Health and Safety Executive Health and Safety Executive Radon - BSS Directive - HSE Proposals Rob...
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Transcript of Health and Safety Executive Health and Safety Executive Radon - BSS Directive - HSE Proposals Rob...
Health and Safety Executive
Health and Safety Executive
Radon - BSS Directive -
HSE Proposals
Rob Wellens
OEWG Meeting 11 November 2014
Topics covered
• There are four areas of proposed change:– Separate dose recording– Introduction of a “time integrated radon
exposure value”– Annual average, not a 24 hr
measurement– When to notify HSE
RN1. Time integrated radon exposure value (TIREV)
What is TIREV?
• BSSD introduces the concept of TIREV for workplaces above 300Bq m-3
• Equivalent of 6mSv effective dose
• An easy calculation for dutyholders to see whether their measurement equates to 6mSv
• Not envisaged as a regulatory requirement– An aid for dutyholders
RN1. Time integrated radon exposure value (TIREV) (2)
Current requirement
• None
BSS requirement
• Article 35.2 allows for the use of a TIREV
RN1. Time integrated radon exposure value (TIREV) (3)
HSE Proposal
• To introduce a TIREV
Preliminary estimated impact
• Familiarisation costs
RN2. Separate Dose Recording
Current requirement
• IRR99 requires an individual dose record, but does not require that radon doses be recorded separately on that dose record.
BSS requirement
• Article 43.4 requires an individual dose record records occupational radon doses separately
RN2. Separate Dose Recording (2)
HSE Proposal
• To require separate dose recording
Preliminary estimated impact
• Any ADS approved to record radon doses would need to be able to demonstrate how the radon doses are recorded separately
• HSE is looking to work with these ADSs to establish the costs involved
RN3. Annual Average
Current requirement
• IRR99 sets a level of 400Bq m-3 in a 24 hour period
BSS requirement
• Article 54.1 sets a level of 300Bq m-3 as an annual average
RN3. Annual Average (2)
HSE Proposal
• To use an annual average
• HSE estimates that IRR99 level equates to ~270Bq m-3 annual average
• Radon is a chronic exposure issue, so annual average makes more sense
RN3. Annual Average (3)
Preliminary estimated impact
• Easier to understand and use
• A very small number of dutyholders may come out of scope
• Some familiarisation costs
RN4. Notification
Current requirement
• IRR99 requires HSE to be notified if levels above 400Bq m-3 in a 24 hour period are measured
BSS requirement
• Article 54.3 requires notification if dutyholders cannot remediate below an annual average of 300Bq m-3
RN4. Notification (2)
HSE Proposal
• To require notification after remediation
• To make radon risk assessment and measurement requirements explicit
RN4. Notification (3)
Preliminary estimated impact
• Smaller number of notifications to HSE
• Greater clarity for dutyholders regarding regulatory requirements
• Neutral effect on measurement and remediation, as this has always been required
• Some familiarisation costs
Questions / Comments?
• To re-emphasise– These are HSE’s preliminary proposals
on how to implement the BSSD (radon requirements)
• Do you have any questions / comments on the preliminary proposals
Involvement - Joining the Radiation Community of Interest
• If you want to be invited to join, please contact -