BC Environmental and Occupational Health Research Network
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Search: Government of Canada
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Communicating the Value of Health Research
- Institution & Unit: Government of Canada >> Canadian Institute for Health Research
- Resource Category: Knowledge Translation and Exchange Information Links
- Resource Location: Canada
Moving Population and Public Health Knowledge Into Action
- Institution & Unit: Government of Canada >> Canadian Institutes for Health Research
- Resource Category: Knowledge Translation and Exchange Information Links
Ecological Monitoring and Assessment Network, Canada-wide
- Institution: Government of Canada
- Resource Location: Canada
Allergen (Allergy, Genes and Environment Network through the Networks of Centres of Excellence)
- Institution: Government of Canada
- Resource Location: Canada
Canadian Centre for Occupational Health and Safety
- Institution: Government of Canada
- Resource Location: Canada
The 30-30 lightning rule
- Institution & Unit: Government of Canada >> Environment Canada
- Resource Category: Websites of Interest
- Resource Location: International
Environment Canada has been actively promoting the 30-30 lightning rule for the past number of years. If there is 30 seconds or less between the flash of lightning and the rumble of thunder, you should seek the best shelter available. The second, and equally important, part of this rule is that you should remain in that shelter for a full 30 minutes after the last flash of lightning or rumble of thunder since lightning can travel from the back end of the storm for a number of kilometres. Remember, even though skies may begin to clear in the wake of a thunderstorm, lightning is still a threat for a full 30 minutes after that last flash or rumble. If no solidly constructed building is available for shelter, a metal-topped car or truck will provide lightning protection provided you are not touching anything metal inside the vehicle. If caught outside away from buildings or vehicles, you should avoid tall objects such as trees or light standards and things like metal fences. You should seek a low-lying area and crouch down on the balls of your feet to minimize contact with the ground.
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