title: Latitudinal variation and residence time of (137)Cs in Indian coastal environment.
abstract: Anthropogenic (137)Cs activity concentration, in surface sea water along the western and eastern coast of India has been estimated using the in-situ pre-concentration approach. Activity levels of (137)Cs ranges from 0.09-1.30Bqm(-3) with an overall mean of 0.69±0.29Bqm(-3). Latitudinal variation and higher depletion in activity concentration of (137)Cs at few locations were observed. Temporal change of (137)Cs in sea water along Indian coast unveils a lower effective half-life of 13.8±0.7y in comparison to Asia Pacific regional sea water. The results prevailed that the spatial distribution confers no fresh input of (137)Cs in Indian coastal region.
authors.affiliation: Health Physics Division, Bhabha Atomic Research Center, Mumbai 400 085, India.
authors.forename: S J
authors.initials: SJ
authors.lastname: Sartandel
authors.affiliation: Health Physics Division, Bhabha Atomic Research Center, Mumbai 400 085, India. Electronic address: skjha@barc.gov.in.
authors.forename: S K
authors.initials: SK
authors.lastname: Jha
authors.affiliation: Health Physics Division, Bhabha Atomic Research Center, Mumbai 400 085, India.
authors.forename: R M
authors.initials: RM
authors.lastname: Tripathi
mesh_terms: D002588:Cesium Radioisotopes / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods; D006207:Half-Life; D007194:India; D019156:Indian Ocean; D012623:Seawater / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis; D014875:Water Pollutants, Radioactive / Q000032:analysis*
chemical_list: D002588:Cesium Radioisotopes; D014874:Water Pollutants, Chemical; D014875:Water Pollutants, Radioactive
keywords: (137)Cs activity concentration; Coastal surface water; Effective half-life; Pre-concentration