Awareness on usage of contaminated groundwater around Perungudi dumpsite, Tamil Nadu, India

Parameswari, K.; Mudgal, B. V.; Padmini, T. K.

doi:10.1007/s10668-015-9668-4

Cited by 4 publications

(1 citation statement)

References 8 publications

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“…Possible reasons for this heterogeneity include water availability due to sand dam characteristics, including area of wall, grain sizes, depth of sediment, width of riverbed, and slope of banks (Aerts et al, 2007 ; Borst & de Haas, 2006 ; de Trincheria et al, 2015 ; Jansen, 2007 ; Nissen-Petersen, 2006 ; Quinn et al, 2019 ; Strohschein, 2016 ) and environmental characteristics, including rainfall, soil, geology, accessibility, topography, and stream order (Jeil et al, 2020 ; Ngugi et al, 2020 ; Thwala, 2010 ; Wrisdale et al, 2017 ; van Houweling, 2016 ). Additionally, social factors including number of users, average distance to each dam, quality, safety, availability and use of other sources, perceptions, volume abstraction limits, tradition, price, and water use practices (particularly whether livestock drink directly from pooled water or if water is fetched for them from the handpump) may impact use (Chan, 2019 ; Devoto et al, 2012 ; Elliott et al, 2017 ; Howard, 2002 ; Jiang & Rohendi, 2018 ; Parameswari et al, 2016 ; WHO & UNICEF, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Sand dam contributions to year-round water security monitored through telemetered handpump data

Ritchie,

Holman,

Parker

et al. 2023

Environ Monit Assess

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Sand dams are a form of rainwater harvesting, prolific in arid and semi-arid lands. Water is provided partly via handpumps, which, as the only improved method of abstraction from sand dams, are important for drinking water security. Accelerometers and cellular transmitters were fitted to 30 handpumps by the Africa Sand Dam Foundation (ASDF) in 2019 to monitor the use and reliability of the handpumps by recording hourly water volume abstracted. Data from April 2019 to October 2021 for 26 of these sites, alongside qualitative data, were analysed and each handpump’s contribution to year-round water security was explored, focusing on the long dry season when water supply from other sources is compromised. Abstraction was over 20 times higher in the long dry season than in any other season, and at sites with higher salinity, higher livestock use, and larger dam wall area. At 21 wells, abstraction was still being recorded at the end of at least one long dry season; however, high spatial and temporal heterogeneity between pumps and seasons means that not all sand dams deliver reliable water supply year-round. Quantifying the contribution that sand dams make to water security is crucial for understanding their resilience against a changing climate and can aid decision makers when choosing the most appropriate water management technique. Knowledge of temporal and site heterogeneity in abstraction can inform when other water sources need increasing and can help with sand dam design optimisation. Overall, our results indicate the positive contribution that sand dams make to year-round water security through the water that is abstracted through handpumps.

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Section: Discussionmentioning

confidence: 99%

Sand dam contributions to year-round water security monitored through telemetered handpump data

Ritchie,

Holman,

Parker

et al. 2023

Environ Monit Assess

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Parametric Evaluation of Leachate Generated from a Non-engineered Landfill Site and Its Contamination Potential of Surrounding Soil and Water Bodies

Ganguly

Sharma

et al. 2018

Pollutants From Energy Sources

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An assessment of subsurface contamination of an urban coastal aquifer due to oil spill

Nambi

Rajasekhar

Loganathan

et al. 2017

Environ Monit Assess

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Incidences of leakages of chemicals from underground oil storage tanks or oil-carrying pipelines have posed huge threat to the coastal aquifers around the world. One such leak was recently identified and notified by the people of Tondiarpet, Chennai, India. The assessment of the contamination level was done by obtaining electrical resistivity maps of the subsurface, drilling of 20 new borewells for soil and water analysis, and testing the water quality of 30 existing borewells. Samples were collected from the borewells, and observations were made that included parameters such as odor, moisture, contamination characteristics, lithology, groundwater level, thickness of the free product that are used to demarcate the extent of soil, and water contamination. Furthermore, a multigas detector was used to detect hydrocarbon presence as soil vapor. Moreover, to capture the transport of dissolved hydrocarbons, 10 samples were collected in the periphery of the study area and were analyzed for the presence of petroleum hydrocarbon and polyaromatic hydrocarbon. Analysis of the data indicated the presence of free-phase hydrocarbon in soil and groundwater close to the junction of Thiruvottiyur high (TH) road (TH) and Varadaja Perumal Koil (VPK) street. Although the contaminant plume is confined to a limited area, it has spread more to the southern and eastern side of the pipeline possibly due to continuous abstraction of groundwater by residential apartments. After cutting a trench along the VPK street and plotting of the plume delineation map, observations indicated that the source of the hydrocarbon leak is present in VPK street close to TH road. A multipronged strategy was suggested targeting the remediation of oil in various phases.

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Awareness on usage of contaminated groundwater around Perungudi dumpsite, Tamil Nadu, India

Cited by 4 publications

References 8 publications

Sand dam contributions to year-round water security monitored through telemetered handpump data

Sand dam contributions to year-round water security monitored through telemetered handpump data

Parametric Evaluation of Leachate Generated from a Non-engineered Landfill Site and Its Contamination Potential of Surrounding Soil and Water Bodies

An assessment of subsurface contamination of an urban coastal aquifer due to oil spill

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