Pollution evaluation of total and acid-leachable trace elements in surface sediments of Hooghly River Estuary and Sundarban Mangrove Wetland (India)

Mondal, Priyanka; Reichelt‐Brushett, Amanda; Jonathan, M.P.; Sujitha, S.B.; Sarkar, Santosh Kumar

doi:10.1007/s11356-017-0915-0

Cited by 45 publications

(5 citation statements)

References 68 publications

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“…In 2016 the capital city of West Bengal alone holds 740 thousands registered vehicles. Apart from this, jute mill on both sides of the Hooghly river bank, power generation, coal industries were indirectly linked to the water and air pollution (Mondal et al 2018 ). According to WHO (World Health Organization) standards, Kolkata needs to reduce average PM 10 by 98% from the current baseline (Gurjar et al 2010 ).…”

Section: Introductionmentioning

confidence: 99%

Have any effect of COVID-19 lockdown on environmental sustainability? A study from most polluted metropolitan area of India

Chowdhuri

Pal

Arabameri

et al. 2021

Stoch Environ Res Risk Assess

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The long-term lockdown due to COVID-19 has beneficial impact on the natural environment. India has enforced a lockdown on 24th March 2020 and was subsequently extended in various phases. The lockdown due to the sudden spurt of the COVID-19 pandemic has shown a significant decline in concentration of air pollutants across India. The present article dealt with scenarios of air quality concentration of air pollutants, and effect on climatic variability during the COVID-19 lockdown period in Kolkata Metropolitan Area, India. The result showed that the air pollutants are significantly reduced and the air quality index (AQI) was improved during the lockdown months. Aerosol concentrations decreased by − 54.94% from the period of pre-lockdown. The major air pollutants like particulate matters (PM 2.5 , PM 10 ), sulphur dioxide (SO 2 ), carbon monoxide (CO) and Ozone (O 3 ) were observed the maximum reduction ( − 40 to − 60%) in the COVID-19 lockdown period. The AQI has been improved by 54.94% in the lockdown period. On the other hand, Sen’s slope rank and the Mann–Kendal trend test showed the daily decreased of air pollutants rate is − 0.051 to − 1.586 μg /m3. The increasing trend of daily minimum, average, and maximum temperature from the month of March to May in this year (2020s) are 0.091, 0.118, and 0.106 °C which is lowest than the 2016s to 2019s trend. Therefore, this research has an enormous opportunity to explain the effects of the lockdown on air quality and climate variability, and it can also be helpful for policymakers and decision-makers to enact appropriate measures to control air pollution.

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Section: Introductionmentioning

confidence: 99%

Have any effect of COVID-19 lockdown on environmental sustainability? A study from most polluted metropolitan area of India

Chowdhuri

Pal

Arabameri

et al. 2021

Stoch Environ Res Risk Assess

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“…Due to industrial, commercial, and domestic land-use areas, the catchment of the HRE is highly urbanized and has become a receptor of a diverse source of contaminants from both point and non-point sources of pollution. Previous studies about TEs contamination along the HRE [10][11][12][13][14][15][16] were carried out, but an evaluation on human health risk is still missing. Therefore, it is important to assess the ecological and health risks of TEs in the region.…”

Section: Introductionmentioning

confidence: 99%

Health Risk and Geochemical Assessment of Trace Elements in Surface Sediment along the Hooghly (Ganges) River Estuary (India)

Mondal

Lofrano

Carotenuto

et al. 2021

Water

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This study investigated sediment spatial and seasonal distribution of trace elements (TEs) (n = 16) and human health effects along the Hooghly River Estuary (India). The index of geo-accumulation (Igeo), enrichment factor (EF), hazard quotient (HQ), modified hazard quotient (mHQ) and toxic risk unit (TRI) were calculated to estimate sediment pollution level, while hazard index (HI) and lifetime cancer risk (LCR) were used to assess TEs enrichment vs. human health. The concentrations (µg/g dry weight) of TEs were: Cd (0.01–1.58), Cr (41.98–105.49), Cu (16.41–51.09), Ni (28.37–63.90), Fe (22075–47919), Mn (423–630), Co (11.43–23.11), Zn (48.82–105.81), V (63.92–138.92), Pb (25.01–43.27) and Ti (0.18–3.50); As (2.92–16.26), B (59.34–98.78), Si (11.52–98.78); Be (1.71–4.81), Ba (95.23–293.72). From Igeo and EF, Cd was the major contaminant, while Ni presented moderate/high contamination (HQ and TRI). Children were more exposed to carcinogenic and non-carcinogenic risks compared to adults. For non-carcinogenic substances, no significant risk was found to both children and adults (HIs < 1). The LCR for Cr (3.924 × 10−4 for children) and As (1.379 × 10−4 for children) was higher than the threshold limit value (TLV, 10−4 and 10−6) indicating significant carcinogenic risks to be managed.

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“…This latter survey reveals that in West Bengal, there is a large presence of chemical industries like petrochemical, fertilizer and textile plants and pulp paper mills beside hospital discharging huge volumes of untreated wastes into the river water. The literature reports several studies dealing with the level of pollution by TEs of HR sediments: Ghosh et al ( 1983 ); Chakraborty and Gupta ( 2003 ); Dutta et al ( 2005 ); Kar et al ( 2008 ); Jonathan et al ( 2010 ); Paul and Sinha ( 2013 ); Sarkar et al ( 2017 ); Paul ( 2017 ); and Mondal et al ( 2018a , 2018b , 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution of trace elements in surface sediments of Hooghly (Ganges) river estuary in West Bengal, India

Trifuoggi

Ferrara

Toscanesi

et al. 2021

Environ Sci Pollut Res

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The spatial distribution of trace elements in surface sediments of the Hooghly estuary was studied over the monsoons in 2014–2017. As, Cd, Ni, Pb and U were two- to sixteen-fold the crust means with increasing levels toward the estuary, with Ni peak during the post-monsoon. Pearson’s correlation matrix, cluster analysis, enrichment factors and pollution index revealed the anthropic source and association of trace elements with Fe, Mn and Al and of Pb with U. Geoaccumulation index revealed for Ni an extremely contaminated situation at the estuary water during monsoon and for Cd a heavily contaminated situation at freshwater location. The potential contamination index was >6; thus, sediments were very severely contaminated by As, Cd and Ni with worst situation for As and Cd at fresh and brackish water and during post-monsoon. The overall ecological risk was severe, 300≤RI<600 at all sites and seasons, especially after the monsoon, at fluvial and brackish locations.

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Pollution evaluation of total and acid-leachable trace elements in surface sediments of Hooghly River Estuary and Sundarban Mangrove Wetland (India)

Cited by 45 publications

References 68 publications

Have any effect of COVID-19 lockdown on environmental sustainability? A study from most polluted metropolitan area of India

Have any effect of COVID-19 lockdown on environmental sustainability? A study from most polluted metropolitan area of India

Health Risk and Geochemical Assessment of Trace Elements in Surface Sediment along the Hooghly (Ganges) River Estuary (India)

Spatial distribution of trace elements in surface sediments of Hooghly (Ganges) river estuary in West Bengal, India

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