Assessment of Physico-Chemical Parameters Along with the Concentration of Heavy Metals in the Effluents Released from Different Industries in Kathmandu Valley

Koju, Neel Kamal; Sherpa, Chhimi Dolker; Koju, Narayan Prasad

doi:10.1007/s11270-022-05645-2

Cited by 8 publications

(2 citation statements)

References 23 publications

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“…Heavy metal discharged from various industries and scrap yards threatens the human population and environment [41]. The potential anthropogenic sources of heavy metals in the environment include agricultural, industrial waste, inland effluent, wastewater irrigation [42,43], mining, and electroplating [44]. However, high levels of heavy metals in the environment can have hazardous consequences on people, animals, and plants [14,45].…”

Section: Discussionmentioning

confidence: 99%

Heavy‐metal tolerant bacterial strains isolated from industrial sites and scrap yards in Kashmir, India

Hamid,

Majeed,

Ganai

et al. 2023

J Basic Microbiol

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Heavy metal pollution has posed a severe danger to environmental stability due to its high toxicity and lack of biodegradability. The present study deals with the appraisement of tolerance shown by various bacteria in varied copper and iron concentrations. Among the 20 isolates, four isolates, GN2, SC5, SC8, and SC10, exhibiting more significant iron and copper tolerance, were selected and identified by 16 S ribosomal ribonucleic acid (rRNA) gene sequence analysis as Pantoea agglomerans strain GN2, Pantoea sp. strain SC5, Bacillus sp. strain SC8 and Priestia aryabhattaistrain SC10. The minimum inhibitory concentration of molecularly identified strains revealed that P. agglomerans strain GN2 showed tolerance to iron sulfate and copper sulfate upto 600 and 400 µg/mL, whereas Bacillus sp. SC8 (OQ202165) showed tolerance of 700 and 250 µg/mL were tolerant to iron sulfate and copper sulfate up to 700 and 150 µg/mL, respectively. Pantoea sp. strain SC5 showed significant tolerance to both heavy metals. The isolates were further studied for their ability to grow at varying temperatures and pH ranges. Most of the isolates showed optimal growth at 37°C and pH 7. However, Pantoea sp. SC5 was competent to have prominent growth at 45°C and pH 8.0. Microbial remediation, which is eco‐friendly, has proven the most effective method for bioremediation of heavy metal‐contaminated environments. Using heavy metal‐resistant bacteria for microbial remediation of iron and copper‐contaminated environments could be a viable and valuable strategy. These isolates could also be used to decontaminate heavy metal‐polluted agricultural soils.

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Section: Discussionmentioning

confidence: 99%

Heavy‐metal tolerant bacterial strains isolated from industrial sites and scrap yards in Kashmir, India

Hamid,

Majeed,

Ganai

et al. 2023

J Basic Microbiol

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“…The Ca 2+ ion concentration decreases as the pH is raised and hence shows significant negative robust interrelation with each other. The possible reason is phosphate ions at higher pH readily react with the Ca 2+ and Mg 2+ ions and make a less soluble form of them; as a result of this, Ca 2+ content decreases in the soil (Johan et al 2021), while past studies have shown a positive correlation between Ca 2+ and pH (Koju et al 2022).…”

Section: Relationship Between Calcium (Ca) and Phmentioning

confidence: 99%

Spatial analysis of soil quality using geospatial techniques in Botanic Garden of Indian Republic, Noida, Uttar Pradesh, India

Babbar

Chauhan

Sharma

et al. 2022

Environmental Sustainability

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Ex-situ conservation places such as botanical gardens require sufficient soil quality to support introduced species from various phytogeographical zones. The soil quality of the Botanic Garden of Indian Republic (BGIR), Noida, Uttar Pradesh, was evaluated to quantify soil nutrients. The dependency of one nutrient on the other nutrients was investigated using Pearson correlation and Multilinear regression analysis (MLRA). At the 0.05 level of significance, the nutrients Log10S and Log10EC (r = 0.97), N and OC (r = 0.98), Mn and OC (r = 0.97), Mn and N (r = 0.92), Ca and pH (r = − 0.91), Cu and Fe (r = 0.94) were found to be associated. Correspondence Analysis (C.A.) has been performed to find the association of soil elements with the soil type of study site. The spatial indices like NDVI (Normalized Difference Vegetation Index), EVI2 (Enhanced Vegetation Index), ARVI (Atmospherically Resistant Vegetation Index), NPCRI (Normalized Pigment Chlorophyll Index), RDVI (Renormalized Difference Vegetation Index) have shown significant correlation with the Log10S, Mg, Log10Zn, B and Fe respectively (with respective Pearson correlation coefficient r = 0.88, r = − 0.90, r = − 0.93, r = 0.91, r = 0.92 at P < 0.05). ARVI, along with other indices SCI (Soil Composition Index), NDMI (Normalized Difference Moisture Index), and MSAVI (Modified Soil Adjusted Vegetation Index), are also the predictor variables for Log10Zn (r = − 0.89, r = − 0.88 r = 0.92 at P < 0.05 respectively). MAVI2 (Moisture Adjusted Vegetation Index) positively correlates with OC, Mn content (r = 0.91, r = 0.93 respectively). MSAVI is negatively interrelated with Ca (r = − 0.89), SCI is negatively interrelated with Log10 K (r = − 0.98), BSI (Bare Soil Index) is positively associated with pH (r = 0.91), and negatively with Ca (r = − 0.93). At the same time, other indices like SAVI (Soil Adjusted Vegetation Index), SATVI (Soil Adjusted Total Vegetation Index), NDWI (Normalized Difference Water Index), and DVI (Difference Vegetation Index) have failed to explain the presence of soil nutrients based on spectral reflectance. This study is important for understanding the changing nutrient status of soil at the conservation site for successfully establishing plants from different phytogeographical zones.

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Insight into Urban River Water Quality Using Ecological Risk Assessment Based on Risk Quotient

Karki,

Philip,

Karki

et al. 2024

Water Conserv Sci Eng

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Assessment of Physico-Chemical Parameters Along with the Concentration of Heavy Metals in the Effluents Released from Different Industries in Kathmandu Valley

Cited by 8 publications

References 23 publications

Heavy‐metal tolerant bacterial strains isolated from industrial sites and scrap yards in Kashmir, India

Heavy‐metal tolerant bacterial strains isolated from industrial sites and scrap yards in Kashmir, India

Spatial analysis of soil quality using geospatial techniques in Botanic Garden of Indian Republic, Noida, Uttar Pradesh, India

Insight into Urban River Water Quality Using Ecological Risk Assessment Based on Risk Quotient

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