Assessment of quality and geochemical processes occurring in groundwaters near central air conditioning plant site in Trombay, Maharashtra, India

• Published in: Environmental monitoring and assessment Vol. 163; no. 1-4; pp. 171 - 184
• Main Authors: Tirumalesh, K, Shivanna, K, Sriraman, A. K, Tyagi, A. K
• Format: Journal Article
• Language: English
• Published: Dordrecht Dordrecht : Springer Netherlands 01-04-2010; Springer Netherlands; Springer; Springer Nature B.V
• Subjects: Air Conditioning; Air quality; Alkalinity; Applied sciences; Assessments; Atmospheric Protection/Air Quality Control/Air Pollution; Biological; Biological analysis; Chemical analysis; Chemistry; Cracks; Dissolution; Earth and Environmental Science; Ecology; Ecotoxicology; Environment; Environmental Management; Environmental monitoring; Environmental Monitoring - methods; Exact sciences and technology; geochemistry; Groundwater; Groundwater flow; Groundwaters; India; Industrial wastes; monitoring; Monitoring/Environmental Analysis; Natural water pollution; Plants (organisms); Pollution; Quality; Quality control; Research centers; Sea water; Seawater; Seawaters, estuaries; Studies; Total dissolved solids; Trombay; Water - chemistry; Water analysis; Water quality; Water treatment and pollution; India; ISW, India, Greater Mumbai Dist., Trombay; ISW, India, Maharashtra; Geochemistry; Groundwater; Trombay; Quality; Monitoring; Air conditioning; Surveillance; Water quality; Dissolution; Shallow water; Seawater; Ground water
• ISSN: 0167-6369; 1573-2959
• DOI: 10.1007/s10661-009-0825-9

This paper summarizes the findings obtained in a monitoring study to understand the sources and processes affecting the quality of shallow and deep groundwater near central air conditioning plant site in Trombay region by making use of physicochemical and biological analyses. All the measured parameters of the groundwaters indicate that the groundwater quality is good and within permissible limits set by (Indian Bureau of Standards 1990). Shallow groundwater is dominantly of Na-HCO₃ type whereas deep groundwater is of Ca-Mg-HCO₃ type. The groundwater chemistry is mainly influenced by dissolution of minerals and base exchange processes. High total dissolved solids in shallow groundwater compared to deeper ones indicate faster circulation of groundwater in deep zone preferably through fissures and fractures whereas groundwater flow is sluggish in shallow zone. The characteristic ionic ratio values and absence of bromide point to the fact that seawater has no influence on groundwater system.