Occurrence and formation potential of nitrosamines in river water and ground water along the Songhua River, China

Wang, Xiaohong; Liu, Zhongmou; Wang, Chi; Ying, Zhian; Wang, Fan; Yang, Wu

doi:10.1016/j.jes.2016.05.021

Cited by 23 publications

(10 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Increased N-nitrosamines could come from two sources. (1) Wastewater treatment plant effluents and industrial/domestic wastewaters containing N-nitrosamines may directly be discharged into the surface water ( Wang et al., 2016 ). (2) N-nitrosamines could be generated when the surface water received residual chlorine.…”

Section: Resultsmentioning

confidence: 99%

Spatial variation of dissolved organic nitrogen in Wuhan surface waters: Correlation with the occurrence of disinfection byproducts during the COVID-19 pandemic

et al. 2021

View full text Add to dashboard Cite

Intensified sanitization practices during the recent coronavirus disease-2019 (COVID-19) led to the release of chlorine-based disinfectants in surface water, potentially triggering the formation of disinfection byproducts (DBPs) in the presence of dissolved organic nitrogen (DON). Thus, a comprehensive investigation of DON's spatial distribution and its association with DBP occurrence in the surface water is urgently needed. In this study, a total of 51 water samples were collected from two rivers and four lakes in May 2020 in Wuhan to explore the regional variation of nitrogen (N) species, DON's compositional characteristics, and the three classes of DBP occurrence. In lakes, 53.0% to 86.3% of N existed as DON, with its concentration varying between 0.3–4.0 mg N/L. In contrast, NO 3 − -N was the dominant N species in rivers. Spectral analysis revealed that DON in the lakes contained higher humic and fulvic materials with higher A 254 , A 253 /A 203, SUVA 254 , and P III+IV /P I+II+V ratios, while rivers had higher levels of hydrophilic compounds. Trihalomethanes (THMs) were the most prevalent DBPs in the surface waters, followed by N-nitrosamines and haloacetonitriles (HANs). The levels of N-nitrosamines (23.1–97.4 ng/L) increased significantly after the outbreak of the COVID-19 pandemic. Excessive DON in the surface waters was responsible for the formation of N-nitrosamines. This study confirmed that the presence of DON in surface water could result in DBP formation, especially N-nitrosamines, when disinfectants were discharged into surface water during the COVID-19 pandemic.

show abstract

Section: Resultsmentioning

confidence: 99%

Spatial variation of dissolved organic nitrogen in Wuhan surface waters: Correlation with the occurrence of disinfection byproducts during the COVID-19 pandemic

et al. 2021

View full text Add to dashboard Cite

show abstract

“…NDMA concentrations were comparable to those in groundwater in the Songhua River (range: 0.6-18 ng L −1 , avg. 9.7 ng L −1 ), 33 the Jialu River (avg. 9.8 ng L −1 ) in China, 5 and in Tokyo, Japan (range: <0.5-5.2 ng L −1 , avg.…”

Section: Occurrence Of N-nitrosaminesmentioning

confidence: 99%

Impact of agricultural activities on the occurrence of N-nitrosamines in an aquatic environment

Chen,

Huang,

Chen

et al. 2024

Environ. Sci.: Processes Impacts

View full text Add to dashboard Cite

show abstract

“…The formation potential of disinfectant byproducts was assessed as in our previous work [24]. Briefly, 100 mL water was adjusted to pH 7.0 ± 0.2 with 0.1 M NaOH or H 2 SO 4 .…”

Section: Formation Potential Of Disinfectant Byproductsmentioning

confidence: 99%

Degradation of Micropollutants by UV–Chlorine Treatment in Reclaimed Water: pH Effects, Formation of Disinfectant Byproducts, and Toxicity Assay

Wang

Ying

Минг

et al. 2019

Water

Self Cite

View full text Add to dashboard Cite

The utilization of reclaimed water is a reliable and sustainable approach to enhance water supply in water-deficient cities. However, the presence of micro-organic pollutants (MPs) in reclaimed water has potential adverse effects on aquatic ecosystems and human health. In this study, we investigated the occurrence of 12 target MPs in the influent and reclaimed water collected from a local wastewater treatment plant, and the ultraviolet (UV)-chlorine process was applied to analyze its ability to remove MPs. The results showed that all 12 MPs were detected in both the influent and the reclaimed water, with the concentrations ranging from 25.5 to 238 ng/L and 8.6 to 42.5 ng/L, respectively. Over 52% of all the target MPs were readily degraded by the UV-chlorine process, and the removal efficiency was 7.7% to 64.2% higher than the corresponding removal efficiency by chlorination or UV irradiation only. The degradation efficiency increased with the increasing initial chlorine concentration. The pH value had a slight influence on the MP degradation and exhibited different trends for different MPs. The formation of known disinfectant byproducts (DBPs) during the UV-chlorine process was 33.8% to 68.4% of that in the chlorination process, but the DBPs' formation potentials were 1.3 to 2.2 times higher. The toxicity assay indicated that UV-chlorine can effectively reduce the toxicity of reclaimed water.

show abstract

Occurrence and formation potential of nitrosamines in river water and ground water along the Songhua River, China

Cited by 23 publications

References 17 publications

Spatial variation of dissolved organic nitrogen in Wuhan surface waters: Correlation with the occurrence of disinfection byproducts during the COVID-19 pandemic

Spatial variation of dissolved organic nitrogen in Wuhan surface waters: Correlation with the occurrence of disinfection byproducts during the COVID-19 pandemic

Impact of agricultural activities on the occurrence of N-nitrosamines in an aquatic environment

Degradation of Micropollutants by UV–Chlorine Treatment in Reclaimed Water: pH Effects, Formation of Disinfectant Byproducts, and Toxicity Assay

Contact Info

Product

Resources

About