Fukushima monitoring data (Finland & Japan)

Fukushima monitoring data (Finland & Japan)




In Finland, air, fallout and milk samples were collected and analysed following the Fukushima accident. The total fallout of 131I was 35 Bq m-2 and cesium 3.5 Bq m-2. In milk samples no radioactivity was detected. A sampling and a measurement mission to Narita in Japan was executed during 26th and 28th March 2011.
Sampling and monitoring were also conducted in the vicinity of the Hilton hotel Narita and, Narita city centre, especially on the AEON shopping mall. In-situ measurements were made at the Hilton Narita hotel, both inside and outside, in Narita city center and AEON shopping mall. High-resolution gamma spectrometers were used to analyse the swipe, water and vegetable samples. A second mission to Japan took place between 16th and 19th May 2011, when only vegetable samples were collected.

STAR partnerSTUK
Type of dataMonitoring
Sample number10 - 100
QualityRadioactivity determinations were carried out using an accredited method with regular quality control through intercomparisons, calibrations and blank samples.
Spatially referencedNo
Ecosystem typeTerrestrial
Sample typePlant, water, food, air
Obtain data

Data are provided on request without restriction. Contact: star.stuk@stuk.fi

Key reference sources 
Data ownershipSTUK
Database formatExcel
Figure information1) 131I activity concentration in air for Helsinki, Finland (STUK)

fukushima , finland , milk , japan , air , foodstuffs , infoex


Prepared by STAR NoE