Dissolved trace elements in Hooghly (Ganges) River Estuary, India: Risk assessment and implications for management

Mitra, Soumita; Sarkar, Santosh Kumar; Raja, P.; Biswas, Jayanta Kumar; Murugan, Kadarkarai

doi:10.1016/j.marpolbul.2018.05.057

Cited by 55 publications

(29 citation statements)

References 83 publications

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“…The results revealed that Cr expressed the highest value for both adult and children through the ingestion route, but for the dermal route, As showed the maximum values for all consumers. In terms of metal intake, the ingestion route plays the vital role in the EDI, which was comparable to the results observed by Alves et al (2014), Saha et al (2017), andMitra et al (2018).…”

Section: Estimation Of Daily Intake (Edi)supporting

confidence: 87%

“…where Cn is the concentration level of a particular metal and St is the standard guideline limit in Bangladesh proposed by the Department of Environment (DoE) as As: 0.05 mg/L, Cd: 0.005 mg/L, Cr: 0.05 mg/L, and Pb: 0.05 mg/L (DoE 1997). The estimated PI values have been represented on a six-category drinking water quality ranking based on the degree of anthropogenic influences of the selected elements studied (Mitra et al 2018): PI < 0.3 denotes class 1 (very pure), 0.3 < PI < 1 denotes class 2 (pure), 1 < PI < 2 denotes class 3 (slightly affected), 2 < PI < 4 denotes class 4 (moderately affected), 4 < PI < 6 denotes class 5 (highly affected), and PI > 6 denotes class 6 (tremendously affected).…”

Section: Determination Of Metal Pollutionmentioning

confidence: 99%

“…The risk assessment of the selected elements was carried out to identify the exposure level and the tendency of the elements accumulates in the human body (Mitra et al 2018). In this case, two distinct exposure pathways were considered: ingestion (through an intake of water) and dermal (through skin contact) (Yuan et al 2014).…”

Section: Estimated Daily Intakementioning

confidence: 99%

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Temporal assessment of heavy metal concentration and surface water quality representing the public health evaluation from the Meghna River estuary, Bangladesh

et al. 2021

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The Meghna River, the largest and the widest river in Bangladesh, is important for navigation, irrigation, fish spawning and shelter, industrial usages, and drinking water sources for millions of people living in nearby areas. The present study illustrated the seasonal variation of some physicochemical parameters and the four heavy metals (Cr, As, Cd, and Pb) distribution in the surface water of Meghna River estuary. It also evaluated the human health risk for adult and children due to directly contact with the surface water through ingestion and dermal pathways. The ranges of metal concentration in the study area were found in the descending order as: Cr (0.036–0.054; mean 0.045 ± 0.005) > As (0.012–0.036; mean 0.024 ± 0.007) > Cd (0.009–0.050; mean 0.018 ± 0.012) > Pb (0.007–0.014; mean 0.009 ± 0.007). In most cases, the concentrations of As, Cr, Pb, and Cd surpassed the guideline limits of human consumption. However, the one-way ANOVA study revealed that the average concentrations of the selected metals in the ten sampling sites were not significantly different at a 95% confidence level. Therefore, it is assumed that the metal contamination in the study area might have been caused due to the anthropogenic sources along with the natural phenomenon. The distribution of the metal contents and the physicochemical parameters in the surface water greatly were significantly different concerning both winter and summer seasons at a 95% confidence level. The evaluated hazard quotient (HQ) and the hazard index (HI) for the investigated metal compounds were in the acceptable limit (< 1). In addition, the attribution of metal contents did not overweigh the carcinogenic risk (CR) range (10–6 to 10–4), and the adults are more susceptible than the children. Although the risk is within the acceptable level, but adequate monitoring aspects should be implemented to control surface water pollution especially for the metal discharge to the river estuary.

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Section: Estimation Of Daily Intake (Edi)supporting

confidence: 87%

Section: Determination Of Metal Pollutionmentioning

confidence: 99%

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Temporal assessment of heavy metal concentration and surface water quality representing the public health evaluation from the Meghna River estuary, Bangladesh

et al. 2021

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“…Most existing literature report data of samples collected close to point-source pollution spots such as municipal sewage and industrial effluent disposal spots (Table S1; Ahirwar et al, 2015;Aktar et al, 2010;Bhattacharyay et al, 2005;Gupta et al, 2009;Haritash et al, 2016;Naushad et al, 2014;Pandey et al, 2010Pandey et al, , 2015Rai et al, 2012;Sarkar et al, 2007;Singh, Singh, & Mohan, 2005;Singh, 2011;Singh et al, 2012;Singh & Pandey, 2014;Vaseem & Banerjee, 2013). (2) Analytical methods: Many studies that have reported heavy metal concentrations have acid-digested the dissolved samples before analyzing them (Table S1; Aktar et al, 2010;Bhattacharyay et al, 2005;Garg et al, 1992;Gupta et al, 2009;Mitra et al, 2018;Naushad et al, 2014;Niveshika et al, 2016;Pandey et al, 2010;Rai et al, 2012;Sarkar et al, 2007;Singh, 2011;Singh et al, 2012;Singh & Pandey, 2014;Vaseem & Banerjee, 2013).…”

Section: Global and Regional Comparison Of Current Resultsmentioning

confidence: 99%

“…Since a data set representing the entire drainage basin is missing, we have limited understanding of how the Ganga River geochemically evolves from the source to the sink. Moreover, whether the existing data sets (Table S1; Paul, 2017) can be treated as truly representative of the river is questionable as most datasets represent samples collected from sites that are close to the effluent discharge from municipalities and industries (Ahirwar et al, 2015; Aktar et al, 2010; Banerjee, 2013; Bhattacharyay et al, 2005; Chaturvedi & Pandey, 2006; Chaudhary et al, 2017; Goswami & Sanjay, 2014; Gupta et al, 2009; Haritash et al, 2016; Kar et al, 2008; L. Singh et al, 2012; Naushad et al, 2014; Niveshika et al, 2016; Pandey et al, 2010, 2015; Rai et al, 2012; Sarkar et al, 2007; Singh, 2011; Singh et al, 2014; Singh & Pandey, 2014; Singh et al, 2005; Vaseem & Mitra et al, 2018). Spatially and temporally more extensive data sets would not only identify the variability of dissolved trace elements across space and time but would also help to understand the relative importance of each subcatchment (e.g., Yamuna, Ghaghara, and Kosi) to this variability.…”

Section: Introductionmentioning

confidence: 99%

Tracking Dissolved Trace and Heavy Metals in the Ganga River From Source to Sink: A Baseline to Judge Future Changes

Boral

Sen

Tripathi

et al. 2020

Geochem Geophys Geosyst

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Understanding how dissolved trace elements chemically evolve in the Ganga River from source to sink is important to understand subcatchment contributions and chemical variability across space and time but remains poorly constrained. What exists is site-specific data sets that are focused on capturing contamination "hotspots." Here, we present riverine trace element concentrations of 38 targeted locations in the Ganga Basin. Samples in the headwater and the upstream segments of the river were collected during the premonsoon, monsoon, and postmonsoon seasons of 2014, 2015, and 2016, and the downstream samples were collected in 2016. In addition, monthly time-series samples were collected at a downstream site to capture the geochemical variability at a higher temporal-resolution. To evaluate the geogenic contributions, groundwater, rainwater, snow, glacier-ice, and sediment samples were also analyzed. We find that the river chemistry displays a wide spatio-temporal variability. Headwater samples are characterized by high concentrations of trace elements that are primarily controlled by ice meltwater, intense weathering, and interactions with glacial flour and are therefore geogenic in nature. Moreover, high concentrations of trace metals were also observed in a few localized downstream sites. However, such enriched signals are not persistent further downstream as they get diluted by the joining of large tributaries. We show that the dissolved trace element concentrations in the Ganga River are low compared to existing datasets and are comparable to the global average river water composition. We additionally quantified the present-day "baseline" concentration ranges to facilitate future water quality assessment in the Ganga Basin. 1. Introduction Global freshwater availability and quality are constantly changing. A simple explanation for such behavior is climate change and pollution associated with population increase (

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Assessment of the Present State and Future Fate of River Saraswati, India: Water Quality Indices and Forecast Models as Diagnostic and Management Tools

Pramanik

Kaviraj

Saha

2023

CLEAN Soil Air Water

Self Cite

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Water quality assessment is key to the conservation and management of rivers. River Saraswati, a distributary of the river Ganga, serves as a lifeline to many villages in the district Hooghly in West Bengal, India. As the river is gradually dying due to diverse man‐made pollution, ten water quality parameters in two sampling spots (PR‐1 and PR‐2) in the river are monitored month‐wise from March 2017 to February 2020, and these are compared with those from a reference pond. The water quality index (WQI) is determined for the two riverine spots and the reference pond based on the Canadian Council of Ministers of Environment WQI (CCMEWQI) and weighted arithmetic WQI, respectively. In addition to actual observations, three different forecasting methods, exponential smoothing, autoregressive integrated moving average, and artificial neural network, are used to predict WQI for the next two years. This study indicates that free CO2, dissolved oxygen, and turbidity are the key parameters to evaluate this river's anthropogenic stress and health. The actual and forecasted results reflect the precipitous degradation of CCMEWQI in PR‐2. Therefore, the immediate intervention of all stakeholders is required to adopt an integrated and comprehensive river management plan to save the river from utter obliteration.

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Dissolved trace elements in Hooghly (Ganges) River Estuary, India: Risk assessment and implications for management

Cited by 55 publications

References 83 publications

Temporal assessment of heavy metal concentration and surface water quality representing the public health evaluation from the Meghna River estuary, Bangladesh

Temporal assessment of heavy metal concentration and surface water quality representing the public health evaluation from the Meghna River estuary, Bangladesh

Tracking Dissolved Trace and Heavy Metals in the Ganga River From Source to Sink: A Baseline to Judge Future Changes

Assessment of the Present State and Future Fate of River Saraswati, India: Water Quality Indices and Forecast Models as Diagnostic and Management Tools

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