MODARIA IIWorking Group 2

Assessment of Exposures andCountermeasures in Urban Environments

Kathleen Thiessen, Ph.D.Oak Ridge Center for Risk Analysis, Inc.

31 October - 4 November 20161st MODARIA II Technical Meeting

Vienna

WG2Urban Exposures Working Group

• First meeting of WG2 this week• 26 participants, 20 countries• Joint sessions with WG3 and WG1• Extensions of earlier work• Development of new exercises• Initial literature reviews• Interim meeting in May 2017 in Vienna (dates

to be determined)

Extensions of earlier work

• Model review– Additional models– Updates for some models

Extensions of earlier work

• Fukushima exercise– Dose assessment, countermeasures

Extensions of earlier work

• Šoštanj exercise– Atmospheric dispersion– Tracer data– Additional meteorological situations– Forecasting

Development of new exercises

• Boletice– New field test

• Urban dispersion exercise– Hypothetical release

• Ar-41 data set– Atmospheric dispersion– With WG3

Initial Literature Reviews

• Urban building materials– Retention,

penetration, weathering

– Concrete and asphalt

• Sewer systems

Thank you!