Heavy metal concentration and ecological risk assessment in surface sediments of Dal Lake, Kashmir Valley, Western Himalaya

Shah, Rayees Ahmad; Achyuthan, Hema; Krishnan, Hari; Lone, Aasif Mohmad; Saju, Sarun; Ali, Aasif; Lone, Suhail A.; Malik, Mohmad Subzar; Dash, Chinmay

doi:10.1007/s12517-021-06504-w

Cited by 17 publications

(6 citation statements)

References 61 publications

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“…Organic matter exists widely in all kinds of water environments and is one of the important chemical components in a water environment. Organic matter participates in the material circulation of the aquatic environmental food web and affects the occurrence, migration, transformation, cycle, and biological availability, and toxicity of water environment pollutants, including nitrogen, phosphorus, heavy metals, and toxic and harmful organic matters (Guo et al 2020;Shah et al 2021;Slukovskii et al 2020;Yao et al 2020). Organic matters in a lake water environment have complex and diverse compositions and structures and can be divided into dissolved (DOM), suspended particulate (SPOM), and sediment (SOM) organic matters in accordance with different attached media (Chen et al 2021;Verdugo et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Differences in the Composition, Source, and Stability of Suspended Particulate Matter and Sediment Organic Matter in Hulun Lake, China

Wang

Chen

Wang

et al. 2021

Preprint

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Sediment (SOM) and suspended particulate (SPOM) organic matters are two important organic matters in water. Their occurrence, migration and transformation, and stability have important effects on the environmental behaviors of carbon, nitrogen, phosphorus, and other pollutants in a water environment. The content, composition, fluorescence characteristics, source, and stability of SOM and SPOM in Hulun Lake, a typical lake in cold and arid region of China, were compared by sequential extraction, three-dimensional fluorescence spectroscopy, parallel factor technique, carbon–nitrogen ratio, and stable carbon isotope. SOM and SPOM in north and west were higher than those in east and south. The average content of SPOM (24.70 ± 4.63 g/kg) was slightly higher than that of SOM (23.04 ± 10.27 g/kg), but the difference was not significant. Humin was the dominant component in SOM and SPOM, accounting for 73.7% and 61.2%, respectively. Humus was the main fluorescence component of water-extractable organic matter in SOM and SPOM, accounting for 79.9% and 70.4%, respectively, of the total fluorescence intensity. SOM and SPOM were derived from terrestrial sources with relative contribution rate of about 70%. SPOM was more influenced by autochthonous sources and had significantly lower humification degree and stability than SOM. Effects of climate changes on migration, transformation, stability, and bioavailability of organic matters and endogenous pollutants closely related to organic matters in lakes of cold and arid regions should be paid attention in the future.

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Section: Introductionmentioning

confidence: 99%

Differences in the Composition, Source, and Stability of Suspended Particulate Matter and Sediment Organic Matter in Hulun Lake, China

Wang

Chen

Wang

et al. 2021

Preprint

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“…Increased concentrations of As in urban environment leads to increased risk of renal failure and skin cancer [ 10 , 11 ] while exposure to Cr increases the risk of respiratory and digestive system damage [ 12 , 13 ]. Unfortunately, the HMs and other pollutants in Dal Lake has changed the hydrochemistry of the water body and has decreased the aesthetic value in attracting tourists, which are the major drivers of the local economy [ 14 , 15 ]. The chemical poisoning of the Dal Lake has occurred in recent years and has culminated in the death of millions of fishes [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Economic valuation and characterization of heavy metal contamination in Dal Lake Srinagar, Kashmir, India

Parray,

Singh,

Koul

et al. 2024

Heliyon

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Section: Introductionmentioning

confidence: 99%

Differences in the composition, source, and stability of suspended particulate matter and sediment organic matter in Hulun Lake, China

Wang

Chen

Wang

et al. 2022

Environ Sci Pollut Res

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Sediment (SOM) and suspended particulate (SPOM) organic matters are two important organic matters in water. Their occurrence, migration and transformation, and stability have important effects on the environmental behaviors of carbon, nitrogen, phosphorus, and other pollutants in a water environment. The content, composition, fluorescence characteristics, source, and stability of SOM and SPOM in Hulun Lake, a typical lake in cold and arid region of China, were compared by sequential extraction, three-dimensional fluorescence spectroscopy, parallel factor technique, carbon-nitrogen ratio, and stable carbon isotope. SOM and SPOM in north and west were higher than those in east and south. The average content of SPOM (24.70 ± 4.63 g/kg) was slightly higher than that of SOM (23.04 ± 10.27 g/kg), but the difference was not significant. Humin was the dominant component in SOM and SPOM, accounting for 73.7% and 61.2%, respectively. Humus was the main fluorescence component of water-extractable organic matter in SOM and SPOM, accounting for 79.9% and 70.4%, respectively, of the total fluorescence intensity. SOM and SPOM were derived from terrestrial sources with relative contribution rate of about 70%. SPOM was more influenced by autochthonous sources and had significantly lower humification degree and stability than SOM. Effects of climate changes on migration, transformation, stability, and bioavailability of organic matters and endogenous pollutants closely related to organic matters in lakes of cold and arid regions should be paid attention in the future.

show abstract

Heavy metal concentration and ecological risk assessment in surface sediments of Dal Lake, Kashmir Valley, Western Himalaya

Cited by 17 publications

References 61 publications

Differences in the Composition, Source, and Stability of Suspended Particulate Matter and Sediment Organic Matter in Hulun Lake, China

Differences in the Composition, Source, and Stability of Suspended Particulate Matter and Sediment Organic Matter in Hulun Lake, China

Economic valuation and characterization of heavy metal contamination in Dal Lake Srinagar, Kashmir, India

Differences in the composition, source, and stability of suspended particulate matter and sediment organic matter in Hulun Lake, China

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