3.00 am 4th Dec 2012 I was measuring the radiation in the air in London and tonight i got a 0.19 mcSv/h or about 73 cpm average over a one hour count. Recently, the air quality has been around 0.10 mcSv/h or about 36 cpm. i checked the Eurdep mapping for radiation spikes and found … Continue reading 72 microsieverts/hour spike -Cattenom France, during emergency response exercise -Not noticed?