title: Chemical composition of precipitation in the coastal environment of India.
abstract: The present study investigated the chemical composition of precipitation at Comba, Madgaon, South Goa during southwest monsoon. The rainwater samples were collected on event basis during June-September 2008 and were analyzed for pH, major anions F, Cl, NO(3), SO(4)) and cations (Ca, Mg, Na, K, NH(4)). The pH value varied from 5.36 to 6.91 (6.25 +/- 0.28) indicating alkaline nature of rainwater and dominance of Cl and Na in precipitation. The Neutralization factors (NF) was found to be NFCa = 1.22, NFMg = 0.42, NFNH(4) = 0.37 and NFK = 0.14 indicating below cloud process in which crustal components are responsible for neutralization of anions.
authors.affiliation: National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, India.
authors.forename: T
authors.initials: T
authors.lastname: Gobre
authors.forename: P R
authors.initials: PR
authors.lastname: Salve
authors.forename: R J
authors.initials: RJ
authors.lastname: Krupadam
authors.forename: A
authors.initials: A
authors.lastname: Bansiwal
authors.forename: S
authors.initials: S
authors.lastname: Shastry
authors.forename: S R
authors.initials: SR
authors.lastname: Wate
mesh_terms: D000641:Ammonia; D000838:Anions / Q000032:analysis / Q000737:chemistry; D002118:Calcium; D002412:Cations / Q000737:chemistry*; D002712:Chlorides; D004784:Environmental Monitoring; D005459:Fluorides; D005843:Geography; D006863:Hydrogen-Ion Concentration; D007194:India; D008274:Magnesium; D009566:Nitrates; D009792:Oceans and Seas; D011188:Potassium; D011891:Rain / Q000737:chemistry*; D012621:Seasons; D012964:Sodium; D013431:Sulfates
chemical_list: D000838:Anions; D002412:Cations; D002712:Chlorides; D009566:Nitrates; D013431:Sulfates; D000641:Ammonia; D012964:Sodium; D008274:Magnesium; D005459:Fluorides; D011188:Potassium; D002118:Calcium