Sterol ratios as a tool for sewage pollution assessment of river sediments in Serbia

Bujagić, Ivana Matić; Grujić, Svetlana; Jauković, Zorica; Laušević, Mila

doi:10.1016/j.envpol.2015.12.036

Cited by 46 publications

(20 citation statements)

References 61 publications

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“…e concentrations of cholestanol ranged from 0.46 μg g −1 to 2.00 μg g −1 , and the average value of cholestanol was 0.90 μg g −1 . Coprostanol was widely distributed in sediments of the reservoir, ranging from 0.11 μg g −1 to 1.24 μg g −1 , with the average concentration of 0.51 μg g −1 , which was similar to the concentrations of coprostanol in sediments of rivers of Serbia and Ulungur Lake in northern Xinjiang [39,40]. Generally, the concentration of coprostanol has been used to assess the sewage pollution level, and the maximum threshold of sewage contamination used in previous studies was 0.7 μg g −1 [20,30].…”

Section: Journal Of Chemistrysupporting

confidence: 55%

“…e significant correlation between fecal sterols and plant sterols has also been reported by other studies [39,48]. One reason for this phenomenon may be because plant sterols, such as sitosterol and stigmasterol, are also derived from municipal sewage besides their terrestrial source [40,48]. Also, discharge of domestic sewage may lead to phytoplankton growth in the reservoir which could increase the amount of phytosterols, particularly campesterol [48].…”

Section: Source Discrimination Using Principal Componentmentioning

confidence: 63%

“…Among the plant sterols, the proportion of campesterol was minor, and the concentration variation was not significant in the entire Guanting Reservoir. It has been proposed that phytosterols can be derived from municipal pollution besides their terrestrial source [40]. Hence, high proportions of phytosterols in the total sterols in the Guanting Reservoir may be partially due to sewage input.…”

Section: Spatial Distribution Of Sterols According Tomentioning

confidence: 99%

“…Besides individual sterol contents, sterol ratio parameters are widely used to more robustly evaluate the sewage contamination [30,40,42]. In this study, five sterol ratio parameters were used, including coprostanol/cholestanol, Journal of Chemistry 5 coprostanol/(cholesterol + cholestanol), epicoprostanol/ coprostanol, coprostanol/(coprostanol + cholestanol), and coprostanol/cholesterol.…”

Section: Pollution Evaluation Using Sterol Ratiosmentioning

confidence: 99%

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Distributions and Sources of Sedimentary Sterols as well as Their Indications of Sewage Contamination in the Guanting Reservoir, Beijing

Wen

Bai

Zhang

et al. 2020

Journal of Chemistry

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In this study, domestic sewage contamination in the Guanting Reservoir, one of the major water source reservoirs of Beijing, was examined using sterols as tracing molecular markers. Nineteen sediment samples in seven cross-sections in the Guanting Reservoir were collected, extracted, and analyzed by gas chromatography-mass spectrometry (GC-MS). Seven different sterols were identified and quantified from the surface sediment samples in the Guanting Reservoir. The total sterols in sediments of the reservoir ranged from 2.78 μg g−1 to 40.31 μg g−1 with the average concentration of 13.53 μg g−1. Concentrations of fecal sterols, coprostanol and epicoprostanol in the Guishui River reservoir area were generally higher than in the Yongding River reservoir area. The average concentrations of coprostanol and epicoprostanol in the Yongding River reservoir area were 0.41 μg g−1 and 0.34 μg g−1, respectively. The average concentrations of coprostanol and epicoprostanol in the Guishui River reservoir area were 0.72 μg g−1 and 0.70 μg g−1, respectively. Ratios of sterols indicated higher sewage pollution in regions close to river mouths and reservoir banks. Principal component analysis (PCA) indicated three distinct sources of sterols from domestic sewage, phytoplankton, and terrestrial higher plants. This article identified the current situation of sewage contamination in sediments of the Guanting Reservoir, which could provide important references for further implementation of pollution control and basin management in the region.

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Section: Journal Of Chemistrysupporting

confidence: 55%

Section: Source Discrimination Using Principal Componentmentioning

confidence: 63%

Section: Spatial Distribution Of Sterols According Tomentioning

confidence: 99%

Section: Pollution Evaluation Using Sterol Ratiosmentioning

confidence: 99%

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Distributions and Sources of Sedimentary Sterols as well as Their Indications of Sewage Contamination in the Guanting Reservoir, Beijing

Wen

Bai

Zhang

et al. 2020

Journal of Chemistry

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“…We measured coprostanol (5β) and cholestanol (5α) and then calculated the sterol ratio (5β/(5β + 5α)). The sterol ratio was used as an indicator to evaluate fecal pollution at three levels: no pollution, uncertain, and certain pollution 30 . This suggested methodology has not been tested previously.…”

Section: Discussionmentioning

confidence: 99%

Spatiotemporal variation of nitrate concentrations in soil and groundwater of an intensely polluted agricultural area

Nakagawa

Amano

Persson

et al. 2021

Sci Rep

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Nitrate pollution in groundwater is a serious problem in many parts of the world. However, due to the diffuse and common spatially over-lapping character of potential several non-point pollution sources, it is often difficult to distinguish main nitrate sources responsible for the pollution. For this purpose, we present a novel methodology applied to groundwater for an intensely polluted area. Groundwater samples were collected monthly from April 2017 to March 2018 in Shimabara City, Nagasaki, Japan. Soil samples were collected seasonally at soil surface and 50 cm depth at 10 locations during the same period. Sequential extraction by water and extract agents was performed using calcium phosphate for anions and strontium chloride for cations. Mean nitrate concentration in groundwater close to a livestock waste disposal site (hereinafter called “LWDS”) was 14.2 mg L−1, which is exceeding Japanese drinking water standards (10 mg L−1). We used coprostanol concentration, which is a fecal pollution indicator, to identify pollution sources related to livestock waste. For this purpose, we measured coprostanol (5β) and cholestanol (5α) and then calculated the sterol ratio (5β/(5β + 5α)). The ratios for three groundwater sampling sites were 0.28, 0.26, and 0.10, respectively. The sterol ratios indicated no pollution (< 0.3). However, the detection of coprostanol originating from animal and human waste showed that groundwater was clearly affected by this pollution source. Nitrate levels in the soil were relatively high in samples collected close to the LWDS and coprostanol contents were affected by livestock waste. Soil and groundwater nitrate concentrations displayed a complex but strong relationship. Nitrate contents were shown to be transported downstream from source areas in both soil and groundwater.

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Sampling, Characterization, and Monitoring

Achhoda,

Halder,

Adagadda

et al. 2023

Microconstituents in the Environment

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Sterol ratios as a tool for sewage pollution assessment of river sediments in Serbia

Cited by 46 publications

References 61 publications

Distributions and Sources of Sedimentary Sterols as well as Their Indications of Sewage Contamination in the Guanting Reservoir, Beijing

Distributions and Sources of Sedimentary Sterols as well as Their Indications of Sewage Contamination in the Guanting Reservoir, Beijing

Spatiotemporal variation of nitrate concentrations in soil and groundwater of an intensely polluted agricultural area

Sampling, Characterization, and Monitoring

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