Air Quality Awareness Days

By: Dr. Jeff Masters , 30. kesäkuuta 2005 klo 20:41 (GMT)

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The EPA has designated June 29 - July 1, "Air Quality Awareness Days". This designation is well-timed--the past two weeks have seen an unusual number of very hot days with light winds across large areas of the U.S. This, combined with June's high levels of UV light (which is needed to drive the chemical reactions that make smog), have conspired to produce some of the highest levels of air pollution across the U.S. in many years. Ground level ozone, the primary pollutant of concern in the summer, has been a particular problem. The EPA standard for ozone pollution is 80 ppb for an 8-hour period. If three or more violations of this standard occur in a year, the offending city must take action to reduce emissions or pay fines. There are a lot of cities that will be paying big bucks to reduce emissions, thanks to this June's hot weather. A sampling of who's been violating can be seen in the animation below. Everywhere the image is orange (AQI greater than 100), is an ozone air quality violation.



Chicago has had multiple sampling sites violate the ozone standard on 7 consecutive days.

Houston or Dallas (or both) have exceeded the ozone standard nearly every day the past week, with Houston posting a very unhealthy 103 ppb over an 8-hour period on June 28.

Denver recorded ozone violations at 2 locations on June 18.

California continues to lead the U.S. in air quality violations. If we take a look at the list of the 10 U.S. cities with the most ozone air pollution violations for 2004, five of the top seven cities are in California:

Number of 2004
City ozone violations
---------------------------------
Bakersfield,CA 103
Riverside, CA 88
Los Angeles, CA 65
Houston, TX 37
Sacramento, CA 25
Fresno, CA 23
Dallas, TX 20
Ventura, CA 17
Ft. Worth, TX 15
Orange County, CA 12

As part of Air Quality Awareness Days, the EPA urges everyone to be more aware of the types of air pollution their area encounters. They also have suggestions on what to do to protect your health during a high pollution event, and how you can cut down our contribution to air pollution levels. I highly recommend the EPA Airnow web site for those interested to learn more.

The good news is that overall, we have been making progress on reducing ozone pollution in the U.S. Nationally, 2003 levels were 9% lower than 1990 levels and 21% lower than 1980 levels. However, these statistics were unadjusted to reflect variations in meteorology, and the real ozone improvements are less than this. Certainly, this summer's hot weather will skew the statistics, perhaps so far as to make it so no net progress in ozone levels may be seen when compared to 10 years ago.

Dr. Jeff Masters

Hazy, Smoggy, Sunset (bigdawg)
Hazy Smoggy Sunset over Lincoln Hills Golf Course in Birmingham, Michigan. Temps were in the mid 90's again with very high humidity
Hazy, Smoggy, Sunset

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Viewing: 195 - 145

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195. STORMTOP
29. heinäkuuta 2005 klo 02:25 (GMT)
correction north of due west.......
194. STORMTOP
29. heinäkuuta 2005 klo 02:23 (GMT)
this is important the center has reformed south of 20 degrees...ita at 18 and 52...it seems to be moving west of due north and the trough is not effecting it..i think the northern leeward islands need to watch tis one very closely...
193. hurricanecrab
29. heinäkuuta 2005 klo 01:57 (GMT)
blogsurfing ye gods what madness....... why the 'ell not. HEY! I THINK I'M GETTING MY HAIR BACK! This time travel is good stuff!

Crabby is gone too ****
Member Since: 20.01.2005 Posts: 64 Comments: 9228
192. Floridagirl
29. heinäkuuta 2005 klo 01:57 (GMT)
Oh thanks...Somewhat new :) I read more than I post..
But you all keep me smiling with your posts..Not much time to join in, but I think you all are great.
191. Alec
29. heinäkuuta 2005 klo 01:56 (GMT)
im going to cj's blog right now. see yall there!
190. Alec
29. heinäkuuta 2005 klo 01:54 (GMT)
greetings Floridagirl! you must be new. at least that's what i think.
189. cjnew
29. heinäkuuta 2005 klo 01:54 (GMT)
yes ....to steves!!!!poof!!!
Member Since: 22.07.2005 Posts: 84 Comments: 2779
188. mobilehurricane
29. heinäkuuta 2005 klo 01:53 (GMT)
if it's not nice they will probably just send us somewhere else, they don't seem to have a problem with that
187. Alec
29. heinäkuuta 2005 klo 01:53 (GMT)
because their going to do something to that other blog while we're not looking.
185. hurricanecrab
29. heinäkuuta 2005 klo 01:53 (GMT)
haha this is a good thing. FUBAR = chaos
St. Simmons - haven't heard THAT phrase in a while. good stuff
Member Since: 20.01.2005 Posts: 64 Comments: 9228
184. Floridagirl
29. heinäkuuta 2005 klo 01:52 (GMT)
This is cool, found it on the Nasa web site..

http://www.ghcc.msfc.nasa.gov/GOES/goeseastnheir.html
183. Alec
29. heinäkuuta 2005 klo 01:52 (GMT)
my mistake. i didnt mean that. i must still be 19.
182. cjnew
29. heinäkuuta 2005 klo 01:52 (GMT)
really the age jokes must stop before you get me started...it wont be nice
Member Since: 22.07.2005 Posts: 84 Comments: 2779
181. mobilehurricane
29. heinäkuuta 2005 klo 01:52 (GMT)
i wonder why they choose to send us back to this blog every time?
180. Alec
29. heinäkuuta 2005 klo 01:51 (GMT)
so i guess i wasnt born yet. its wayyyyy too early.
179. cjnew
29. heinäkuuta 2005 klo 01:51 (GMT)
me to...its funny though when i talk to myself i say way more
Member Since: 22.07.2005 Posts: 84 Comments: 2779
178. mobilehurricane
29. heinäkuuta 2005 klo 01:51 (GMT)
weall just got a month younger...i guess that's cool...except that would mean some people are getting close to 12 again
177. Alec
29. heinäkuuta 2005 klo 01:50 (GMT)
hope not. i usually have conversations with myself when im ignored.
176. cjnew
29. heinäkuuta 2005 klo 01:50 (GMT)
oh that was really funny!!!
Member Since: 22.07.2005 Posts: 84 Comments: 2779
174. hurricanecrab
29. heinäkuuta 2005 klo 01:49 (GMT)
I kinda fancy time paradox..... fits into string theory in a benevolent way... am I talking to myself? Or an older version of me?
Member Since: 20.01.2005 Posts: 64 Comments: 9228
173. Alec
29. heinäkuuta 2005 klo 01:49 (GMT)
lol
172. cjnew
29. heinäkuuta 2005 klo 01:49 (GMT)
i meant my post be fore it...have a look at it up there
Member Since: 22.07.2005 Posts: 84 Comments: 2779
171. Alec
29. heinäkuuta 2005 klo 01:49 (GMT)
you're here too hurricanecrab.
170. mobilehurricane
29. heinäkuuta 2005 klo 01:48 (GMT)
you're right...who knows? maybe they separated us by age groups and we are the only ones here...but what is cj doing here...jk!!!lol
169. Alec
29. heinäkuuta 2005 klo 01:48 (GMT)
you messed it up cj? didnt that happen a couple days ago when you reached 700?
168. hurricanecrab
29. heinäkuuta 2005 klo 01:47 (GMT)
I haven't had anything like this happen to me since the '70s
Member Since: 20.01.2005 Posts: 64 Comments: 9228
167. Alec
29. heinäkuuta 2005 klo 01:47 (GMT)
they'll probably be sent back to the 1967 blog. so dont bank on it.
166. cjnew
29. heinäkuuta 2005 klo 01:46 (GMT)
wow i messed that post up!!!!
Member Since: 22.07.2005 Posts: 84 Comments: 2779
165. mobilehurricane
29. heinäkuuta 2005 klo 01:46 (GMT)
i wonder when everyone else will show up here too?
164. cjnew
29. heinäkuuta 2005 klo 01:46 (GMT)
its cux we arent neccesaril in the past we're just writining into it
Member Since: 22.07.2005 Posts: 84 Comments: 2779
163. Alec
29. heinäkuuta 2005 klo 01:46 (GMT)
they just love splitting us up. im going to complain again to jeff until its fixed.
162. cjnew
29. heinäkuuta 2005 klo 01:45 (GMT)
maaaan!!! i want to go back
Member Since: 22.07.2005 Posts: 84 Comments: 2779
161. mobilehurricane
29. heinäkuuta 2005 klo 01:45 (GMT)
our time is the same
160. Alec
29. heinäkuuta 2005 klo 01:44 (GMT)
no i was here first.
159. mobilehurricane
29. heinäkuuta 2005 klo 01:44 (GMT)
guess not!
158. mobilehurricane
29. heinäkuuta 2005 klo 01:43 (GMT)
am i the first one to be back here again?!!!!!!!!
157. cjnew
29. heinäkuuta 2005 klo 01:43 (GMT)
im here to
Member Since: 22.07.2005 Posts: 84 Comments: 2779
156. Alec
29. heinäkuuta 2005 klo 01:43 (GMT)
hey why am i here????its not jun30.
155. Alec
27. heinäkuuta 2005 klo 02:01 (GMT)
well here i am again back in time june30. its almost august. this is driving me crazy.
154. cjnew
26. heinäkuuta 2005 klo 04:46 (GMT)
that magical effect lacks magic and effect well .............CJ..........OUT!!
Member Since: 22.07.2005 Posts: 84 Comments: 2779
153. cjnew
26. heinäkuuta 2005 klo 04:45 (GMT)
wow the other blog is back but it only remembered to 384 and ironically enough i was the last comment saying how i messed it*it* up
Member Since: 22.07.2005 Posts: 84 Comments: 2779
152. cjnew
26. heinäkuuta 2005 klo 04:35 (GMT)
oh well i was just about to get back on and everyone decides to hit the hay.....i must say i feel like im rubbing off on some people... well if anyone is still on i'll be watching.....i was going to see if i could do that magical effect that was mentioned earlier..but i think i was too late so well...goodnight,goodnight to all insight maybe tomorrow Alec and stormtop will fight..so see ya tomorrow and i think everyone on this website......thanks for being so cool to me everyone!!! i dont know if that was considered a poem but the words rhymed.
Member Since: 22.07.2005 Posts: 84 Comments: 2779
151. Alec
26. heinäkuuta 2005 klo 04:11 (GMT)
good nite yall! tomorrow ill probably wake up in the 1940's. lol -nite
150. weatherfanatic
26. heinäkuuta 2005 klo 04:09 (GMT)
Well, I have to get an early start tomorrow. I better hit the sack. Check in tomorrow. Good night all!
149. Alec
26. heinäkuuta 2005 klo 04:08 (GMT)
yah, jedkins. funny
148. Jedkins
26. heinäkuuta 2005 klo 04:07 (GMT)
Im ganna git to bed Night Y'all,anyway liked my random insane post?
147. Alec
26. heinäkuuta 2005 klo 04:06 (GMT)
someone sent me an email with title "stormtop".
figures you know?
146. mobilehurricane
26. heinäkuuta 2005 klo 00:02 (GMT)
i guess i'm going to read for a while. i got this book called Big Weather and it is about tornado chasers and the new IMAX film...it's pretty interesting. talk to everyone later. mobilehurricane out!
145. weatherfanatic
26. heinäkuuta 2005 klo 04:00 (GMT)
Thats what I'm thinking Mobile, the aftermath.........unbelievable

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About JeffMasters

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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