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Primary air pollutant in the Petrolia area:
OZONE - 31 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 17 Good
Current Conditions at 3 p.m. EDT Friday afternoon: Skies are mostly sunny with temperatures climbing to around 70. Fine particle pollution (PM2.5) and ozone concentrations remain in the good range. A major change in the weather is coming with the passage of a cold front over the weekend, with chilly air to follow Sunday and Monday. Here are the forecast details: *** Saturday’s forecast: More clouds than sunshine and still on the warm side Saturday. Showers and stronger thunderstorms are likely in the afternoon and evening out ahead of a strong cold front coming out of the Midwest. With expected vigorous mixing, precipitation, and cloud cover, ozone and PM2.5 levels will remain in the good range. *** Sunday’s forecast: Clouds and limited sun Sunday, breezy and much cooler with highs only reaching the upper 40s. Good air quality will be the rule. A rain shower can occur late in the day, and a couple of snow showers can occur overnight. *** Monday’s forecast: Monday will be the chilliest day of the forecast period with clouds and sunshine and highs only in the middle 40s. Brisk mixing will promote low levels of air pollutants. Frost and freezing temperatures are likely Monday night. *** Extended forecast: A warming trend will commence Tuesday and Wednesday with highs back in the lower 70s by late in the week. Air quality may deteriorate some by mid-week, but remain good overall.---McAuliffe
Primary Pollutant: OZONE - 44 Good
Secondary Pollutant: PM2.5 - 35 Good
Primary Pollutant: OZONE - 40 Good
Secondary Pollutant: PM2.5 - 30 Good
Primary Pollutant: OZONE - 42 Good
Secondary Pollutant: PM2.5 - 30 Good
Primary Pollutant: OZONE - 48 Good
Secondary Pollutant: PM2.5 - 36 Good
Primary Pollutant: OZONE - 0 Good
Secondary Pollutant: PM2.5 - 0 Good