Sentences with becquerels
- The department began remedial work in early 2000, soon after the first phase of the survey became available, and the work is ongoing in the remaining 690 schools in where radon concentrations exceed 200 becquerels per cubic metre.
- Of that number, 121 had radon concentrations above the national reference level and nine had very high radon concentrations of more than 1000 becquerels per cubic metre.
- The rate of decay in a given mass of the radionuclide is measured in units called becquerels, where 1 Bq equals one transformation per second.
- Schools in the county had the highest average reading in the country of 153 becquerels, and one Kerry school had one of the highest readings in Ireland with more than 3800 becquerels per cubic metre being detected.
- This box, designed to monitor gamma radiation, in itself contained enough strontium 90 to emit 500,000 becquerels of radioactivity.
- One sample taken in Glencree village recorded a reading of almost six times the safety limit of 1,000 becquerels per litre.
- The analyses also found cobalt - 60 values of up to 40 becquerels per kilogram, and pollution from cesium - 137 in concentrations of up to 9,400 becquerels per kilogram.
- The concentrations of tritium in leachate at the site sampled in March this year reached 14,230 becquerels per litre, compared to the 290 becquerels per litre reported in 1996.
- ‘This analysis did confirm the existence of the contamination but at very low levels - up to 10 becquerels per kilogram - in an area not normally accessed by members of the public,’ said a spokeswoman for Sepa.