Since then, the institute has
been working on improving its assessment of the terrestrial and
marine contamination (Mathieu et al., 2012; Bailly du Bois et al.,
2012). Understanding the formation process of highly contaminated
areas cannot be achieved through measurements
only. While several kinds of measurements are available, they
only yield partial information: gamma dose rates devices have
a high temporal resolution, but are integrated overall gammaemitters,
and are too scarce to provide a good spatial coverage.
Soil samplings and airborne readings provide maps of the contamination,
but no information on short-lived species, noble
gases, and temporal variations. Thus, improving atmospheric
dispersion simulations remains a key issue, especially for dose
assessments