PM 2.5 levels were low today, but widespread, with Code Yellow (Moderate) levels of particulate matter being seen in the Pacific Southwest, the Mid-Atlantic, the Mississippi Valley, the Southeast, the Great Lakes region, and the Plains States (AirNow, top left). However, there were also Code Orange (Unsafe for Sensitive Groups), Code Red (Unsafe), and Code Purple (Very Unhealthy) levels in Oklahoma. The PM 2.5 spread along the East coast was most likely to the ongoing wildfires in the east and the mid-east. The spread of this smoke can be seen in NOAA's HMS map, top right. Light plumes of the smoke was also captured in NASA's MODIS Terra images, bottom left. Lastly, ozone levels were also mostly in Code Yellow levels today, with ozone being seen in the mid-west and parts of the East Coast.

PM 2.5 levels ranged from Code Yellow (Moderate) to Code Red (Unsafe) levels today, with these levels being spread around the Mid-Atlantic, the Mississippi Valley, the Plains States, the Southeast, the Rocky Mountain States, the Pacific Northwest, and the Pacific Southwest (AirNow, top left). This elevated PM 2.5 was at least somewhat due to smoke in the Northern parts of the nation, as shown in NOAA's HMS map, top right. This smoke was captured in NASA's MODIS Terra images, bottom left. Ozone levels were also from Code Yellow to Code Red levels, mostly being seen in the Eastern part of the nation.

PM 2.5 levels today were relatively low, with small amounts of Code Yellow (Moderate) levels of particulate matter being seen in the Rocky Mountain States, the Pacific Southwest, and the Great Lakes Region (AirNow, top left). There was also some Code Orange (Unsafe for Sensitive Groups) seen in the Rocky Mountain States. There was a large amount of smoke in the Plains States, as seen in NOAA's HMS map, top right. Despite smoke density ranging from heavy to light plumes, the PM levels did not rise to unhealthy levels. One fire that contributed to the amount of smoke in this region was the Buzzard Fire in New Mexico (InciWeb). This wildfire was human-caused and currently spans over 50,000 acres and counting. The smoke plumes were capture in NASA's MODIS Terra images, bottom left. Ozone levels, on the other hand, were more widespread, with Code Yellow and Code Orange levels being seen in the Plains States, the Pacific Southwest,and the Great Lakes region.

PM 2.5 levels were mostly low today, with Code Yellow (Moderate) levels being seen in the Southeast, the Mississippi Valley, the Southern Plains States, and California (AirNow, top left). The elevated PM 2.5 in the Pacific Southwestern region and the Plains States was most likely due to smoke in this general region, as seen in NOAA's HMS map, top right. The smoke in this area ranged from heavy to light plumes of smoke. This smoke could be seen in NASA's MODIS Terra images, bottom left. Ozone levels, however, were somewhat higher, with up to Code Red (Unsafe) levels being seen in the Pacific Southwest, the Plains States, and the Rocky Mountain States.

Air quality today ranged from Code Yellow (moderate) levels to Code Purple (Very Unhealthy) levels (AirNow, top left). The Code Orange (Unsafe for Sensitive Groups), Code Red (Unhealthy), and Code Purple levels of PM 2.5 were mostly seen in the Pacific Southwest and the Rocky Mountain States. Code Yellow levels, however, were more widespread, appearing in the Pacific Southwest, the Mississippi Valley, the Plains States, and the Southeast. The PM 2.5 in the Plains States region was mostly due to smoke from wildfires in this area, as seen in NOAA's HMS, map, top right. Ozone levels in the Plains States, the Pacific Southwest, and the Rocky Mountain States reached Code Yellow levels, with some Code Red levels in California and Arizona (weather.gov, bottom left). The elevated levels of Ozone in these areas were most likely due to increased temperatures in this area, as seen in weather.gov's temperature map, bottom right. The temperatures in this area reached highs of nineties and hundreds, which most likely contributed to the high levels of ozone today.

PM 2.5 levels were mostly low today, with mostly Code Yellow (Moderate) levels of PM 2.5 being seen in the Mississippi Valley and the Great lakes region, along with some in the Pacific Southwestern area, as seen in AirNow's PM 2.5 map, top left. This PM 2.5 was somewhat affected by the smoke being spread from wildfires in the Mississippi Valley, as seen in NOAA's HMS map, top right. Ozone levels, however, were more widespread and of higher levels. Both Code Yellow and Code Orange (Unsafe for Sensitive Groups) levels were seen in the Mississippi Valley, the Great Lakes region, some of the Plains States, the Pacific Southwest, and the Rocky Mountain States (weather.gov, bottom left). The rise in Ozone is due to the increased temperature in the summer months, and will most likely continue to increase as the summer progresses and temperatures rise.

PM 2.5 levels were very low today, with only Code Yellow (Moderate) levels being seen in the southern Plains States and the Pacific Southwest, along with some in the Mississippi Valley (AirNow, top left). This small amount of PM 2.5 was somewhat due to light plumes of smoke in the South, as seen in NOAA's HMS map, top right. Ozone levels, however, were very widespread, and rose up to Code Orange (Unsafe for Sensitive Groups) levels. The Code Yellow levels were in the Pacific Southwest, the Rocky Mountain States, the Plains States, and the Great lakes region. The Code Orange was in the Great lakes region and the Pacific Southwest (AirNow, bottom left). These elevated levels of PM 2.5 were somewhat due to increased temperatures in this area, as shown in NOAA's temperature map, bottom right. The temperatures in this area had highs in the nineties and hundreds, which most likely contributed to ozone production in these areas.