article
Engineering, Environmental
Lindsay K. Jmaiff Blackstock, Wei Wang, Sai Vemula, Benjamin T. Jaeger, Xing-Fang Li
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2017)
Review
Chemistry, Analytical
Ping Jiang, Lindsay K. Jmaiff Blackstock, Nicholas J. P. Wawryk, Guang Huang, Xing-Fang Li
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2019)
Article
Biochemical Research Methods
Caley B. Craven, Cole W. Joyce, Charles A. Lucy
JOURNAL OF CHROMATOGRAPHY A
(2019)
Article
Engineering, Environmental
Guang Huang, Lindsay K. Jmaiff Blackstock, Ping Jiang, Zhongshan Liu, Xiufen Lu, Xing-Fang Li
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Chemistry, Analytical
Zhongshan Liu, Caley B. Craven, Guang Huang, Ping Jiang, Di Wu, Xing-Fang Li
ANALYTICAL CHEMISTRY
(2019)
Review
Environmental Sciences
Caley B. Craven, Nicholas Wawryk, Ping Jiang, Zhongshan Liu, Xing-Fang Li
JOURNAL OF ENVIRONMENTAL SCIENCES
(2019)
Review
Chemistry, Analytical
Yanan Tang, Caley B. Craven, Nicholas J. P. Wawryk, Junlang Qiu, Feng Li, Xing-Fang Li
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2020)
Review
Chemistry, Multidisciplinary
Caley B. Craven, Lindsay K. Jmaiff Blackstock, Jiaojiao Xie, Jinhua Li, Chun-Gang Yuan, Xing-Fang Li
Summary: Advancements in analytical technology have led to discoveries in water research, particularly in the identification and determination of toxic compounds like disinfection byproducts in drinking water. Current focus is on identifying unknown DBPs with toxicological relevance.
CANADIAN JOURNAL OF CHEMISTRY
(2021)
Article
Engineering, Environmental
Nicholas J. P. Wawryk, Guang Huang, Caley Craven, Junlang Qiu, Lindsay K. Jmaiff Blackstock, Xing-Fang Li
Summary: The study found that APM and sweeteners containing APM can react with residual chlorine in tap water, resulting in the formation of eight new disinfection byproducts (DBPs) and 2,6-dichloro-1,4-benzoquinone (DCBQ). These DBPs were also detected in tea containing APM. These results suggest that APM sweetened beverages could be a potential source of unintended exposure to emerging DBPs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Environmental Sciences
Lindsay K. Jmaiff Blackstock, Nicholas J. P. Wawryk, Ping Jiang, Steve E. Hrudey, Xing-Fang Li
CURRENT OPINION IN ENVIRONMENTAL SCIENCE & HEALTH
(2019)
Article
Chemistry, Analytical
Charles A. Lucy, Caley B. Craven, Claudia Seidl, Dwight R. Stoll
LC GC NORTH AMERICA
(2018)
Article
Chemistry, Analytical
Ping Jiang, Guang Huang, Lindsay K. Jmaiff Blackstock, Jianye Zhang, Xing-Fang Wi
ANALYTICAL CHEMISTRY
(2017)