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Testing recently received monitors in Iowa City

Posted on January 15th, 2016

This week we received some new Airbeam particulate monitor sensors, and the Android tablets to go with them.  Air pollution levels were (for Iowa City) higher than recent days (they peaked at 39 micrograms of fine particulate matter per cubic meter of air around noon).  So I decided to go out and test our monitors.  These pictures show the result.  Not a scientific collocated testing, but I am very pleased with the result.   Based on the local official (state-run) monitor — I would have hoped to see between 10 and 20 on the Airbeam monitor, and we did.  And insider is (as it should be) cleaner than outside.  The temperatures aren’t the actual indoor or outdoor temperatures — the sensor response time for temperature and relative humidity is a bit slow.  It was really about 25 degrees F out.  (Charlie Stanier charles-stanier@uiowa.edu)

Taken at 4 PM on January 15, the airbeam sensor is reading 4 micrograms per cubic meter of air.

Taken at 4 PM on January 15, the airbeam sensor is reading 4 micrograms per cubic meter of air.

Taken at 4 PM on January 15 in Iowa City Iowa, the monitor reads 13 micrograms per cubic meter of air

Taken at 4 PM on January 15 in Iowa City Iowa, the monitor reads 13 micrograms per cubic meter of air

The state of Iowa runs a monitor in Iowa City and at 4 PM on January 20, it was reading about 15 micrograms per cubic meter of air.

The state of Iowa runs a monitor in Iowa City and at 4 PM on January 20, it was reading about 15 micrograms per cubic meter of air.