Ozone protects us … but it’s deadly, nonetheless.<\/p>\n
Ozone is crucial to life on Earth. At concentrations as modest as only eight parts per million, the ozone in the stratosphere blocks much of the sun’s harmful ultraviolet radiation.<\/p>\n
Closer to the ground, however, it can be detected by some people in concentrations as low as 10 parts per billion – and it can be a serious problem, especially for the elderly, small children, and anyone with breathing difficulties caused by lung or heart problems or asthma.<\/p>\n
All of that would only be an interesting bit of trivia, if it weren’t for the fact that hot weather – such as we are currently experiencing – coupled with normal to high levels of air pollution can cause a build-up of ground-level ozone.<\/p>\n
And that, according to Metro Vancouver air quality monitors, is what has been happening, particularly in the eastern parts of the region, during the current hot spell.<\/p>\n
The high concentrations of ground-level ozone are expected to persist for several days, probably until the current weather system moves along.<\/p>\n
The Air Quality Advisory suggests avoiding strenuous outdoor activities during mid-afternoon, when ozone levels are highest. Exposure is particularly a concern for infants, the elderly, and those who have underlying medical conditions, as noted.<\/p>\n
If you are experiencing symptoms such as chest discomfort, shortness of breath, coughing, or wheezing, follow the advice of your health care provider, and stay indoors in air-conditioned spaces.<\/p>\n
While you’re at it, pay attention to the other dangers of unusually hot weather, like dehydration and the heat itself.<\/p>\n
Drink plenty of liquids, especially water. Try to keep cool. If you don’t have an air conditioner at home, find a mall or public building to get away from the heat.<\/p>\n
And be mindful of the dangers of kids and pets left in hot cars.<\/p>\n
http:\/\/www.thenownews.com\/opinion\/ozone-giveth-and-ozone-taketh-away-1.1207839<\/p>\n","protected":false},"excerpt":{"rendered":"
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