Sedimentary coprostanol in Kaohsiung Harbour and the Tan-Shui Estuary, Taiwan

Jeng, Woei‐Lih; Han, Bor-Cheng

doi:10.1016/0025-326x(94)90523-1

Cited by 94 publications

(48 citation statements)

References 26 publications

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“…The application of the index produces a value of 1 or less which indicates the relative degree of pollution (Table 7). Studies by Jeng and Han (1994) and Fattore et al (1996) confirmed values of >0.7 as indicative of urban sewage pollution and concluded that this ratio is a very useful tool for the elucidation of sources of sterol input to recent sediments. The equation for deriving the index is stated as:…”

Section: Resultsmentioning

confidence: 86%

“…A significant number of authors (Hatcher and McGillivary, 1979;Saliot and Tusseau, 1984;Venkatesan and Kaplan, 1990;Grimault et al, 1990;Tian et al, 1992;Jeng and Han, 1994;Quemeneur and Marty, 1994;Takada et al, 1994;Chalaux et al, 1995;Li et al, 1995;Fattore et al, 1996;Nichols et al, 1996;Chan et al, 1998) have therefore suggested that appropriate independent ratios are a better instrument for comparison and trend identification purposes (i.e. a normaliser for grain surface area effects).…”

Section: Resultsmentioning

confidence: 99%

“…Reported values of this ratio typically representative of a human source were 1.55 to 6.00 (Fattore et al, 1996;Venkatesan and Kaplan, 1990;Jeng and Han, 1994), although values as high as 13.24 (inside Venice city boundary) have been reported (Fattore et al, 1996). Values obtained for the c/e ratio in Invergowrie Bay (Table 7) fell within reported ranges confirming a human source of faecal sterols (April range=2.22-15.60, standard deviation=3.05; June range=1.63-6.46, standard deviation=1.40; July range=1.00-12.89, standard deviation=2.87; August range=1.12-9.81, standard deviation=2.40).…”

Section: Resultsmentioning

confidence: 99%

“…Elevated concentrations in deep basins are associated with advected fine-grained sediments, which tend to adsorb to organic carbon (Venkatesan and Kaplan, 1990;Venkatesan et al, 2003). Jeng and Han (1994) showed a >91% association between coprostanol and particulates in effluent.…”

Section: Introductionmentioning

confidence: 99%

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Faecal sterols as indicators of sewage contamination in estuarine sediments of the Tay Estuary, Scotland: an extended baseline survey

Reeves

Patton

2005

Hydrol. Earth Syst. Sci.

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Abstract. Sterol ratios are used to identify sources, occurrence and partitioning of faecal matter in sediments of the Tay Estuary, Scotland. The 5β/(5α+5β) ratio is used to discriminate between sewage and biogenic sterol sources by comparing the concentrations of coprostanols to cholesterol plus coprostanols. This index shows unambiguous sewage pollution in the Invergowrie Bay area (values >0.7). The coprostanol/epicoprostanol index is used to differentiate between human and non-human faecal inputs. Ratios confirmed the primary source as human-derived faecal material. The coprostanol/cholesterol ratio was calculated in order to elucidate the contribution of different biogenic sources to the sedimentary sterol budget. Ratios of >1 clearly indicate faecal sterol sources. Invergowrie Bay displayed no sterol signature other than sewage. A biogenic source of cholesterol influenced total sterol concentrations upstream of the City of Dundee. Attention is directed to the potential role of density fronts in compartmentalization of faecal material in bottom sediments.

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Section: Resultsmentioning

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Faecal sterols as indicators of sewage contamination in estuarine sediments of the Tay Estuary, Scotland: an extended baseline survey

Reeves

Patton

2005

Hydrol. Earth Syst. Sci.

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“…Coprostanol (5β-cholestan-3β-ol), a faecal sterol produced in the digestive system of higher invertebrates by the microbial reduction of cholesterol (McCalley et al, 1981), has been successfully used as a marker for the assessment of sewage contamination in a variety of aquatic environments (Huang & Meinschein, 1979;Brown & Wade, 1984;Readman et al, 1986;Venkatesan & Kaplan, 1990;Sherwin et al, 1993;Jeng & Han, 1994;Chalaux et al, 1995;Mudge & Bebianno, 1997;Jaffé et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

A comparison between faecal sterols and coliform counts in the investigation of sewage contamination in sediments

Costa

Carreira

2005

Braz. j. oceanogr.

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nine sediment samples (0-2 cm) were collected from Botafogo Cove (southwestern part of Guanabara Bay) in order to compare the use of chemical (coprostanol) and biological markers (E. coli and total coliforms) in identifying faecal contamination. The values found (organic carbon -6.0 to 64.8 mg g -1 ; coprostanol -1.4 to 105 µg g -1 ; E. coli -< 30 to 2400 NMP/10g and total coliforms -40 to 9300 NMP/10g) were similar to or even higher than those observed in other contaminated areas of Guanabara Bay. In stations close to the shoreline, both coprostanol concentration and bacteria count confirmed that domestic sewage had accumulated in the cove. Coprostanol concentrations were still relatively high in the stations furthest from contamination sources, although faecal material represented a smaller fraction of the total organic carbon originated by dilution in waters containing algae. Reduction was proportionately higher by virtue of the use of the colimetric assessment method. This result may be associated with the effect that environmental variables (light, salinity, temperature) may have on the survival of bacteria during transport and deposition of sewage particles. Consequently, based on these results, coprostanol may be considered the better indicator of the faecal contamination level in Botafogo Cove sediments. R E S U M OEm setembro de 2002, foram coletadas nove amostras de sedimento superficial (0-2 cm) na Enseada de Botafogo (sudoeste da Baía de Guanabara/RJ), a fim de comparar o uso de marcadores químicos (coprostanol) e biológicos (E. coli e coliformes totais) na identificação da contaminação fecal da região. Os resultados obtidos (carbono orgânico -6,0 to 64,8 mg g -1 ; coprostanol -1,4 to 105 µg g -1 ; E. coli -< 30 to 2400 NMP/10g e coliformes totais -40 to 9300 NMP/10g) foram iguais ou maiores aos observados em outras áreas contaminadas da Baía de Guanabara. Nas estações próximas à linha de costa, as concentrações de coprostanol e as contagens das bactérias confirmaram que o esgoto doméstico se acumulou no sedimento da enseada. As concentrações de coprostanol se mantiveram altas nas estações distantes das fontes de contaminação, porém o material fecal representou uma menor fração do carbono orgânico. Nessas mesmas estações, redução na contagem de colimetria foi proporcionalmente mais alta, provavelmente pela baixa sobrevivência das bactérias devido ao efeito de luz, salinidade e temperatura. durante o transporte e deposição das partículas de esgoto. Portanto, baseando-se nos resultados obtidos, o coprostanol foi um indicador mais adequado da contaminação fecal nos sedimentos da Enseada de Botafogo.

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Partitioning and Behaviour of Different Forms of Phosphorus in the Tanshui Estuary and One of its Tributaries, Northern Taiwan

Fang

2000

Estuarine, Coastal and Shelf Science

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Sedimentary coprostanol in Kaohsiung Harbour and the Tan-Shui Estuary, Taiwan

Cited by 94 publications

References 26 publications

Faecal sterols as indicators of sewage contamination in estuarine sediments of the Tay Estuary, Scotland: an extended baseline survey

Faecal sterols as indicators of sewage contamination in estuarine sediments of the Tay Estuary, Scotland: an extended baseline survey

A comparison between faecal sterols and coliform counts in the investigation of sewage contamination in sediments

Partitioning and Behaviour of Different Forms of Phosphorus in the Tanshui Estuary and One of its Tributaries, Northern Taiwan

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