Distribution of Persistent Organic Pollutants in Urban Aquatic Systems

Kumar, Rahul; Gupta, Bharat; Gupta, Himanshu; Rani, Manviri

doi:10.12983/ijsres-2014-p0233-0243

Cited by 7 publications

(3 citation statements)

References 12 publications

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“…The fossil fuels burned for cooking and coal-fired power plants located in the area also contributed through local atmospheric depositions of the PAHs. These observations were in consistence with other reported findings for aquatic systems influenced by urban wastewater (16,17,21,28,(40)(41)(42).…”

Section: Possible Source Identification Of Pahssupporting

confidence: 93%

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Priority Polycyclic Aromatic Hydrocarbons (PAHs): Distribution, Possible Sources and Toxicity Equivalency in Urban Drains

Kumar

Verma

Sharma

et al. 2015

Polycyclic Aromatic Compounds

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Wastewater from urban areas constitutes one of the major sources of pollutants contributed to aquatic ecosystem. This study was carried out to elucidate the occurrence and possible source of US Environmental Protection Agency identified 16 priority polycyclic aromatic hydrocarbons (PAHs) in water and sediments from the urban wastewater drains in Delhi, India. A total 60 samples (water and sediment) collected during year 2011-2012, and analyzed the following USEPA methods. Water and sediment samples were extracted using liquid-liquid and ultrasonication techniques, respectively. Glass column chromatography with activated silica was used for sample extracts clean-up, followed by quantification on HPLC equipped with diode array detector at 254 nm wavelength using mixture of acetonitrule and water as mobile phase. Concentrations of total 16 PAHs ( 16PAHs) in all drain water samples ranged from 0.29-35.22 μg/L (mean ± SD, 10.83 ± 10.66 μg/L), predominated by two-and three -ring PAHs. The 16PAHs concentrations in all collected sediments ranged between 220-19321 μg/kg (mean±SD, 5574 ± 6820 μg/kg) dry weights. High molecular weight PAHs (≥4-ring PAHs) were dominant in sediment samples. Benzo(a)pyrene equivalent (BaPeq), a relative carcinogenic potential to the corresponding PAHs to BaP was estimated and presented. A selected number of concentration ratios of specific PAHs compounds were calculated and used to diagnose the possible sources of PAHs contamination. The diagnostic ratios reflected pyrogenic input from gasoline or diesel powered vehicular emissions as the major source of PAHs. The levels of PAHs observed in water and sediments were compared with similar studies undertaken in other regions of the world.

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Section: Possible Source Identification Of Pahssupporting

confidence: 93%

“…The concentration of PAHs observed in studied drain water is comparable with Gomti River (16) and urban lake, Bhopal (17) in India and Thepba River, Thailand (18). Higher concentrations of PAHs in water have been reported in other studies from Ghana, Mexico and Thailand.…”

Section: Polycyclic Aromatic Compoundssupporting

confidence: 66%

Priority Polycyclic Aromatic Hydrocarbons (PAHs): Distribution, Possible Sources and Toxicity Equivalency in Urban Drains

Kumar

Verma

Sharma

et al. 2015

Polycyclic Aromatic Compounds

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“…The study demonstrates the pollution of the river with pesticide residues, but also the necessity of a continuous long-term monitoring of the affected environment. Kumar et al, [43] reported the maximum pesticide concentrations in water and sediments of the lakes were 4.12 (aldrin), 2.26 (endrin), 6.17 (pp'-DDT), 5.98 ng mL -1 (α-endosulfan) and 167 (aldrin), 124 (endrin), 513 (pp'-DDT), 349 ng g-1 (α-endosulfan), respectively. The aldrin and endrin were absent at all the sites of the Yamuna.…”

Section: Pesticidesmentioning

confidence: 99%

Toxic Pollution in River Water and Bacterial Remediation: An Overview

Raghav¹,

Shrivastava²

2016

Int.J.Curr.Microbiol.App.Sci

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The major cause of global concern which leads to onset of numerous fatal diseases is water pollution which is responsible for the death of over 14,000 people every day. Water pollution is defined as any destruction in its native characteristics by addition of anthropogenic contaminants, which disturb the normal use of water either it cannot serve to human for drinking purposes and/or to support the biotic communities. The problem of water pollution is more frightening in developing countries in comparison to industrialized nations. The major changes in the ecological status and water quality caused due to natural disasters like earthquakes, volcanoes, algal blooms and storm. Fresh water is limited resource, vital for agriculture, industry and even human existence, without fresh water of adequate quantity and quality, sustainable development will not be possible. The accumulation of various kinds of pollutants and nutrients through sewage, industrial effluents and agricultural runoff into the water bodies bring about a series of changes in the physicochemical and characteristics of water, which have been the subject matter of several investigations. Almost 50% of the

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