Tracing anthropogenic contamination in the Pearl River estuarine and marine environment of South China Sea using sterols and other organic molecular markers

Peng, Xianzhi; Zhang, Gan; Mai, Bi-Xian; Hu, Jianfang; Li, Kechang; Wang, Zhendi

doi:10.1016/j.marpolbul.2005.02.031

Cited by 89 publications

(36 citation statements)

References 25 publications

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“…In this study, a slightly modified liquid-liquid extraction method (Nash et al 2005;Peng et al 2005) was used to analyze the fecal sterol and bile acid concentrations in runoff samples.…”

Section: Runoffmentioning

confidence: 99%

Fecal Sterol and Bile Acid Biomarkers: Runoff Concentrations in Animal Waste-Amended Pastures

Tyagi

Edwards

Coyne

2008

Water Air Soil Pollut

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Nonpoint source pollution is the leading remaining cause of water quality problems. The extent of NPS pollution is often more difficult or expensive to monitor at the point(s) of origin, as compared to monitoring of point sources. This study evaluated the hypothesis that animal manure (chicken, cow, horse, and pig) applied to pasture contribute fecal sterols and bile acids to runoff. The study also assessed the potential benefit of fecal sterols and bile acids as biomarkers in distinguishing fecal pollution and its sources. Fecal sterol and bile acid concentrations were determined in flow-weighted composite runoff samples collected from 2.4×6.1 m plots (n=3) amended with manure. Runoff was generated from simulated rainfall (152 mm.h −1 ). Runoff samples from manure-amended plots showed high concentrations of fecal sterol (ranged from 13±1 to 1,287±183) and bile acid (ranged from 24±1 to 2,251±248) biomarkers. The profiles of fecal sterols and bile acids in runoff samples were similar to those of fresh manure for all selected animals. For runoff and fresh manure, chenodeoxycholic acid, deoxycholic acid, epicoprostanol, and hyodeoxycholic acid were consistent biomarkers for chicken, cow, horse, and pig, respectively, suggesting that sterols and bile acids can be used to identify sources and occurrence of fecal matter in water and sediments.

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“…In this study, a slightly modified liquid-liquid extraction method (Nash et al 2005;Peng et al 2005) was used to analyze the fecal sterol and bile acid concentrations in runoff samples.…”

Section: Runoffmentioning

confidence: 99%

Fecal Sterol and Bile Acid Biomarkers: Runoff Concentrations in Animal Waste-Amended Pastures

Tyagi

Edwards

Coyne

2008

Water Air Soil Pollut

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“…They are persistent in sediments, easily associate with particulate material and sediments, and present notable resistance to anaerobic degradation. Sewage pollution derived from densely populated areas around ports has been evaluated more recently by high concentrations of faecal sterols (PENG et al, 2005;MARTINS et al, 2010;2011a;ALBANO et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Integrated assessment of contaminants and monitoring of an urbanized temperate harbor (Montevideo, Uruguay): a 12-year comparison

et al. 2015

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Integrated assessment of contaminants and monitoring of an urbanized temperate harbor (Montevideo, Uruguay): a 12-year comparisonSituated opposite the Freshwater Front, Montevideo city with its more than 1.5 million inhabitants encircles Montevideo Bay, where one of the most active and polluted harbors in South America is located. Faecal sterols, trace metals, organochlorine compounds and petroleum derivatives in the sediments of Montevideo Harbor were evaluated and their spatial distribution inside the harbor as well as in the input of two main tributary streams analyzed. Specifically for the harbor sites, a temporal comparison of metal and hydrocarbons was made with previous measurements taken 12 years ago. Clear changes were observed at these sites. The concentration of metals such as Pb, Cr and Zn have diminished, while aliphatic hydrocarbons have increased their values at almost all of the stations studied. Differences were observed between summer and winter suggesting sedimentation, input or hydrodynamic changes in the area. These results help one to understand the present situation and develop the management measures needed to improve the environmental quality of the harbor and bay. AbstrAct

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“…For I1U3O and I1PO, nC 16 was dominant, and there was an envelope ranging from nC 14 to nC 22 distinctive of mid-range distillates; the same distribution was discovered in groundwater near a diesel tank (Riccardi et al, 2008). Multiple UCM humps can be discovered in samples containing petroleum hydrocarbons from multiple sources (Peng et al, 2005). For I3-1M, I6-1M, I1U1O, I1U2O, I3PO, I4UO, I5PO, and I6UO, bimodal UCM from nC 14 to nC 26 and from nC 27 to nC 39 was discovered, which was characteristic of both light and heavy petroleum fraction contamination (Colombo et al, 1989;Mzoughi and Chouba, 2011).…”

Section: Source Apportionment and Biodegradation Of Aliphatic Hydrocamentioning

confidence: 74%

Petroleum contamination in groundwater/air and its effects on farmland soil in the outskirt of an industrial city in China

Zhang¹,

Dai²,

Chen³

et al. 2012

Journal of Geochemical Exploration

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Tracing anthropogenic contamination in the Pearl River estuarine and marine environment of South China Sea using sterols and other organic molecular markers

Cited by 89 publications

References 25 publications

Fecal Sterol and Bile Acid Biomarkers: Runoff Concentrations in Animal Waste-Amended Pastures

Fecal Sterol and Bile Acid Biomarkers: Runoff Concentrations in Animal Waste-Amended Pastures

Integrated assessment of contaminants and monitoring of an urbanized temperate harbor (Montevideo, Uruguay): a 12-year comparison

Petroleum contamination in groundwater/air and its effects on farmland soil in the outskirt of an industrial city in China

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