Pollution status, spatial distribution and ecological risk of heavy metals in sediments of a drinking water lake in South Eastern China

Uddin, Mohammad Mazbah; Peng, Guogan; Ya, Wang; Huang, Lingfeng

doi:10.1080/26395940.2021.1894988

Cited by 20 publications

(3 citation statements)

References 42 publications

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“…Cadmium (Cd) is a non-essential and noxious metal in environmental mediums. The intensified blooming of chemical, fertilizer, pesticide, marine shipping, and petrochemical industries globally is increasing the discharge of chemical pollutants, including Cd to the lagoons, rivers, lakes, and oceans [1][2][3]. Due to these chemical pollutants, the biological quality and ecological environment of whole marine and terrestrial ecosystems are damaged, intensifying the degree of pollution [4,5].…”

Section: Introductionmentioning

confidence: 99%

Physiological and Cellular Ultrastructural Responses of Sesuvium portulacastrum under Cd Stress Grown Hydroponically

Uddin,

Chen,

et al. 2023

Plants

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This study aimed to investigate the physiological and cellular mechanisms of Sesuvium portulacastrum under heavy metal stress to evaluate possible tolerance and adaptation mechanisms in a metal-polluted environment. The physiological and cellular ultrastructural responses of S. portulacastrum were studied hydroponically under exposure to a range of cadmium (Cd) concentrations (50 µM to 600 µM) for 28 days. The activity of antioxidant enzymes like catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD), changes in chlorophyll, and cellular ultrastructural content were examined. There was no significant difference in chlorophyll content in the leaf under the stress of 300 μM, but 400 μM and 600 μM Cd stress showed significantly decreased chlorophyll content. The SOD activity indicates an increase under the Cd stress of 100 μM for leaves, 300 μM for stems, and 50 μM for roots; after that, the SOD activity gradually decreased with increasing Cd concentrations. But POD activity was considerably increased with increasing Cd stress. CAT activity showed a gradual increase in concentrations until 300 μM of Cd stress and then decreased sharply in roots, stems, and leaf tissues. Cd stress had a considerable impact on the structure of the roots, stems, and leaves cells, such as distorted and thinner cell walls and the deformation of chloroplasts, mitochondria, and other organelles. Therefore, the increased number of nucleolus in the cell nucleus suggests that cells may be able to maintain their protein synthesis in a stressful environment. This study concludes that SOD is the dominant antioxidant enzyme activity during low Cd toxicity (<100 μM), while POD is the dominant enzyme activity during higher Cd toxicity (>100 μM).

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Section: Introductionmentioning

confidence: 99%

Physiological and Cellular Ultrastructural Responses of Sesuvium portulacastrum under Cd Stress Grown Hydroponically

Uddin,

Chen,

et al. 2023

Plants

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“…Examination of the geographical distribution of the toxic substances Cr, Mn, Ni, Cu, Zn, As, Cd, and Pb in deposits from Longhu Lake to determine their pollutant levels and associated environmental dangers was performed. Zn, Cd, and Pb are moderately to highly polluted in lake sediments, according to the GI (The Geo-accumulation Index), and these elements may be more harmful than some other materials [11]. The results of this study will give important new information on the possible environmental effects of farming activities on the delta region's water quality.…”

Section: Introduction mentioning

confidence: 83%

Analytical Studies on the Radionuclide Levels of Sediment and Water in an Agricultural Environment in the Egyptian Delta

Shady,

A. Elzain

2023

Atom Indo.

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This paper is an environmental investigation of the concentration values of radioisotopes and hazardous elements, aimed to shed light on industrial pollution and the effect of using fertilizers in the period of irrigation water drainage from cultivated lands, especially in the River Nile, irrigated, and draining channels in the middle portion of the Egyptian river delta. Different samples were analyzed, both for water and sediment. Many physical and chemical characteristics of samples were investigated. Among them are the quantitative measure of the acidity or basicity of aqueous or other liquid solutions (pH), grain size, and the total organic matter content (TOM) have been determined for sediments. pH and TDS, beside other types of pollutants, were determined for water samples. The water and sediment samples pH are slightly alkaline. The mean value of TDS for water samples is 488 mg/l, while he usual TDS value in river is 500 mg/l. The TOM values show that the sediment samples are poor in organic matter content. The bicarbonate range in the water samples is smaller than the same range in river water. The levels of Ra-226, Th-232, and K-40 activity in sediments are highly correlated. Natural radionuclides seem to correlate with the artificial Cs-137 in sediment. For this peruse, a 240 cm3 high-purity germanium reagent Type-B was used to quantify the levels in each sample with a relative accuracy of 50 %. The radioactive element K-40 is having a typical value of 12.5 Bq/kg. The concentrations of both Cu beside Zn in water samples is smaller if compared with values that quoted by the WHO, the US-EPA, and the EC. It was also found that the average levels for both Cd and Mn are found to be close to the internationally recommended levels. The water and sediments in the southern part of the canal contain higher concentrations of heavy metals and radioactive isotopes than in the rest of the canal.

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“…Several indices are used to measure water used for drinking, irrigation, recreation and domestic and industrial purposes. Multivariate statistical analysis, WOI, heavy metal pollution index (HPI), sodium percentage (Na %), sodium absorption rate (SAR) and magnesium hazard (MH) are usually used on the surface waters of rivers (Uddin et al 2021).…”

Section: Introductionmentioning

confidence: 99%

The assessment of health risk from heavy metals with water indices for irrigation and the portability of Munzur Stream: A case study of the Ovacık area (Ramsar site), Türkiye

Kutlu

Sarıgül

2023

OandHS

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Surface water samples from the area of Munzur Stream in Türkiye (a Ramsar site) were evaluated for their suitability for irrigation and drinking purposes using different water quality indices. The human health risks were assessed as well. The study was conducted over a period of 24 months from January 2019 to December 2021 by taking samples from nine stations every month in order to determine the water quality of Munzur Stream, located in Tunceli. According to the results, Munzur Stream is in good condition in terms of the quality of drinking water and irrigation water. The concentrations of heavy metals such as Cu, Ni, Fe and Hg were high, though the water quality parameter according to Türkiye Ministry of Forestry and Water Affairs Surface Water Quality Regulations (TSWQR) was significantly lower than the permitted limits. In Munzur Stream, the irrigation water for all stations was reported to be excellent, good and suitable in terms of SAR, Na% and MH, respectively. The principal component analysis data formed the four principal components, explaining 98.22% of the total variance. The sources of pollution in this area include the rock types of the basin, soil erosion, domestic waste water discharge and agricultural flow of inorganic fertilisers.

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Pollution status, spatial distribution and ecological risk of heavy metals in sediments of a drinking water lake in South Eastern China

Cited by 20 publications

References 42 publications

Physiological and Cellular Ultrastructural Responses of Sesuvium portulacastrum under Cd Stress Grown Hydroponically

Physiological and Cellular Ultrastructural Responses of Sesuvium portulacastrum under Cd Stress Grown Hydroponically

Analytical Studies on the Radionuclide Levels of Sediment and Water in an Agricultural Environment in the Egyptian Delta

The assessment of health risk from heavy metals with water indices for irrigation and the portability of Munzur Stream: A case study of the Ovacık area (Ramsar site), Türkiye

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