Ecotoxicological Risk Assessment of Polychlorinated Biphenyls (PCBs) in Bank Sediments from along the Yamuna River in Delhi, India

Kumar, Bhupander; Kumar, Sanjay; Sharma, Chandra Shekhar

doi:10.1080/10807039.2012.723181

Cited by 32 publications

(11 citation statements)

References 24 publications

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“…This was expected because PCBs are hydrophobic and tend to be adsorbed onto solid organic particles and sediment (Bazzanti et al 1997). Compared to PCBs detected elsewhere, this level was higher than that detected in the sediments obtained from the Yamuna River in Delhi in India (0.20-21.16 ng/g) with a mean of 6.63±0.69 ng/g (Kumar et al 2013). The levels in this study were also found to be higher than those found in Vietnam (Hanoi region) (0.47-28.10 ng/g, dw) (Nhan et al 2001) or those in the Bahlui River, in Eastern Romania (24-158 ng/g with a mean of 59 ng/g) (Dragan et al 2006).…”

Section: Polychlorinated Biphenyls In Surface Sedimentscontrasting

confidence: 72%

Occurrence and significance of polychlorinated biphenyls in water, sediment pore water and surface sediments of Umgeni River, KwaZulu-Natal, South Africa

Gakuba

Moodley

Ndungu

et al. 2015

Environ Monit Assess

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The Umgeni River is one of the main sources of water in KwaZulu-Natal, South Africa; however; there is currently a lack of information on the presence and distribution of polychlorinated biphenyls (PCBs) in its sediment, sediment pore water and surface water. This study aims to determine the occurrence and significance of selected PCBs in the surface water, sediment pore water and surface sediment samples from the Umgeni River. Liquid-liquid and soxhlet extractions were used for water or pore water, and sediments, respectively. Extracts were cleaned up using a florisil column and analysed by gas chromatography-mass spectrometry. The total concentrations of eight polychlorinated biphenyls were 6.91-21.69 ng/mL, 40.67-252.30 ng/mL and 102.60-427.80 ng/g (dry weight), in unfiltered surface water, unfiltered sediment pore water and surface sediments, respectively. The percentage contributions of various matrices were 4, 36 and 60 % for unfiltered surface water, unfiltered pore water and sediment, respectively. The highest concentrations of PCBs were found in water, pore water and sediment collected from sampling sites close to the Northern Wastewater Treatment Works. The highest chlorinated biphenyl, PCB 180, was the most abundant at almost all sampling sites. To our knowledge, this is the first report on occurrence of polychlorinated biphenyls in the Umgeni River water, pore water and sediment system and our results provide valuable information regarding the partitioning of the PCBs between the water and sediment systems as well as the organic chemical quality of the water.

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Section: Polychlorinated Biphenyls In Surface Sedimentscontrasting

confidence: 72%

Occurrence and significance of polychlorinated biphenyls in water, sediment pore water and surface sediments of Umgeni River, KwaZulu-Natal, South Africa

Gakuba

Moodley

Ndungu

et al. 2015

Environ Monit Assess

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“…River in Delhi in India (Kumar et al, 2013). However, concentrations of PCBs were lower as compared to reported by Malik et al (2014) from the sediment of Soan River, Pakistan (27.9-116 µg kg -1 ).…”

Section: Spatial Distribution Of Persistent Organic Pollutants In Sedmentioning

confidence: 56%

Accumulation of toxic metals and organic micro-pollutants in sediments from tropical urban rivers, Kinshasa, Democratic Republic of the Congo

et al. 2017

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The increasing contamination of fresh water resource by toxic metals and Persistence Organic Pollutants (POPs) is a major environmental concern globally. In the present investigation, surface sediments collected from three main rivers named, Makelele, Kalamu and Nsanga, draining through the city of Kinshasa, Democratic Republic of the Congo, were characterized for grain size, organic matter, toxic metals, POPs (including organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs)), and polycyclic aromatic hydrocarbons (PAHs). Furthermore, enrichment factor (EF) and geoaccumulation index (Igeo) were performed to determine metal source and pollution status. The results highlighted high concentration of toxic metals in all sediment samples, reaching the values (mg kg) of 325 (Cu), 549 (Zn), 165 (Pb) and 1.5 (Cd). High values of PCBs and OCPs were detected in sediment samples, e.g. in Makelele river, PCB values ranged from 0.9 to 10.9 with total PCBs (∑7 PCBs × 4.3): 169.3 μg kg; OCPs from 21.6 to 146.8 with ∑OCPs: 270.6 μg kg. The PBDEs concentrations were higher in investigated rivers comparatively with values detected in many rivers from Sub-Saharan Africa. The ΣPAHs value ranged from 22.6 to 1011.9 μg kg. River contamination may be explained by local intense domestic activities, urban and agricultural runoff, industrial and hospital wastewaters discharge into the rivers without prior treatment. This research provides not only a first baseline information on the extent of contamination in this tropical ecosystem but also represents useful tools incorporated to evaluate sediment quality in the river receiving systems which can be applied to similar aquatic environments.

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“…The maximum PCB value is well below the consensus-based TEC of 59.8 ng g − 1 (Ingersoll et al, 2000). TEQ values (b d.l.− 15.8 pgTEQ g −1 , average 1.29 pgTEQ g −1 , Tables S3-5 in the Supplementary material) are comparable to those characteristic of low-impacted areas (Kumar et al, 2013;Dodoo et al, 2012). Relatively little is known about the toxicity of CB-11: as it is not substituted in the ortho-positions, it may exhibit dioxin-like toxicity (Rodenburg et al, 2010).…”

Section: Potential Toxicity Of Nador Lagoon Sediments Due To Pahs Andmentioning

confidence: 77%

Recognizing different impacts of human and natural sources on the spatial distribution and temporal trends of PAHs and PCBs (including PCB-11) in sediments of the Nador Lagoon (Morocco)

Giuliani

Piazza

Moumni

et al. 2015

Science of The Total Environment

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Ecotoxicological Risk Assessment of Polychlorinated Biphenyls (PCBs) in Bank Sediments from along the Yamuna River in Delhi, India

Cited by 32 publications

References 24 publications

Occurrence and significance of polychlorinated biphenyls in water, sediment pore water and surface sediments of Umgeni River, KwaZulu-Natal, South Africa

Occurrence and significance of polychlorinated biphenyls in water, sediment pore water and surface sediments of Umgeni River, KwaZulu-Natal, South Africa

Accumulation of toxic metals and organic micro-pollutants in sediments from tropical urban rivers, Kinshasa, Democratic Republic of the Congo

Recognizing different impacts of human and natural sources on the spatial distribution and temporal trends of PAHs and PCBs (including PCB-11) in sediments of the Nador Lagoon (Morocco)

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