Transcript Requirements for protection of the

WP3 Overview
Requirements for Protection of
the Environment from Ionising
Radiation
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Objectives
”Derive and propose numerical target values
• for an extended list of ecological targets and
protection levels,
• designed to assure compliance with
environmental protection goals that resonate
with protective goals set up for releases of
hazardous substances in general, and
to assess the implications for society at large”
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Milestones
Feb’08
Decision on appropriate level of protection
Feb’08
Decision on numerical targets
April’08
Issue draft D5 Part B for web consultation with experts
Apr´08
Deliver agenda for workshop to “consult external experts and
presentation of different approaches to wider audience”
May’08
WP3 workshop in Aix-en-Provence
Jun’08
Deliver minutes on workshop
Sept’08
Publish Deliverable 5, Part A, Part B (revised) and Part C
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Deliverable D5:
Aims, and associated secondary numerical
targets for protecting biota against radiation
in the environment
– D5A: Recommendations for further actions
– D5B: Proposed levels and underlying
reasoning
– D5C: Records of end-users’ views on
feasibility of proposed targets – i.e. at WP3
workshop in Aix May 2008.
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Input from WP1
• Protection should focus on the population level
although it should be noted that individuals may
need to be considered
• The protection goals should be translated into
measurable targets
• The use of one or two types of values should be
evaluated
• In determining benchmarks to comply with a
protection goal, the level of conservatism should
be recorded
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Protection Goal
• Level of protection?
• (all) individuals
• (all) populations
• (all) ecosystems (structure, function of)
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To protect the sustainability of populations
of the vast majority of all species and thus
ensure ecosystem function now and in the
future. Special attention should be given to
keystone species and other species of
particular value.
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Showing compliance
For Example
– Monitor media concentrations
– Biological surveillance, e.g. monitor
population parameters like population
density, age distribution, sex ratio, biodiversity
index.
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IAEA
Terrestrial
Plants
Reference Pine tree
Reference wild grass
Animals
Invertebrates
Reference bee
Reference earthworm
Reference Duck
Mammals
Reference Deer
Reference Rat
Aquatic
Fresh water organisms
Algae
Macrophytes
Bentic invertebrates
Reference frog
Fish
Reference Trout
Marine water organisms
Reference crab
Reference Flatfish
Reference brown seaweed
Deep ocean organisms
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Unscear
Enviroment
Canada
µGy/h
ERICA
ICRP
10
400
400
100
4-40
40-400
40
40
200
400-4000
400-4000
4-40
100
4-40
4-40
400
400
10
100
100
200
4-40
20
40-400
10
400-4000
40-400
40-400
1000
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Types of values
• Screening value
• Conservative
• Generic
• Values triggering regulatory action
• Low conservatism
• Differing between organism group
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Sensitivity: acute doses
Unscear, 1996
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Interaction with WP2
• Provide you with numerical values
• Record your opinions on the
usefulness and implications of these
values
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