10x is equivalent to a CT scan, but exposure to this level for a long length of time is carcinogenic& wether this has gone up or down since is unkown. The area where the explosion happened carbonising one worker & injuring others was near a reactor too hot to appoach at the time, but the power company says the reactor was not breached.
Vlittle on UK news, except the Gaurdian.The Sarkozy government have increased nuclear investment after Fuksishama & apperently not done full reports on plants in the Avignon region which is prone to earthquakes since the Fukishama nuclear disaster.
Best for people in the region to stay in as much as possible, especially pregnant women,if you know anyone near Nimes I would advice them to look into the situation much more & get a packet of Iiodine tablets.

 http://radiationnews.blogspot.com/2011/09/9132011-marcoule-increase-in.html
 http://www.indymedia.org.uk/en/2011/09/484771.html
 http://www.forbes.com/sites/christopherhelman/2011/03/16/what-are-millisieverts-and-should-tokyo-be-scared-of-them/
 http://www.dw-world.de/dw/article/0,,6475627,00.html
 http://www.reuters.com/article/2011/03/16/us-japan-quake-health-idUSTRE72E9DL20110316

Interesting report from Greenpeace on Marcoule& Fukishama with a report on how Japan can get away from nuclear by2012.
 http://www.greenpeace.org/international/en/news/Blogs/nuclear-reaction/explosion-at-marcoule-nuclear-industry-spin-h/blog/36789/
 http://www.guardian.co.uk/world/2011/jun/27/nicolas-sarkozy-france-nuclear-power