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Pujari PR Nanoti M Nitnaware VC Khare LA Thacker NP Kelkar PS 《Environmental monitoring and assessment》2007,134(1-3):271-278
On-site sanitation is increasingly adopted in urban cities in India. The adoption of On-site sanitation system puts the groundwater
resources in the vicinity of the system at a greater risk. Microbial contaminants as well as chemical contaminants like Chloride
and Nitrate are generated from human waste. These contaminants travel through the medium and ultimately get in contact with
the groundwater. Hence, the groundwater sources are vulnerable to nitrate contamination near the On-site sanitation systems.
The present study indicates significant Nitrate and Chloride contamination in samples collected close to On-site sanitation
systems. The recommended limit set by the Bureau of Indian standards (BIS) limit of 45 mg/l for Nitrate concentration is also
exceeded in few samples. The study indicates that Bacterial as well as Nitrate contamination is more in Monsoon as compared
to Summer. 相似文献
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Assessment of Pollution Near Landfill Site in Nagpur, India by Resistivity Imaging and GPR 总被引:2,自引:0,他引:2
Pujari PR Pardhi P Muduli P Harkare P Nanoti MV 《Environmental monitoring and assessment》2007,131(1-3):489-500
Groundwater pollution in the vicinity of a landfill site in Nagpur, India is assessed with the help of resistivity imaging
and GPR tools. The resistivity imaging survey indicates high conductive anomalies in the topsoil as well as the underlying
fractured rocks. Significant reflections from the GPR records known as radargrams are extracted with the help of maximum peak
module and Hilbert transform module in RADAN 6. These reflections can be attributed to presence of fractures, which are potential
pathways for migration of the fluid. The geophysical findings are strengthened by the results of groundwater analysis from
wells located close to the profile where resistivity and GPR survey have been carried out. The study has indicated the vulnerability
of the unconfined aquifer underlying the predominantly clay layer. 相似文献
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