Evaluation of Radioactivity in Surabaya Coastal Estuary Ecosystem with Spectrometry α, β, γ

Article type: Research Article

Authors: Siswanto, ^{; *} | Taftazani, Agus^a | Prasetyo, Dedy

Affiliations: Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya, Indonesia | [a] P3TM-BATAN Yogyakarta, Indonesia

Correspondence: [*] Corresponding Author. siswanto@fst.unair.ac.id

Abstract: Radioactivity levels have been measured in sediment samples, Echornia crassipes and Anadara granosa at the Surabaya river estuary. Measurement data were obtained by spectrophotometric method, which is a way of measuring and identifying radionuclides through observations of the spectrum emitted with detector material. The results of measurements and calculations that have been done show that the mean concentration of activity α, β, γ (gross) in water in the Morokrembangan estuary and Kenjeran river estuary is still below the threshold value of group C waters quality. Radionuclide identification results indicate the presence of natural radionuclides K 40, Tl 208 and Pb 212, whereas artificial radionuclides Pu 239 and Cs 137 were not detected in all samples.

Keywords: Radioactivity, water quality, spectrophotometry α, β, γ

DOI: 10.3233/AJW200030

Journal: Asian Journal of Water, Environment and Pollution, vol. 17, no. 3, pp. 19-23, 2020