Important: This information is published as soon as the values are detected, and does not imply that the data have passed quality assurance validation procedures.
The air quality standard for particulate matter, designed to protect public health with an adequate margin of safety, is 150 micrograms per cubic meter (µg/m3), averaged over 24 hours. For concentrations greater than 150µg/m3, the air is considered to be unhealthful.
| Metro Areas | Related Info | ||
| Today's Readings (µg/m3, 24 hour moving average) at the Georgia Tech Station |
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|---|---|---|---|---|---|---|
| Hours 1-8 |
Hours 9-16 |
Hours 17-24 |
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| 01 | 24 | 09 | 25 | 17 | ||
| 02 | 24 | 10 | 24 | 18 | ||
| 03 | 24 | 11 | 24 | 19 | ||
| 04 | 24 | 12 | 24 | 20 | ||
| 05 | 25 | 13 | 24 | 21 | ||
| 06 | 25 | 14 | 23 | 22 | ||
| 07 | 25 | 15 | 23 | |||
| 08 | 25 | 16 | 24 | |||