Transcript Slide 1

Revision of the International
Basic Safety Standards - BSS 115
- Status Report 2008 ISOE International ALARA Symposium
Tsuruga, Japan, 13 – 14 November
Renate Czarwinski & Pascal Deboodt
Radiation Safety and Monitoring Section
Division for Radiation, Transport and Waste Safety
Department of Nuclear Safety and Security
IAEA
International Atomic Energy Agency
Revision of BSS SS115
International Basic Safety Standards for
Protection against Ionizing Radiation and
for the Safety of Radiation Source
Status of revision: draft 1.0
International Cooperation with
WHO, PAHO, FAO, ILO, OECD/NEA, EC, UNEP,
ICRP, IRPA
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BSS revision process
● Initial topical drafting meetings that were completed
in May 2007
● Collation of the drafting group material by the IAEA
Secretariat
● The recommendations of a Technical Meeting (TM)
held in Vienna from 16-20 July 2007
● Additional advice from a meeting of Cosponsoring
Organizations from 3-4 September 2007
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BSS revision process (2)
● Recommendations from RASSC/WASSC in their
meeting in October 2007
● Drafting meeting with cosponsoring organizations and
invited experts from 26 – 30 November 2007
● Drafting meeting with cosponsoring organizations and
invited experts from 10 – 14 March 2008
● Drafting meeting with cosponsoring organizations and
invited experts from 7 – 11 April 2008
● Review/drafting meeting with cosponsoring organizations
13 -16 May 2008
● Draft 1.0 made available by end June 2008
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Revision BSS
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Draft 1.0
1. Introduction
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Background
Objective
Scope
Structure
Includes explanatory text on system of protection and
safety, types of exposure situation, dose constraints and
reference levels, protection of the environment, quantities
and units
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Revision BSS
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Draft 1.0
2. General Requirements for Protection and Safety
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Responsibilities of government
Responsibilities of regulatory body
Principal parties
Management requirements
Implementation of radiation protection principles
Contains requirements that apply to all types of exposure
situations
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Revision BSS
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Draft 1.0
3. Planned Exposure Situations
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Scope
Generic requirements
Occupational exposure
Public exposure
Medical exposure
Generic requirements include administrative requirements
for notification and authorization, exemption and clearance,
application of the system of protection and safety including
justification, optimization, and dose limitation, and
justification and regulatory control of non-medical imaging.
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Revision BSS
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Draft 1.0
4. Emergency Exposure Situations
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Scope
Generic Requirements
Public exposure
Exposure of emergency workers,
Transition from an emergency exposure situation to
existing exposure situation
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Revision BSS
5. Existing Exposure Situations
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Scope
Generic Requirements
Public exposure
Occupational exposure
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Draft 1.0
Tailings
River
Landslip
Specific requirements for remediation of contaminated areas
(supersede WS-R-3), radon in homes and workplaces, and
radionuclides in commodities
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Landslip
Landslip
Revision BSS
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Draft 1.0
Schedules
• Schedule I: Exemption and Clearance
• Schedule II: Dose limits for planned exposure
situations
• Schedule III: Criteria for use in emergency
preparedness and response
• Schedule IV: Categorization of radioactive sources
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Revision BSS
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Draft 1.0
Issues requiring further work
• Section 1 Background: explanation of the system of protection and
safety:
• Level of detail on dose constraints / reference levels to be
included in section 1. Balance with other parts of the section 1
and guidance on selecting dose constraints / reference levels
will be provided in Safety Guides supporting the BSS
• Radon in planned exposure situations / existing exposure situations
• Issue about maximum value for the reference level for workplace
and for dwellings
• On-going work by ICRP
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Revision BSS
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Draft 1.0
Issues requiring further work
• Exemption and clearance levels
• Current BSS exemption levels apply for up to 1 ton of
material, and are also used as exemption levels for transport
of radioactive material.
• RS-G-1.7 levels apply to bulk quantities of material.
• Issue about whether the levels in the current BSS are still
required.
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Glossary
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BSS within the Long Term Structure of Safety Requirements
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BSS revision: milestones
● End June 2008 : Draft 1.0 completed
complete ‘clean’ draft, together with tracking and justification
of changes from SS115
● October / November 2008 – All Committees to conduct
full first review of Draft 1.0 : ongoing
● Workshop on Revision of BSS in Qatar
20 – 22nd January 2009
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What’s about Occupational Exposure ?
Structure (para. 3.62 – 3.106)
3. PLANNED
EXPOSURE
SITUATIONS
-Scope
-Responsibilities
Employers/Registrants/Licensees
Workers
Cooperation between E,R or L
Scope
Generic requirements
Occupational exposure
-Application of the system
for Protection and Safety
Areas (CA,SA, WP)
Individual monitoring
Exposure records
Workers Health surveillance
Education & Training
PPE
Public exposure
Medical exposure
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-Conditions of service
-Specific situations
Special compensatory arrangements
Female workers
Alternative employment
Conditions for young persons
Crew in space based activities
What’s about Occupational Exposure ?
Scope
• The requirements for occupational exposure in planned
exposure situations given in paras 3.62 to 3.106 apply to
occupational exposure due to a practice or source within a
practice, as referred to in paras 3.1–3.3, or due to the
performance of remedial work in an existing exposure
situation, as referred to in Section 5. In the case of
exposure to natural sources, such requirements apply, as
appropriate, only to the occupational exposures specified in
para. 3.4(a), (c) and (d).
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What’s about Occupational Exposure ?
Changes
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See “Scope”
3.77
3.98
3.101
3.104
Para 3.77
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{I.29} Employers, registrants and licensees
shall minimize the need to rely on administrative
controls and personal protective equipment for
achieving protection and safety by maximizing
the provision of well engineered controls and
satisfactory working conditions, in accordance
with the following hierarchy of prevention
principles:
Engineered controls,
Administrative controls,
Personal protective equipment.
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Para 3.98
Education and training
• {I.27 (a) (c) (d)} Employers, in cooperation with registrants
and licensees, shall:
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Provide to all workers adequate information on
the health risks due to their occupational exposure,
whether normal exposure or potential exposure,
adequate instruction and training on protection and safety
and adequate information on the significance for
protection and safety of their actions;
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Provide appropriate information, instruction and
training to those workers who could be affected by or
involved in the response to an emergency;
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Keep records of the training provided to
individual workers.
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Para 3.101
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{I.27 (b)} Employers, in cooperation with registrants and
licensees, shall provide to relevant female workers, such
as those who are liable to enter controlled or supervised
areas or who may undertake emergency duties,
appropriate information on:
(a) The risk to the embryo or foetus due to exposure of a
pregnant woman;
(b) The importance for a female worker of notifying her
employer as soon as she suspects that she is pregnant
[1];
(c)
The risk to an infant ingesting radioactive
substances
by
breast
feeding
[1] Notification of pregnancy cannot be a requirement on
a female worker in terms of these Standards, but it is
something that she should do so that her working
conditions may be modified accordingly.
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Para 104
Conditions for young persons
• {I.19} No person under the age of 16
years shall be subjected to occupational
exposure
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What’s about Occupational Exposure ?
Schedule II
DOSE LIMITS FOR PLANNED EXPOSURE SITUATIONS
II-1.For occupational exposure of workers over the age of 18 years, the dose
limits are:
(a) An effective dose of 20 mSv per year averaged over five consecutive years;
(b) An effective dose of 50 mSv in any single year;
(c) An equivalent dose to the lens of the eye of 150 mSv in a year;
(d) An equivalent dose to the extremities (hands and feet) or the skin [1] of 500
mSv in a year.
[1] The start of the averaging period shall be coincident with the first day of
the
relevant annual period after the date of entry into force of these Standards,
with no retroactive averaging.
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What’s about Occupational Exposure ?
Schedule II
DOSE LIMITS FOR PLANNED EXPOSURE SITUATIONS
II-2.
For occupational exposure of apprentices of 16 to 18 years of age who
are training for employment involving exposure to radiation and of
students of age 16 to 18 who are required to use sources in the course of
their studies, the dose limits are:
(a)
(b)
(c)
An effective dose of 6 mSv in a year;
An equivalent dose to the lens of the eye of 50 mSv in a year;
An equivalent dose to the extremities or the skin [2] of 150 mSv in a year.
[2] The equivalent dose limits for the skin apply to the average dose over 1 cm2 of
the most highly irradiated area of the skin. Skin dose also contributes to the
effective dose, this contribution being the average dose to the entire skin
multiplied by the tissue weighting factor for the skin.
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Since June 2008 …
• More than 1200 comments have been transmitted
to the IAEA*
• Mainly editorial issues
• Some key issues to be addressed by the
next RASSC/WASSC meeting (…this week !)
* Very relevant comments/proposals provided from ISOE BSS-WG through NEA channel
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Thank you for your attention
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