90-degree temperatures prompt ozone action day in Ann Arbor
With weekend high temperatures expected to hover around 90 in the Ann Arbor area, the Michigan Department of Environmental Quality has declared Sunday to be an ozone action day.
The department urges people, especially those with respiratory conditions such as asthma, to avoid prolonged outdoor exertion.
People and businesses are also urged to avoid activities that lead to ozone formation. These activities include: refueling vehicles, using gasoline powered lawn equipment and using charcoal lighter fluid.
The forecast calls for mostly sunny conditions and highs near 90 degrees Saturday and Sunday.
Besides Washtenaw County, other counties included in the ozone action day advisory are Genesee, Lapeer, Lenawee, Livingston, Macomb, Monroe, Oakland, Shiawassee, St. Clair and Wayne.
This is the second ozone action day declared this year in the Ann Arbor area. The first was on May 24.
For updated forecasts and weather conditions any time, check AnnArbor.com's weather page.
Comments
BobbyJohn
Tue, Jun 12, 2012 : 3:09 p.m.
And yet there were many downtown businesses with their unnecessary exterior lights on during the day, like they always do. Such as Cafe Felix, Starbucks and Jolly Pumpkin
Commoncents
Sun, Jun 10, 2012 : 11:19 p.m.
Hahahahaha
Unusual Suspect
Sun, Jun 10, 2012 : 4:40 p.m.
If they want us to not do certain things on these days, shouldn't they be called "Ozone INACTION Days?"
Madeleine Borthwick
Sat, Jun 9, 2012 : 8:55 p.m.
Ack. give me snow, give me cold, give me gale-force winds howling around me(keep the freezing rain though), but keep this hot/humid/miserable/oppressive/fetid miasma....... I'M MEEELLLTTTIIIINNNNNNNGGGGG.....
grimmk
Sat, Jun 9, 2012 : 7:52 p.m.
Humidity? Weather Underground says it is 37%.
KMHall
Sun, Jun 10, 2012 : 5:27 p.m.
I heard that lack of wind is a factor.
Cindy Heflin
Sat, Jun 9, 2012 : 8:45 p.m.
I've altered the headline because it does appear that humidity level is not expected to be particularly high this weekend although ozone action days do often coincide with high levels of heat and humidity.
tdw
Sat, Jun 9, 2012 : 6:44 p.m.
A2.com.....Thanks that just reminded me, I have a rack of ribs to BBQ
MRunner73
Sat, Jun 9, 2012 : 6:25 p.m.
What is the threshold level for unhealthy air? I clicked on the ozone action day link and clicked on the link to the statement the MDEQ put out, yet nothing specific. If the reading level is 100, then we should know. I don't see any reason to cut down on refueling on a Sunday. People with heart or respitory issues should be cautitous and remain indoors during the midday and afternoon hours, otherwise, life goes on. The intense sun helps convert some CO2 molecules to break down and bond with O2 molecules to make O3 molecules which is ozone. Water, H2O molecules even in vapor from such as humidity do not readily break down because of a strong chemical bond with th two hydrogen molecules. Clear skies with with strong ambient sun can produce as much ozone as the combination of heat and humidity. Higher wind speeds also help mix out the air better than lower wind speed days. Hot and humid days that are cloudy produce less ozone as well.
Dog Guy
Sat, Jun 9, 2012 : 4:40 p.m.
"This is the second ozone action day declared this year in the Ann Arbor area," obviously due the increased level of smug from all the Priuses in town.
KMHall
Sun, Jun 10, 2012 : 5:26 p.m.
The little particles of hate are a bit tiresome IMO.
Unusual Suspect
Sun, Jun 10, 2012 : 4:39 p.m.
I got it.
Robert Granville
Sat, Jun 9, 2012 : 5:40 p.m.
I don't think people are getting your reference.