Facility Forum - Fall 2016 - 34

Radon - HEALTH & SAFETY Bill 11 Updates Bill 11 is proposed legislation titled Radon Awareness and Prevention Act, 2014. It has currently passed the second reading. If enacted employers will be required to monitor for radon levels in any workplace in Ontario. This proposed legislation includes articles that would require the province to: * educate the public about radon gas exposure; * promote the measurement of radon levels in residential dwellings; * require the province to measure radon levels in every provincially owned building; * require building owners to measure radon levels in every workplace; * to take steps to remediate the exposure levels to levels below guidelines; and * amend the Building Code Act to require any dwelling be constructed to minimize radon entry and facilitate post-construction removal. What is Radon Radon is a colourless, odourless radioactive gas found naturally in the environment. It is produced by the natural breakdown of uranium commonly found in Ontario soils and rocks. As a gas, radon can easily move through small spaces in soils and other materials, allowing it to enter buildings. If radon enters an enclosed or poorly ventilated space in a building, it can accumulate to levels that can pose a risk to health. Risk Factors from Exposure Exposure to radon increases the risk of developing lung cancer. This has prompted concern that radon levels in some Ontario homes, workplaces and buildings may pose a health risk. The level of the risk depends on the amount of radon present, the length of time you are exposed and whether or not you smoke. Radon and the daughters are easily absorbed on to dust particles in the atmosphere, which may be deposited on the epithelial cells that line the respiratory tract when contaminated air is breathed. The radioactive daughters are characterized by relatively short half lives and release a significant amount of 34 | ONTARIO RECREATION FACILITIES ASSOCIATION Radioactivity - A Review The periodic table identities over one hundred distinct elements. These elements (atoms) are composed of protons and neutrons (which make up the nucleus) plus orbiting electrons described as probability clouds around the nucleus. Helium is an element and is sometimes represented as He4. The nucleus of Helium contains 2 protons and 2 neutrons, resulting in an atomic mass of 4 (superscript). Radioactivity or radioactive decay is a process where an unstable element loses energy by spontaneously emitting ionizing radiation. There are 3 types of ionizing radiation (alpha (α), beta (β), and gamma (γ)). Thus there are many types of radioactive decay (combinations) and some of these energy releases result in a nuclear transmutation. This means that the parent radioisotope is a completely different element than the daughter. Radium-226 is a radioactive element (created by a series of nuclear transmutations starting from Uranium-238). In addition to beta and gamma emissions, many parent elements will also undergoes radioactive transmutation by ejecting a Helium nucleus (2 protons and 2 neutrons (alpha particle). Radium-226 undergoes radioactive decay by emitting a helium nucleus. The result is a atom with an atomic mass that has been reduced by a weight of 4. The new element is Radon-222. Radon-222 is also an alpha emitter and the transmutations continue to a stable isotope of Lead (Pb-206). What does the term "Half-Life" (λ) mean? Radioactive disintegrations occur at different rates for different elements. Half life is the amount of time it takes for half of the original concentration to disappear. Cn = Co e-λT The half life for Radon-222 is 3.82 days. The half-life of an element is typically represented by the Greek letter Lambda (λ). ionizing radiation (76 per cent of the total irradiation is from the daughters). The ionizing radiation impacts on the lungs and respiratory tract increase the risk of lung cancers. It is estimated that about 16% of all lung cancers in Canada are related to radon exposure.

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
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Facility Forum - Fall 2016 - 4
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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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