Study: Air in New York after Fukushima disaster exceeded 3,400 μBq/m³ of Iodine-131 gas — Health impacts ‘minimal’ (MAP)

Published: March 25th, 2013 at 3:38 pm ET
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Title: Airborne gamma-ray emitters from Fukushima detected in New York State – Springer
Source: Journal of Radioanalytical and Nuclear Chemistry
Authors:  Michael E. Kitto, Traci A. Menia, Douglas K. Haines, Shaun E. Beach, Clayton J. Bradt, Eileen M. Fielman, Umme-Farzana Syed, Thomas M. Semkow, Abdul Bari, A. J. Khan
Date: April 2013


Abstract

An air-sampling network that operates continuously as part of New York State’s environmental surveillance program collected radionuclides emitted as a result of the Fukushima nuclear accident. Samples were collected, typically for 7 days each, by drawing ~600 m3 of air through a particulate-collecting filter followed in series by a canister containing activated charcoal. Additional air sampling was implemented at ~3-day intervals at two locations. Gamma-ray spectroscopy was used to confirm the detection of 131I, 137Cs, 134Cs, and 7Be in the particulate phase at all sites, with maximum concentrations near 1,260, 160, 160, and 5,200 μBq/m3, respectively. Gas-phase 131I, collected on activated charcoal, exhibited a maximum concentration of 3,400 μBq/m3 at the sites. Assessment of radionuclide levels in the air samples suggests that there were minimal health impacts from the airborne radionuclides as the activities contributed an insignificant amount to the annual human dose.

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Published: March 25th, 2013 at 3:38 pm ET
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