406 / 536
4.1.5 Control of detrimental effects and impact
on the environment
In 2015, ASN carried out 40 inspections on the control
of the detrimental effects and environmental impact of
NPPs, mainly concerning the prevention of detrimental
effects, management of environmental discharges and
waste management.
On most sites, the way in which detrimental effects
and the environmental impact of NPPs are managed is
considered to be satisfactory, in particular through the
continued use of structures enabling new regulatory
requirements to be implemented and the creation on
several sites of independent environment organisations
similar to the independent safety organisation (see box
page 400). There are however considerable differences
among the sites with regard to the oversight and
coordinationmeasures adopted to define andmonitor the
discharge objectives. Learning lessons from experience
feedback is also an area in which progress could still
be made.
Deviations are still being observed in the operation
and monitoring of the facilities. In particular, on
the majority of sites, the detection and handling of
deviations concerning the conformity of the facilities
could be improved, or are sometimes even completely
inadequate. Liquid containment anomalies observed
on several sites also show that a number of operating
and maintenance provisions are not given sufficient
GRAPH 2:
Mean collective dose per reactor
2014 2015
2013
2012
2011
2009 2010
2007 2008
2005 2006
2003 2004
2001 2002
1996 1997 1998 1999 2000
1.08
1.17
1.21
1.42
1.59
1.02
0.97
0.89
0.79 0.78
0.69
0.63 0.66 0.69
0.62
0.71 0.67
0.79
0.72 0.71
0.5
1.0
1.5
2.0
Source: EDF.
Collective dose
(M.Sv)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Heat-insulation
Supervision Inspection
Electricity
Mechanical boiler making
Auxiliary
Welding
GRAPH 3:
Evolution of mean individual dose according to categories of workers involved in reactor maintenance
Average dose (mSv)
2015
2014
2013
2012
Source: EDF.
406
CHAPTER 12:
EDF NUCLEAR POWER PLANTS (NPPs)
ASN report on the state of nuclear safety and radiation protection in France in 2015