2017
DOI: 10.3390/toxics5020013 View full text |Buy / Rent full text
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Abstract: This study assessed the concentrations of polybrominated diphenylethers (PBDEs) in stream water obtained from Asunle stream, an adjoining stream of the Obafemi Awolowo University dumpsite. Water samples were collected for a period of eight months from six different locations comprising of a spot upstream in an uphill area relative to the refuse dumpsite and five others downstream along the stream course. The sampled waters were extracted with dicholoromethane using liquid-liquid extraction method and cleanup w… Show more

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“…Higher levels of BDEs were reported in wet as compared to the dry season. A similar observation was reported in Asunle stream, Nigeria, by Olutona et al [17]. The level of PBDEs recorded in wet might be due to active mobilization of leached PBDEs congeners by erosion into water bodies during the rainy season.…”
Section: Resultssupporting
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“…Higher levels of BDEs were reported in wet as compared to the dry season. A similar observation was reported in Asunle stream, Nigeria, by Olutona et al [17]. The level of PBDEs recorded in wet might be due to active mobilization of leached PBDEs congeners by erosion into water bodies during the rainy season.…”
Section: Resultssupporting
“…The nondetectable or presence of BDE-99, 153 and 183 in the samples were comparably similar to Yang et al [15] for nine water samples in China. The BDEs reported were comparably similar in most cases to Pei et al [16] for Yellow river, China; while Diep river, South Africa [4], Asunle stream, Nigeria [17] were lower. The water from Jiaozhou Bay [18], Beijing River [19], Lake Michigan [20], San Francisco, USA [21] and Izmir Bay, Turkey [22] were higher than the present study.…”
Section: Resultssupporting
“…The concentration of BDE congeners in all the groundwater samples were higher when compared to previous studies (Streets et al, 2006;Wurl et al, 2006). Also, previous work on Predecelle River (France), Aire River (UK), electronic industrial water (China) and groundwater in Ireland (Harrad et al, 2020) had reported varying concentrations of ΣPBDEs but these are comparatively lower to the results obtained in this study (Labadie et al, 2010;Cristale et al, 2013;Jiang et al, 2014;Olutona et al, 2017;Harrad et al, 2020). Essumang et al (2018) reported BDE 100 as the most abundant congener, followed by BDE-99.…”
Section: Pbdes Concentration In Watercontrasting
“…Harrad S et al [42] assessed the effects of seasonal change on PBDEs concentrations in water but did not report significant seasonal variations as well. The ∑PBDEs levels in water in this study and in Ile Ife [10], another town in Nigeria with much less industries were found to be above EC's safe limit (0.0002 mg/L). This raises concern on the diffuse nature of this pollutant and the potential for environmental and public health risks.…”
Section: The Occurrence Of Pbdes In Watercontrasting
“…They tend to stick to sediments which usually act as a sink for hydrophobic contaminants [7]. Their presence has been detected in water [8][9][10], and aquatic organisms such as molluscs [11] and fish [12,13] which are able to bioaccumulate them, and most importantly, traces of PBDEs have been found in humans [14][15][16]. Their detection in humans has led to the study of their biological effects [17][18][19][20][21].…”
Section: Introductionmentioning