Facility Forum - Fall 2016 - 35


IF RADON ENTERS AN ENCLOSED
OR POORLY VENTILATED
SPACE IN A BUILDING, IT CAN
ACCUMULATE TO LEVELS THAT
CAN POSE A RISK TO HEALTH.

Exposure Guideline Limits
The current Canadian target guideline for Radon levels
within a home are 200 Bq/m3 (Becquerel). By definition, one
Becquerel is 1 disintegration per second. Action should be
considered for any location where the levels exceed the guidelines illustrated below.

Radon gas is approximately 7 to 8 times heavier than air
and will tend to accumulate in low, poorly ventilated areas,
such a crawl spaces or basements. Radon is sparingly soluble
in water.

200-600
Bq/m3 -
fix your home
within 2 years

Health Effects
The health effects related to radon exposure occur as a result
of long term exposures (chronic). In most low level exposures
the latency period for health effects is years or even decades.
Where is it Found

Above
600 Bq/m3 -
fix your home
within 1 year

Various types of Passive Radon Dosimeters can be used over
a time period from 3 days to as much as one year to sample
the indoor condition. Alternately a Radon Measurement and/or
a Mitigation Specialist can provide these services.
Do it yourself kits are available at reasonable costs. It is critical to follow the directions that come with your sampling kit.
Radon typically enters a building through the foundation
and crawl spaces. Preliminary remedial actions may include:
* Increasing the ventilation in the area
* Sealing cracks and openings in walls and doors
* Minimizing air infiltration around pipes and drains.
These actions can significantly reduce the radon levels in
your home or workplace.

Building Code Requirements
In 2010, National Building Codes required new homes to
have a "roughed-in" vent under the foundations and a vapor
barrier to reduce the radon entry.
* Bill 11 proposes change to Section 34 of the Building Code
Act and will require "any building that will be used as a
dwelling to be constructed in a manner and using materials
that minimize radon entry and facilitate post-construction
radon removal;" and require building owners to measure
radon levels in every workplace.
Minimizing the Risks
The first step is to arrange for testing appropriately and
immediately if you are in a high radon exposure risk area.
Various devices may be used including alpha track detectors,
electret ion chamber detectors and charcoal/liquid scintillation.

Summary
Workplaces that are located in poorly ventilated areas or
basements could have high radon levels depending on the
location in Ontario. Employers should assess the radon exposure potential to workers under their care. Regardless of the
changes to legislation, radon can cause adverse health effects
after prolonged exposure.
■

Public Services Health & Safety Association (PSHSA) works with
Ontario's public sector workers and employers, providing occupational health and safety training, resources and consulting to reduce
workplace risks and prevent workplace injuries and illnesses.
FACILITY FORUM | 35



Table of Contents for the Digital Edition of Facility Forum - Fall 2016

Industry Watch
Home Run Baseball Hits a Pedestrian
All Granites are Not the Same
Technically Speaking
Risk Management – City Found Not Liable in Skating Injury
Winterizing Pools
Member Profile – Ross Rankin, RA Centre, Ottawa
Use of Medical Marijuana at Work Poses Challenges for Employers
Health & Safety (PSHSA) – Radon - Bill 11 Updates
ORFA’s Original Energy Consultant Writes Memoirs
The Difference between Residential and Commercial Gas Detectors
Energy Champion – Beyond Measurement
Index of Advertisers
Facility Forum - Fall 2016 - ebelly1
Facility Forum - Fall 2016 - ebelly2
Facility Forum - Fall 2016 - cover1
Facility Forum - Fall 2016 - cover2
Facility Forum - Fall 2016 - 3
Facility Forum - Fall 2016 - 4
Facility Forum - Fall 2016 - 5
Facility Forum - Fall 2016 - 6
Facility Forum - Fall 2016 - 7
Facility Forum - Fall 2016 - 8
Facility Forum - Fall 2016 - Industry Watch
Facility Forum - Fall 2016 - Home Run Baseball Hits a Pedestrian
Facility Forum - Fall 2016 - 11
Facility Forum - Fall 2016 - 12
Facility Forum - Fall 2016 - 13
Facility Forum - Fall 2016 - All Granites are Not the Same
Facility Forum - Fall 2016 - 15
Facility Forum - Fall 2016 - 16
Facility Forum - Fall 2016 - 17
Facility Forum - Fall 2016 - 18
Facility Forum - Fall 2016 - 19
Facility Forum - Fall 2016 - 20
Facility Forum - Fall 2016 - Technically Speaking
Facility Forum - Fall 2016 - Risk Management – City Found Not Liable in Skating Injury
Facility Forum - Fall 2016 - 23
Facility Forum - Fall 2016 - Winterizing Pools
Facility Forum - Fall 2016 - 25
Facility Forum - Fall 2016 - 26
Facility Forum - Fall 2016 - 27
Facility Forum - Fall 2016 - 28
Facility Forum - Fall 2016 - Member Profile – Ross Rankin, RA Centre, Ottawa
Facility Forum - Fall 2016 - 30
Facility Forum - Fall 2016 - 31
Facility Forum - Fall 2016 - 32
Facility Forum - Fall 2016 - Use of Medical Marijuana at Work Poses Challenges for Employers
Facility Forum - Fall 2016 - Health & Safety (PSHSA) – Radon - Bill 11 Updates
Facility Forum - Fall 2016 - 35
Facility Forum - Fall 2016 - 36
Facility Forum - Fall 2016 - ORFA’s Original Energy Consultant Writes Memoirs
Facility Forum - Fall 2016 - 38
Facility Forum - Fall 2016 - 39
Facility Forum - Fall 2016 - 40
Facility Forum - Fall 2016 - The Difference between Residential and Commercial Gas Detectors
Facility Forum - Fall 2016 - 42
Facility Forum - Fall 2016 - 43
Facility Forum - Fall 2016 - Energy Champion – Beyond Measurement
Facility Forum - Fall 2016 - 45
Facility Forum - Fall 2016 - Index of Advertisers
Facility Forum - Fall 2016 - cover3
Facility Forum - Fall 2016 - cover4
Facility Forum - Fall 2016 - outsert1
Facility Forum - Fall 2016 - outsert2
Facility Forum - Fall 2016 - outsert3
Facility Forum - Fall 2016 - outsert4
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