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Statements

Subject Item
n2:RIV%2F60076658%3A12520%2F14%3A43886890%21RIV15-MSM-12520___
rdf:type
n13:Vysledek skos:Concept
rdfs:seeAlso
http://pubs.rsc.org/en/Content/ArticleLanding/2014/EM/c3em00219e#!divAbstract
dcterms:description
A simple model was set up to predict estrogen concentrations and endocrine disruption risk in the Yodo River, Japan. This catchment spans the conurbations of Kyoto and Osaka and is the main source of drinking water for Osaka City, Japan. From the river survey data (5 separate occasions between 2005 and 2008), a maximum of 32 g per day estrone (E1) load was observed in the most downstream site of the river. Predicted E1 concentrations were in reasonable agreement with the measurements taken at several points within the basin from a series of sampling campaigns. The predicted concentrations exceeded a net estradiol (E2) equivalent of 1 ng L-1 on only a few occasions, suggesting that only limited endocrine disruption phenomena in fish along the Yodo River is likely. The model was then used to examine the impact on estrogen concentrations and endocrine disruption of a number of different scenarios. It was found that in-river biodegradation had little effect on predicted concentrations and the outcome of endocrine disruption along the catchment. However, reduced sewage treatment removal, as can be experienced in winter in Japan, led to levels of 3.1 ng L-1 E2 equivalents being possible. The reduced river flow in winter in Japan exacerbates the situation as it offers less dilution. It was found that the application of the ozonation process as a tertiary sewage treatment in winter could prevent this higher risk endocrine disruption situation. A simple model was set up to predict estrogen concentrations and endocrine disruption risk in the Yodo River, Japan. This catchment spans the conurbations of Kyoto and Osaka and is the main source of drinking water for Osaka City, Japan. From the river survey data (5 separate occasions between 2005 and 2008), a maximum of 32 g per day estrone (E1) load was observed in the most downstream site of the river. Predicted E1 concentrations were in reasonable agreement with the measurements taken at several points within the basin from a series of sampling campaigns. The predicted concentrations exceeded a net estradiol (E2) equivalent of 1 ng L-1 on only a few occasions, suggesting that only limited endocrine disruption phenomena in fish along the Yodo River is likely. The model was then used to examine the impact on estrogen concentrations and endocrine disruption of a number of different scenarios. It was found that in-river biodegradation had little effect on predicted concentrations and the outcome of endocrine disruption along the catchment. However, reduced sewage treatment removal, as can be experienced in winter in Japan, led to levels of 3.1 ng L-1 E2 equivalents being possible. The reduced river flow in winter in Japan exacerbates the situation as it offers less dilution. It was found that the application of the ozonation process as a tertiary sewage treatment in winter could prevent this higher risk endocrine disruption situation.
dcterms:title
Elevated risk from estrogens in the Yodo River basin (Japan) in winter and ozonation as a management option Elevated risk from estrogens in the Yodo River basin (Japan) in winter and ozonation as a management option
skos:prefLabel
Elevated risk from estrogens in the Yodo River basin (Japan) in winter and ozonation as a management option Elevated risk from estrogens in the Yodo River basin (Japan) in winter and ozonation as a management option
skos:notation
RIV/60076658:12520/14:43886890!RIV15-MSM-12520___
n4:aktivita
n15:P
n4:aktivity
P(ED2.1.00/01.0024), P(EE2.3.30.0006)
n4:cisloPeriodika
2
n4:dodaniDat
n16:2015
n4:domaciTvurceVysledku
n20:2247003
n4:druhVysledku
n11:J
n4:duvernostUdaju
n19:S
n4:entitaPredkladatele
n18:predkladatel
n4:idSjednocenehoVysledku
14321
n4:idVysledku
RIV/60076658:12520/14:43886890
n4:jazykVysledku
n8:eng
n4:klicovaSlova
ethinylestradiol; fish; estradiol; english rivers; treatment plants; sexual disruption; steroid estrogens; endocrine disruption; waste-water; sewage-treatment works
n4:klicoveSlovo
n6:estradiol n6:waste-water n6:english%20rivers n6:ethinylestradiol n6:treatment%20plants n6:sewage-treatment%20works n6:sexual%20disruption n6:endocrine%20disruption n6:fish n6:steroid%20estrogens
n4:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n4:kontrolniKodProRIV
[58BDB0A48364]
n4:nazevZdroje
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
n4:obor
n9:CE
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
6
n4:projekt
n5:EE2.3.30.0006 n5:ED2.1.00%2F01.0024
n4:rokUplatneniVysledku
n16:2014
n4:svazekPeriodika
16
n4:tvurceVysledku
Nakada, Norihide Johnson, Andrew C. Hanamoto, Seiya Tanaka, Hiroaki Kumar, Vimal Yamashita, Naoyuki
n4:wos
000331504100006
s:issn
2050-7887
s:numberOfPages
7
n12:doi
10.1039/c3em00219e
n17:organizacniJednotka
12520