Assessment of physicochemical properties of water and their seasonal variation in an urban river in Bangladesh

Rahman, Arafat; Jahanara, Ishrat; Jolly, Yeasmin Nahar

doi:10.1016/j.wse.2021.06.006

Cited by 65 publications

(33 citation statements)

References 22 publications

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“…The result further revealed a significant difference in concentration levels at a 0.05 level of confidence. Because industrial effluent is known to cause changes in the physicochemical parameters of water bodies [46,78,79], the fact that concentration levels downstream of River Rido differed significantly from observations at the control point while remaining similar to observations at the discharge point was expected. The discharge of industrial effluent into rivers, which causes pollution, has also been reported for selected provinces in South Africa [11,79] and rural Poland [80].…”

Section: Resultsmentioning

confidence: 85%

Downstream Effects of Industrial Effluents Discharge on Some Physicochemical Parameters and Water Quality Index of River Rido, Kaduna State, Nigeria

Butu¹,

Emeribe

Muoka

et al. 2022

Trop. Aqua. Soil Pollut.

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The effects of industrial effluent discharge on the water quality of River Rido in Kaduna South, Kaduna State, were examined. These include the Northern Noodles discharge point, the Kaduna Refinery discharge point, and points downstream of the River Rido. An interval of 100m between sampling points was established to achieve an even representation of sampling points. The physico-chemical parameters investigated include pH, free dissolved carbon dioxide, alkalinity, hardness, sodium, electrical conductivity, Turbidity, total suspended solids, total phosphate, nitrate, sulfate, and dissolved oxygen. Mean levels of turbidity Total suspended solids and total phosphate at effluent discharge points, as well as in most areas downstream of the study area, were generally above permissible limits for drinking water. Statistical differences were observed in the concentration levels of investigated parameters between the control point and effluent discharge points, as well as between the control point and areas downstream of the study area. However, concentration levels were observed to be similar between discharge points and areas downstream of the study area, an indication of contamination downstream by effluent discharge upstream. Notwithstanding, the water quality index of physico-chemical parameters at both effluent discharge points and areas downstream of River Rido shows that the quality of the river ranged from good to excellent at effluent discharge points and areas downstream of River Rido, respectively. This might be attributed to the effect of dilution from rainfall. It is therefore recommended that wastewater effluent from the refinery and northern noodles be properly treated before discharged into the study area.

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Section: Resultsmentioning

confidence: 85%

Downstream Effects of Industrial Effluents Discharge on Some Physicochemical Parameters and Water Quality Index of River Rido, Kaduna State, Nigeria

Butu¹,

Emeribe

Muoka

et al. 2022

Trop. Aqua. Soil Pollut.

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“…The previous reports shown that forestlands and grasslands were negatively correlated with nitrogen pollution of river water [33]. It was reported that in Turag River, pollution from factories along the river significantly changed the environmental conditions such as DO, COD and BOD 5 nearby, which could be the key factors determining the longitudinal distribution pattern of the microbial community [32]. The strength of stressor inflow, namely the volume, also had crucial influence on the distribution of nutrient and microorganisms [61].…”

Section: Response Relationship Between Environmental Factors and Micr...mentioning

confidence: 96%

Pattern changes of microbial communities in urban river affected by anthropogenic activities and their environmental driving mechanisms

et al. 2022

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The microbial community structure of sediments in the Bahe River Basin, China was studied using a high-throughput sequencing platform and PCR amplification to investigate the pattern changes in microbial communities in urban rivers affected by anthropogenic activities and their environmental driving mechanisms. The results demonstrated that the average total nitrogen and total phosphorus in the sediments were 524 and 734 mg/kg, respectively. The T, COD and $${\text{NH}}_{4}^{ + }$$ NH 4 + -N of the water and the moisture content of the sediments has significantly impacted on the microbial community structure. Twenty microbial species with a relative abundance > 1% in the sediments of the river were observed, accounting for 95–99% of the total microbial community. The primary species were Proteobacteria (13.86–69.14%), Firmicutes (1.45–58.33%), Chloroflexi (3.68–26.18%), Actinobacteria (2.7–21.51%), Acidobacteria (0.73–16.36%), Bacteroides (1.53–14.11%), and Thermodesulfobacteria (0.1–8.9%), accounting for over 90% of the total microbial community. At the class level, the primary species were γ-proteobacteria, Alphaproteobacteria, Anaerolineae, Bacillus, Bacteroidota, Actinobacteriota, and Clostridia, accounting for over 70% of the total microbial community. Our results provide direct evidence for a link between microbial community structure and environment factors. This evidence demonstrates that sediment microorganisms can be applied to evaluate urban rivers pollution levels, which can provide a scientific basis for pollution control and management in the urban river affected by human activities.

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“…[ 36,37,40] where, ADD dermal = exposure dose via dermal contact, mg/kg/day; C= concentration of heavy metal in soil, mg/kg, SA= exposed skin area (1150 for child and 2145 for adult, cm 2 ); AF = adherence factor (0.2 for child and 0.07 for adult, mg.cm −2 day −1 ); ABS= fraction of the applied dose absorbed across the skin (0.001) for all element but for Arsenic, ABS = 0.03. EF, ED, BW, and AT are as defined earlier in Equation (10) HQ soil Non-carcinogenic health risk HQ soil = ADD (ADDinges + ADD inha + ADD derm ) RfD (12) [40] HI Hazard Index HI = ∑HQ i = HQ ing + HQ inh + HQ der (13) [40]…”

Section: Add Dermalmentioning

confidence: 99%

“…Thus, health risks arising from soil can be estimated by calculating various soil pollution indices of HMs, their soil-to-plant transfer factors, direct exposure level to humans, and their levels in edible food crops as well as health risk due to consumption of contaminated food crops. Numerous studies have been conducted all over the world and so as in Bangladesh, to estimate the health hazards of heavy metal contaminated soil [ 9 , 10 , 11 , 12 , 13 ] and food contamination [ 14 , 15 , 16 , 17 , 18 , 19 , 20 ] individually. However, in this study health effects due to heavy metal contaminated soil and vegetables grown on the same industrially affected soil have been computed.…”

Section: Introductionmentioning

confidence: 99%

Impact of Industrially Affected Soil on Humans: A Soil-Human and Soil-Plant-Human Exposure Assessment

Jolly

Rakib

Sakib

et al. 2022

Toxics

Self Cite

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Heavy metal (HM) contaminated soil can affect human health via ingestion of foodstuffs, inhalation of soil dust, and skin contact of soil. This study estimates the level of some heavy metals in soils of industrial areas, and their exposures to human body via dietary intake of vegetables and other pathways. Mean concentrations of Cr, Fe, Cu, Zn, As and Pb in the studied soil were found to be 61.27, 27,274, 42.36, 9.77, 28.08 and 13.69 mg/kg, respectively, while in vegetables the respective values were 0.53, 119.59, 9.76, 7.14, 1.34 and 2.69 mg/kg. Multivariate statistical analysis revealed that Fe, Cu, Zn, and Pb originated from lithogenic sources, while Cr and As are derived from anthropogenic sources. A moderate enrichment was noted by Cr, As, and Pb in the entire sampling site, indicating a progressive depletion of soil quality. The bioaccumulation factor (BCF) value for all the vegetables was recorded as BCF < 1; however, the metal pollution index (MPI) stipulates moderately high value of heavy metal accumulation in the vegetable samples. Hazard Index (HI) of >0.1 was estimated for adults but >1 for children by direct soil exposure, whereas HI < 1 for both children and adults via dietary intake of vegetables. Estimated Total carcinogenic risk (TCR) value due to soil exposure showed safe for adults but unsafe for children, while both the population groups were found to be safe via food consumption. Children are found more vulnerable receptors than adults, and health risks (carcinogenic and non-carcinogenic) via direct soil exposure proved unsafe. Overall, this study can be used as a reference for similar types of studies to evaluate heavy metal contaminated soil impact on the population of Bangladesh and other countries as well.

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Assessment of physicochemical properties of water and their seasonal variation in an urban river in Bangladesh

Cited by 65 publications

References 22 publications

Downstream Effects of Industrial Effluents Discharge on Some Physicochemical Parameters and Water Quality Index of River Rido, Kaduna State, Nigeria

Downstream Effects of Industrial Effluents Discharge on Some Physicochemical Parameters and Water Quality Index of River Rido, Kaduna State, Nigeria

Pattern changes of microbial communities in urban river affected by anthropogenic activities and their environmental driving mechanisms

Impact of Industrially Affected Soil on Humans: A Soil-Human and Soil-Plant-Human Exposure Assessment

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