Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.watres.2013.09.053
Title: Suitability of artificial sweeteners as indicators of raw wastewater contamination in surface water and groundwater
Authors: Tran, N.H.
Hu, J. 
Li, J.
Ong, S.L. 
Keywords: Artificial sweeteners
Groundwater
Sewer leakage
Surface water
Wastewater-associated indicators
Issue Date: 1-Jan-2014
Source: Tran, N.H., Hu, J., Li, J., Ong, S.L. (2014-01-01). Suitability of artificial sweeteners as indicators of raw wastewater contamination in surface water and groundwater. Water Research 48 (1) : 443-456. ScholarBank@NUS Repository. https://doi.org/10.1016/j.watres.2013.09.053
Abstract: There is no quantitative data on the occurrence of artificial sweeteners in the aquatic environment in Southeast Asian countries, particularly no information on their suitability as indicators of raw wastewater contamination on surface water and groundwater. This study provided the first quantitative information on the occurrence of artificial sweeteners in raw wastewater, surface water and groundwater in the urban catchment area in Singapore. Acesulfame, cyclamate, saccharin, and sucralose were ubiquitous in raw wastewater samples at concentrations in the range of ng/L-μg/L, while other sweeteners were not found or found only in a few of the raw wastewater samples. Residential and commercial effluents were demonstrated to be the two main sources of artificial sweeteners entering the municipal sewer systems. Relatively higher concentrations of the detected sweeteners were frequently found in surface waters at the sampling sites located in the residential/commercial areas. No significant difference in the concentrations of the detected sweeteners in surface water or groundwater was noted between wet and dry weather conditions (unpaired T-test, p> 0.05). Relatively higher concentrations and detection frequencies of acesulfame, cyclamate and saccharin in surface water samples were observed at the potentially impacted sampling sites, while these sweeteners were absent in most of the background surface water samples. Similarly, acesulfame, cyclamate, and saccharin were found in most groundwater samples at the monitoring well (GW6), which is located close to known leaking sewer segment; whereas these were absent in the background monitoring well, which is located in the catchment with no known wastewater sources. Taken together, the results suggest that acesulfame, cyclamate, and saccharin can be used as potential indicators of raw wastewater contamination in surface water and groundwater. © 2013 Elsevier Ltd.
Source Title: Water Research
URI: http://scholarbank.nus.edu.sg/handle/10635/59222
ISSN: 00431354
DOI: 10.1016/j.watres.2013.09.053
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

47
checked on Dec 6, 2017

WEB OF SCIENCETM
Citations

42
checked on Nov 21, 2017

Page view(s)

47
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.