Particulate levels on July 22 highest measured in county Dust storm the cause - Tucson Local Media: El Sol

Particulate levels on July 22 highest measured in county Dust storm the cause

Print
Font Size:
Default font size
Larger font size

Posted: Tuesday, August 4, 2009 11:00 pm

Remember Wednesday, July 22, when the mountains disappeared behind a wall of dust?

The Pima County Department of Environmental Quality reports that on that day, the department's air quality monitors recorded the highest levels of particulate matter ever monitored in Pima County.

Dusty air that day was attributable to a natural event, a dust storm near Casa Grande. An air quality advisory was issued that morning by the department. It collected filters from monitoring sites the next day to begin the process required by the U.S. Environmental Protection Agency to determine the accurate weight of the particulate matter captured on the filters.

The PM10 (particulate matter that is 10 microns or less in diameter) reading at the Orange Grove monitoring site for Wednesday, July 22 was 270 micrograms/cubic meter of air. The EPA health standard for PM10 is 150 micrograms/cubic meter.

"In 2008, 96 percent of the time, our levels of PM10 are in the healthy range," said Beth Gorman of PDEQ. "The days when there are high winds or forest fires tend to be the times that we have unhealthy levels of particulates in our air and those at risk need to be cautious."

Scientific studies have linked particle pollution exposure to a variety of health problems.

PDEQ currently monitors for five different types of air pollution.

Information on particulate matter (PM10 and PM2.5), ground level ozone, and other air pollutants can be obtained from special instantaneous monitors at the PDEQ http://AirInfoNow.org">AirInfoNow.org website or by calling 882-4AIR.

© 2016 Tucson Local Media. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

More about

More about

Welcome to the discussion.

Clutch - X-Ray Visions

More Featured Videos
Spacer4px

Follow us on Facebook

Online poll

The Marana capital improvements improvements are expected to take years to complete as Marana finds the best plan of action to complete the projects and fund the improvements. Do you think this is a good idea?

The town of Marana is looking at ways to do capital improvements to the oldest neighborhoods in Marana. Over the next few months the town will survey older neighborhoods and see what amenities they need and form a plan to make sure neighborhoods have paved roads, sidewalks, adequate drainage, lighting and even pocket parks. “We want to make sure that every neighborhood has a base standard for infrastructure,” said Marana Town Manager Gilbert Davidson. The improvements are expected to take years to complete as Marana finds the best plan of action to complete the projects and fund the improvements. Do you think this is a good idea?

Total Votes: 13

Loading…

How do you feel about a potential memorial art project to honor our community’s bravest men and women?

During the Jan. 20 town council meeting, a vote was unanimously passed to look into the feasibility of a “Memorial Public Art Project,” at the request of Oro Valley resident Dick Eggerding to potentially be placed somewhere in the town to honor military veterans and first responders. Though no concrete plans were then ready to act on, there was a show of overwhelming support for such project from residents and staff alike during the council meeting. In an effort to poll to community at-large, The Explorer would like to know how you feel about a potential memorial art project to honor our community’s bravest men and women.

Total Votes: 24

Loading…