scholarly journals Occurrence and Distribution of Polybrominated Diphenyl Ethers in Sediments from Nairobi River Basin, Kenya, East Africa

2021 ◽  
pp. 274-286
Author(s):  
Enock M. Osoro ◽  
Shem O. Wandiga ◽  
Vincent O. Madadi ◽  
Deborah A. Abong'o
Keyword(s):  
River Basin ◽  
Polybrominated Diphenyl Ethers ◽  
Anthropogenic Activities ◽  
River Sediments ◽  
Aquatic Organisms ◽  
Sediment Samples ◽  
Four Seasons ◽  
Brominated Diphenyl Ethers ◽  
Diphenyl Ethers ◽  
Mean Concentration

This study was set to determine the levels and spatial distribution of selected PBDEs in sediments of Nairobi River during the four seasons experienced in Nairobi. Sediment samples were collected from nine sites along the river and analyzed for brominated diphenyl ethers 28, 47, 66, 85, 99, 100, 153, 154, and 183 using gas chromatography coupled with mass spectrometer. The mean concentration of polybrominated diphenyl ethers residue in sediment samples ranged between 134.70±3.07 to 24386.13±207.22 ng/Kg. The high mean concentration of PBDEs in the river sediments indicates that anthropogenic activities along the Nairobi River basin have contributed to polybrominated diphenyl ethers contamination of the river sediment posing a potential risk to aquatic organisms that inhabit the river.

Levels, distributions, and ecological risk assessments of polybrominated diphenyl ethers and alternative flame retardants in river sediments from Vaal River, South Africa

2019 ◽  
Vol 26 (7) ◽  
pp. 7156-7163 ◽  
Author(s):  
Tlou B. Chokwe ◽  
Makhosazane N. Magubane ◽  
Ovokeroye A. Abafe ◽  
Jonathan O. Okonkwo ◽  
Innocentia V. Sibiya
Keyword(s):  
South Africa ◽  
Ecological Risk ◽  
Polybrominated Diphenyl Ethers ◽  
Flame Retardants ◽  
River Sediments ◽  
Risk Assessments ◽  
Vaal River ◽  
Diphenyl Ethers ◽  
Ecological Risk Assessments

scholarly journals Analysis of brominated flame retardants in the aquatic environment: a review

2021 ◽  
Vol 72 (4) ◽  
pp. 254-267
Author(s):  
Karla Jagić ◽  
Marija Dvoršćak ◽  
Darija Klinčić
Keyword(s):  
Health Risks ◽  
Polybrominated Diphenyl Ethers ◽  
Aquatic Environment ◽  
Flame Retardants ◽  
Wastewater Treatment Plants ◽  
Aquatic Organisms ◽  
Brominated Flame Retardants ◽  
Polybrominated Biphenyls ◽  
Diphenyl Ethers ◽  
Harmful Effects

Abstract The most common and consequently analysed brominated flame retardants (BFRs) are polybrominated biphenyls (PBBs), polybrominated diphenyl ethers (PBDEs), tetrabromobisphenol A (TBBPA), tetrabromobisphenol S (TBBPS), and hexabromocyclododecane (HBCD). As these persistent organic pollutants are widespread in the environment and have a number of harmful effects on human health, the production and use of most has been banned for several years. The aquatic environment is polluted by these compounds through their deposition from the atmosphere, sewage sludge, wastewater treatment plants, and landfills, and higher levels are found in areas with developed industry and agriculture and near landfills. Each compound also seems to show preference for specific compartments of the aquatic environment, i.e. water, sediment, or aquatic organisms, according to their physicochemical properties. The aim of this review was to take a closer look at the analysis of BFRs, as without reliable analysis we would not be able to determine their levels and distribution across the aquatic compartments and assess human exposure and health risks. Particularly worrying are the health risks associated with PBDEs in fish, whose levels generally exceed the permitted values.

CURRENT CONTAMINATION OF PERSISTENT ORGANOCHLORINES IN THIVAI RIVER SEDIMENTS, SOUTHERN VIETNAM

2021 ◽  
Vol 36 (06) ◽  
Author(s):  
NGOC VINH NGUYEN ◽  
LUIZ FELIPPE DE ALENCASTRO
Keyword(s):  
River Basin ◽  
River Sediment ◽  
River Sediments ◽  
Dry Weight ◽  
Gas Chromatography Mass Spectrometry ◽  
Reference Sites ◽  
Sediment Samples ◽  
Southern Vietnam ◽  
Highly Sensitive ◽  
The World

This report presents the development an highly sensitive, stable and reliable OCs analyzing method with GC/MS (gas chromatography/mass spectrometry) and results of OCs (organochlorines) levels in sediments of Thivai River basin. The method recovery ranges from 72% to 129% and meets the requirement for OCs analyzing. 18 composite sediment samples were taken from 18 sites along Thivai river basin from upstream (Formosa Plant sewer mouth –  Lo Ren canal) to downstream (confluence of Thi Vai and Go Gia rivers). The analytical results show that OCs concentration in Thi Vai river sediment (max 1.73 ng/g dry weight) is not higher than those of the reference sites and other river basins in Vietnam and in the world.

Levels and distribution of polybrominated diphenyl ethers in plant, shellfish and sediment samples from Laizhou Bay in China

Chemosphere ◽  
2008 ◽  
Vol 71 (6) ◽  
pp. 1043-1050 ◽  
Author(s):  
Jun Jin ◽  
Weizhi Liu ◽  
Ying Wang ◽  
Xiao Yan Tang
Keyword(s):  
Polybrominated Diphenyl Ethers ◽  
Laizhou Bay ◽  
Sediment Samples ◽  
Diphenyl Ethers

Polybrominated diphenyl ethers (PBDEs), emerging environmental pollutants, are detected on sediment samples of a water recharge point of Guarani Aquifer in Brazil

2016 ◽  
Vol 259 ◽  
pp. S119-S120 ◽  
Author(s):  
A.O. Souza ◽  
R.S. Ferrari ◽  
D. Annunciação ◽  
F.F. Sodré ◽  
D.J. Dorta
Keyword(s):  
Polybrominated Diphenyl Ethers ◽  
Environmental Pollutants ◽  
Sediment Samples ◽  
Diphenyl Ethers ◽  
Water Recharge ◽  
Guarani Aquifer

Polybrominated diphenyl ethers and its methoxylated analogues in biota and sediment samples from two freshwater lakes in Yangtze River delta

2017 ◽  
Vol 76 (4) ◽  
Author(s):  
Xinyu Du ◽  
Hong Chang ◽  
Yihui Zhou ◽  
Yanling Qiu ◽  
Yan Wu ◽  
...  
Keyword(s):  
Polybrominated Diphenyl Ethers ◽  
Yangtze River ◽  
Yangtze River Delta ◽  
River Delta ◽  
Freshwater Lakes ◽  
Sediment Samples ◽  
Diphenyl Ethers

scholarly journals Organochlorine pesticides, polybrominated diphenyl ethers and polychlorinated biphenyls in surficial sediments of the Awash River Basin, Ethiopia

PLoS ONE ◽  
2018 ◽  
Vol 13 (10) ◽  
pp. e0205026 ◽  
Author(s):  
Niguse Bekele Dirbaba ◽  
Sen Li ◽  
Hongjuan Wu ◽  
Xue Yan ◽  
Jun Wang
Keyword(s):  
Polychlorinated Biphenyls ◽  
Organochlorine Pesticides ◽  
River Basin ◽  
Polybrominated Diphenyl Ethers ◽  
Surficial Sediments ◽  
Awash River Basin ◽  
Diphenyl Ethers

Polychlorinated Biphenyls, Polybrominated Diphenyl Ethers, and Phthalates in Roach from the Seine River Basin (France): Impact of Densely Urbanized Areas

2013 ◽  
Vol 66 (1) ◽  
pp. 41-57 ◽  
Author(s):  
Marie-Jeanne Teil ◽  
Khawla Tlili ◽  
Martine Blanchard ◽  
Pierre Labadie ◽  
Fabrice Alliot ◽  
...  
Keyword(s):  
Polychlorinated Biphenyls ◽  
River Basin ◽  
Polybrominated Diphenyl Ethers ◽  
Seine River ◽  
Diphenyl Ethers ◽  
Seine River Basin ◽  
Urbanized Areas
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