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Monitoring Total Particulate Matter

We measure the total particulate mass concentration in the air on a routine basis as well as during incidents that may affect ambient air.

Raw 24-Hour Averages Data for Old White Rock Fire Station

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View 30-Minute Averages

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24-hour averages provide an indication of the current air concentrations.

They can be compared to the EPA standards of 35 µg/m3 (PM 2.5) and 150 µg/m3 (PM 10)

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8.8738 µg/m3 on Saturday, April 30, 2016 1:00 AM 8.5514 µg/m3 on Saturday, April 30, 2016 1:30 AM 8.4867 µg/m3 on Saturday, April 30, 2016 2:00 AM 8.3762 µg/m3 on Saturday, April 30, 2016 2:30 AM 8.1853 µg/m3 on Saturday, April 30, 2016 3:00 AM 7.4502 µg/m3 on Saturday, April 30, 2016 3:30 AM 6.7259 µg/m3 on Saturday, April 30, 2016 4:00 AM 6.4106 µg/m3 on Saturday, April 30, 2016 4:30 AM 6.3407 µg/m3 on Saturday, April 30, 2016 5:00 AM 6.3372 µg/m3 on Saturday, April 30, 2016 5:30 AM 6.3596 µg/m3 on Saturday, April 30, 2016 6:00 AM 6.2825 µg/m3 on Saturday, April 30, 2016 6:30 AM 6.2825 µg/m3 on Saturday, April 30, 2016 7:00 AM 6.3322 µg/m3 on Saturday, April 30, 2016 7:30 AM 6.3437 µg/m3 on Saturday, April 30, 2016 8:00 AM 6.2925 µg/m3 on Saturday, April 30, 2016 8:30 AM 6.3942 µg/m3 on Saturday, April 30, 2016 9:00 AM 6.2916 µg/m3 on Saturday, April 30, 2016 9:30 AM 6.2559 µg/m3 on Saturday, April 30, 2016 10:00 AM 6.3083 µg/m3 on Saturday, April 30, 2016 10:30 AM 6.1699 µg/m3 on Saturday, April 30, 2016 11:00 AM 6.2295 µg/m3 on Saturday, April 30, 2016 11:30 AM 5.8266 µg/m3 on Saturday, April 30, 2016 12:00 PM 5.8564 µg/m3 on Saturday, April 30, 2016 12:30 PM 5.7405 µg/m3 on Saturday, April 30, 2016 1:00 PM 5.6748 µg/m3 on Saturday, April 30, 2016 1:30 PM 5.5292 µg/m3 on Saturday, April 30, 2016 2:00 PM 5.6393 µg/m3 on Saturday, April 30, 2016 2:30 PM 5.8312 µg/m3 on Saturday, April 30, 2016 3:00 PM 5.5701 µg/m3 on Saturday, April 30, 2016 3:30 PM 5.2316 µg/m3 on Saturday, April 30, 2016 4:00 PM 5.1028 µg/m3 on Saturday, April 30, 2016 4:30 PM 5.0579 µg/m3 on Saturday, April 30, 2016 5:00 PM 4.9086 µg/m3 on Saturday, April 30, 2016 5:30 PM 4.8008 µg/m3 on Saturday, April 30, 2016 6:00 PM 4.8513 µg/m3 on Saturday, April 30, 2016 6:30 PM 4.8574 µg/m3 on Saturday, April 30, 2016 7:00 PM 4.776 µg/m3 on Saturday, April 30, 2016 7:30 PM 4.7107 µg/m3 on Saturday, April 30, 2016 8:00 PM 4.5729 µg/m3 on Saturday, April 30, 2016 8:30 PM 5.0201 µg/m3 on Saturday, April 30, 2016 9:00 PM 5.2191 µg/m3 on Saturday, April 30, 2016 9:30 PM 5.3693 µg/m3 on Saturday, April 30, 2016 10:00 PM 5.4313 µg/m3 on Saturday, April 30, 2016 10:30 PM 5.4718 µg/m3 on Saturday, April 30, 2016 11:00 PM 5.4238 µg/m3 on Saturday, April 30, 2016 11:30 PM 5.4811 µg/m3 on Sunday, May 1, 2016 12:00 AM 5.5241 µg/m3 on Sunday, May 1, 2016 12:30 AM 5.5554 µg/m3 on Sunday, May 1, 2016 1:00 AM 5.6659 µg/m3 on Sunday, May 1, 2016 1:30 AM 5.7404 µg/m3 on Sunday, May 1, 2016 2:00 AM 5.5938 µg/m3 on Sunday, May 1, 2016 2:30 AM 5.4961 µg/m3 on Sunday, May 1, 2016 3:00 AM 5.4509 µg/m3 on Sunday, May 1, 2016 3:30 AM 5.3862 µg/m3 on Sunday, May 1, 2016 4:00 AM 5.4085 µg/m3 on Sunday, May 1, 2016 4:30 AM 5.4003 µg/m3 on Sunday, May 1, 2016 5:00 AM 5.3796 µg/m3 on Sunday, May 1, 2016 5:30 AM 5.352 µg/m3 on Sunday, May 1, 2016 6:00 AM 5.3282 µg/m3 on Sunday, May 1, 2016 6:30 AM 5.2769 µg/m3 on Sunday, May 1, 2016 7:00 AM 5.1606 µg/m3 on Sunday, May 1, 2016 7:30 AM 5.0926 µg/m3 on Sunday, May 1, 2016 8:00 AM 5.1238 µg/m3 on Sunday, May 1, 2016 8:30 AM 5.0895 µg/m3 on Sunday, May 1, 2016 9:00 AM 5.1086 µg/m3 on Sunday, May 1, 2016 9:30 AM 5.1719 µg/m3 on Sunday, May 1, 2016 10:00 AM 5.2393 µg/m3 on Sunday, May 1, 2016 10:30 AM 5.3081 µg/m3 on Sunday, May 1, 2016 11:00 AM 5.3984 µg/m3 on Sunday, May 1, 2016 11:30 AM 5.4406 µg/m3 on Sunday, May 1, 2016 12:00 PM 5.3223 µg/m3 on Sunday, May 1, 2016 12:30 PM 5.4148 µg/m3 on Sunday, May 1, 2016 1:00 PM 5.4576 µg/m3 on Sunday, May 1, 2016 1:30 PM 5.4658 µg/m3 on Sunday, May 1, 2016 2:00 PM 5.3885 µg/m3 on Sunday, May 1, 2016 2:30 PM 4.9616 µg/m3 on Sunday, May 1, 2016 3:00 PM 5.225 µg/m3 on Sunday, May 1, 2016 3:30 PM 5.2677 µg/m3 on Sunday, May 1, 2016 4:00 PM 5.3698 µg/m3 on Sunday, May 1, 2016 4:30 PM 5.2603 µg/m3 on Sunday, May 1, 2016 5:00 PM 5.3171 µg/m3 on Sunday, May 1, 2016 5:30 PM 5.3501 µg/m3 on Sunday, May 1, 2016 6:00 PM 5.1788 µg/m3 on Sunday, May 1, 2016 6:30 PM 5.0671 µg/m3 on Sunday, May 1, 2016 7:00 PM 5.0929 µg/m3 on Sunday, May 1, 2016 7:30 PM 5.0274 µg/m3 on Sunday, May 1, 2016 8:00 PM 5.0116 µg/m3 on Sunday, May 1, 2016 8:30 PM 4.5283 µg/m3 on Sunday, May 1, 2016 9:00 PM 4.2542 µg/m3 on Sunday, May 1, 2016 9:30 PM 4.1283 µg/m3 on Sunday, May 1, 2016 10:00 PM 4.0961 µg/m3 on Sunday, May 1, 2016 10:30 PM 4.0877 µg/m3 on Sunday, May 1, 2016 11:00 PM 4.1502 µg/m3 on Sunday, May 1, 2016 11:30 PM 4.1433 µg/m3 on Monday, May 2, 2016 12:00 AM 4.0517 µg/m3 on Monday, May 2, 2016 12:30 AM 4.009 µg/m3 on Monday, May 2, 2016 1:00 AM 3.8965 µg/m3 on Monday, May 2, 2016 1:30 AM 3.8113 µg/m3 on Monday, May 2, 2016 2:00 AM 3.9215 µg/m3 on Monday, May 2, 2016 2:30 AM 3.9707 µg/m3 on Monday, May 2, 2016 3:00 AM 3.971 µg/m3 on Monday, May 2, 2016 3:30 AM 4.0205 µg/m3 on Monday, May 2, 2016 4:00 AM 4.0179 µg/m3 on Monday, May 2, 2016 4:30 AM 3.9873 µg/m3 on Monday, May 2, 2016 5:00 AM 3.9971 µg/m3 on Monday, May 2, 2016 5:30 AM 3.9889 µg/m3 on Monday, May 2, 2016 6:00 AM 4.0346 µg/m3 on Monday, May 2, 2016 6:30 AM 4.0324 µg/m3 on Monday, May 2, 2016 7:00 AM 4.0484 µg/m3 on Monday, May 2, 2016 7:30 AM 4.0953 µg/m3 on Monday, May 2, 2016 8:00 AM 4.1683 µg/m3 on Monday, May 2, 2016 8:30 AM 4.1307 µg/m3 on Monday, May 2, 2016 9:00 AM 4.1335 µg/m3 on Monday, May 2, 2016 9:30 AM 4.0843 µg/m3 on Monday, May 2, 2016 10:00 AM 4.0283 µg/m3 on Monday, May 2, 2016 10:30 AM 4.0369 µg/m3 on Monday, May 2, 2016 11:00 AM 4.0253 µg/m3 on Monday, May 2, 2016 11:30 AM 4.0671 µg/m3 on Monday, May 2, 2016 12:00 PM 4.0943 µg/m3 on Monday, May 2, 2016 12:30 PM 4.0233 µg/m3 on Monday, May 2, 2016 1:00 PM 4.03 µg/m3 on Monday, May 2, 2016 1:30 PM 4.0298 µg/m3 on Monday, May 2, 2016 2:00 PM 4.0524 µg/m3 on Monday, May 2, 2016 2:30 PM 3.9888 µg/m3 on Monday, May 2, 2016 3:00 PM 3.9629 µg/m3 on Monday, May 2, 2016 3:30 PM 4.046 µg/m3 on Monday, May 2, 2016 4:00 PM 4.1588 µg/m3 on Monday, May 2, 2016 4:30 PM 4.2753 µg/m3 on Monday, May 2, 2016 5:00 PM 4.2941 µg/m3 on Monday, May 2, 2016 5:30 PM 4.2695 µg/m3 on Monday, May 2, 2016 6:00 PM 4.4195 µg/m3 on Monday, May 2, 2016 6:30 PM 4.3922 µg/m3 on Monday, May 2, 2016 7:00 PM 4.3992 µg/m3 on Monday, May 2, 2016 7:30 PM 4.5444 µg/m3 on Monday, May 2, 2016 8:00 PM 4.5973 µg/m3 on Monday, May 2, 2016 8:30 PM 4.6686 µg/m3 on Monday, May 2, 2016 9:00 PM 4.6845 µg/m3 on Monday, May 2, 2016 9:30 PM 4.6739 µg/m3 on Monday, May 2, 2016 10:00 PM 4.7074 µg/m3 on Monday, May 2, 2016 10:30 PM 4.6025 µg/m3 on Monday, May 2, 2016 11:00 PM 4.6498 µg/m3 on Monday, May 2, 2016 11:30 PM 4.6419 µg/m3 on Tuesday, May 3, 2016 12:00 AM 4.7099 µg/m3 on Tuesday, May 3, 2016 12:30 AM 4.7001 µg/m3 on Tuesday, May 3, 2016 1:00 AM 4.8082 µg/m3 on Tuesday, May 3, 2016 1:30 AM 4.9175 µg/m3 on Tuesday, May 3, 2016 2:00 AM 5.0584 µg/m3 on Tuesday, May 3, 2016 2:30 AM 5.1791 µg/m3 on Tuesday, May 3, 2016 3:00 AM 5.2034 µg/m3 on Tuesday, May 3, 2016 3:30 AM 5.2011 µg/m3 on Tuesday, May 3, 2016 4:00 AM 5.2163 µg/m3 on Tuesday, May 3, 2016 4:30 AM 5.3741 µg/m3 on Tuesday, May 3, 2016 5:00 AM 5.4115 µg/m3 on Tuesday, May 3, 2016 5:30 AM 5.4554 µg/m3 on Tuesday, May 3, 2016 6:00 AM 5.5749 µg/m3 on Tuesday, May 3, 2016 6:30 AM 5.6946 µg/m3 on Tuesday, May 3, 2016 7:00 AM 5.8332 µg/m3 on Tuesday, May 3, 2016 7:30 AM 5.8078 µg/m3 on Tuesday, May 3, 2016 8:00 AM 5.7586 µg/m3 on Tuesday, May 3, 2016 8:30 AM 5.8725 µg/m3 on Tuesday, May 3, 2016 9:00 AM 5.8741 µg/m3 on Tuesday, May 3, 2016 9:30 AM 5.9499 µg/m3 on Tuesday, May 3, 2016 10:00 AM 5.9508 µg/m3 on Tuesday, May 3, 2016 10:30 AM 5.8623 µg/m3 on Tuesday, May 3, 2016 11:00 AM 5.6687 µg/m3 on Tuesday, May 3, 2016 11:30 AM 5.6509 µg/m3 on Tuesday, May 3, 2016 12:00 PM 5.6286 µg/m3 on Tuesday, May 3, 2016 12:30 PM 5.5063 µg/m3 on Tuesday, May 3, 2016 1:00 PM 5.5264 µg/m3 on Tuesday, May 3, 2016 1:30 PM 5.5954 µg/m3 on Tuesday, May 3, 2016 2:00 PM 5.5335 µg/m3 on Tuesday, May 3, 2016 2:30 PM 5.6216 µg/m3 on Tuesday, May 3, 2016 3:00 PM 5.6535 µg/m3 on Tuesday, May 3, 2016 3:30 PM 5.5993 µg/m3 on Tuesday, May 3, 2016 4:00 PM 5.4773 µg/m3 on Tuesday, May 3, 2016 4:30 PM 5.5015 µg/m3 on Tuesday, May 3, 2016 5:00 PM 5.4602 µg/m3 on Tuesday, May 3, 2016 5:30 PM 0 µg/m3 on Tuesday, May 3, 2016 6:00 PM 3.1333 µg/m3 on Tuesday, May 3, 2016 6:30 PM 3.2318 µg/m3 on Tuesday, May 3, 2016 7:00 PM 2.0543 µg/m3 on Saturday, April 30, 2016 1:00 AM 1.912 µg/m3 on Saturday, April 30, 2016 1:30 AM 1.8928 µg/m3 on Saturday, April 30, 2016 2:00 AM 1.8958 µg/m3 on Saturday, April 30, 2016 2:30 AM 1.8793 µg/m3 on Saturday, April 30, 2016 3:00 AM 1.6872 µg/m3 on Saturday, April 30, 2016 3:30 AM 1.4435 µg/m3 on Saturday, April 30, 2016 4:00 AM 1.2549 µg/m3 on Saturday, April 30, 2016 4:30 AM 1.1784 µg/m3 on Saturday, April 30, 2016 5:00 AM 1.1687 µg/m3 on Saturday, April 30, 2016 5:30 AM 1.219 µg/m3 on Saturday, April 30, 2016 6:00 AM 1.205 µg/m3 on Saturday, April 30, 2016 6:30 AM 1.1903 µg/m3 on Saturday, April 30, 2016 7:00 AM 1.2232 µg/m3 on Saturday, April 30, 2016 7:30 AM 1.2079 µg/m3 on Saturday, April 30, 2016 8:00 AM 1.2034 µg/m3 on Saturday, April 30, 2016 8:30 AM 1.24 µg/m3 on Saturday, April 30, 2016 9:00 AM 1.2417 µg/m3 on Saturday, April 30, 2016 9:30 AM 1.2252 µg/m3 on Saturday, April 30, 2016 10:00 AM 1.2595 µg/m3 on Saturday, April 30, 2016 10:30 AM 1.2391 µg/m3 on Saturday, April 30, 2016 11:00 AM 1.2391 µg/m3 on Saturday, April 30, 2016 11:30 AM 1.1521 µg/m3 on Saturday, April 30, 2016 12:00 PM 1.1405 µg/m3 on Saturday, April 30, 2016 12:30 PM 1.1218 µg/m3 on Saturday, April 30, 2016 1:00 PM 1.0961 µg/m3 on Saturday, April 30, 2016 1:30 PM 1.043 µg/m3 on Saturday, April 30, 2016 2:00 PM 1.1228 µg/m3 on Saturday, April 30, 2016 2:30 PM 1.1282 µg/m3 on Saturday, April 30, 2016 3:00 PM 1.1116 µg/m3 on Saturday, April 30, 2016 3:30 PM 0.9543 µg/m3 on Saturday, April 30, 2016 4:00 PM 0.9418 µg/m3 on Saturday, April 30, 2016 4:30 PM 0.9297 µg/m3 on Saturday, April 30, 2016 5:00 PM 0.8854 µg/m3 on Saturday, April 30, 2016 5:30 PM 0.8702 µg/m3 on Saturday, April 30, 2016 6:00 PM 0.88 µg/m3 on Saturday, April 30, 2016 6:30 PM 0.8786 µg/m3 on Saturday, April 30, 2016 7:00 PM 0.8483 µg/m3 on Saturday, April 30, 2016 7:30 PM 0.8178 µg/m3 on Saturday, April 30, 2016 8:00 PM 0.7588 µg/m3 on Saturday, April 30, 2016 8:30 PM 0.9566 µg/m3 on Saturday, April 30, 2016 9:00 PM 1.0179 µg/m3 on Saturday, April 30, 2016 9:30 PM 1.0925 µg/m3 on Saturday, April 30, 2016 10:00 PM 1.1326 µg/m3 on Saturday, April 30, 2016 10:30 PM 1.1625 µg/m3 on Saturday, April 30, 2016 11:00 PM 1.1373 µg/m3 on Saturday, April 30, 2016 11:30 PM 1.1754 µg/m3 on Sunday, May 1, 2016 12:00 AM 1.2102 µg/m3 on Sunday, May 1, 2016 12:30 AM 1.2377 µg/m3 on Sunday, May 1, 2016 1:00 AM 1.3139 µg/m3 on Sunday, May 1, 2016 1:30 AM 1.3601 µg/m3 on Sunday, May 1, 2016 2:00 AM 1.319 µg/m3 on Sunday, May 1, 2016 2:30 AM 1.3367 µg/m3 on Sunday, May 1, 2016 3:00 AM 1.3302 µg/m3 on Sunday, May 1, 2016 3:30 AM 1.3004 µg/m3 on Sunday, May 1, 2016 4:00 AM 1.3366 µg/m3 on Sunday, May 1, 2016 4:30 AM 1.3302 µg/m3 on Sunday, May 1, 2016 5:00 AM 1.3181 µg/m3 on Sunday, May 1, 2016 5:30 AM 1.3074 µg/m3 on Sunday, May 1, 2016 6:00 AM 1.2925 µg/m3 on Sunday, May 1, 2016 6:30 AM 1.2897 µg/m3 on Sunday, May 1, 2016 7:00 AM 1.2415 µg/m3 on Sunday, May 1, 2016 7:30 AM 1.2322 µg/m3 on Sunday, May 1, 2016 8:00 AM 1.244 µg/m3 on Sunday, May 1, 2016 8:30 AM 1.2543 µg/m3 on Sunday, May 1, 2016 9:00 AM 1.2636 µg/m3 on Sunday, May 1, 2016 9:30 AM 1.2727 µg/m3 on Sunday, May 1, 2016 10:00 AM 1.3167 µg/m3 on Sunday, May 1, 2016 10:30 AM 1.3188 µg/m3 on Sunday, May 1, 2016 11:00 AM 1.3571 µg/m3 on Sunday, May 1, 2016 11:30 AM 1.3815 µg/m3 on Sunday, May 1, 2016 12:00 PM 1.368 µg/m3 on Sunday, May 1, 2016 12:30 PM 1.4016 µg/m3 on Sunday, May 1, 2016 1:00 PM 1.3839 µg/m3 on Sunday, May 1, 2016 1:30 PM 1.4258 µg/m3 on Sunday, May 1, 2016 2:00 PM 1.3883 µg/m3 on Sunday, May 1, 2016 2:30 PM 1.2934 µg/m3 on Sunday, May 1, 2016 3:00 PM 1.3455 µg/m3 on Sunday, May 1, 2016 3:30 PM 1.3487 µg/m3 on Sunday, May 1, 2016 4:00 PM 1.406 µg/m3 on Sunday, May 1, 2016 4:30 PM 1.3538 µg/m3 on Sunday, May 1, 2016 5:00 PM 1.3661 µg/m3 on Sunday, May 1, 2016 5:30 PM 1.3631 µg/m3 on Sunday, May 1, 2016 6:00 PM 1.3288 µg/m3 on Sunday, May 1, 2016 6:30 PM 1.3003 µg/m3 on Sunday, May 1, 2016 7:00 PM 1.332 µg/m3 on Sunday, May 1, 2016 7:30 PM 1.3108 µg/m3 on Sunday, May 1, 2016 8:00 PM 1.3224 µg/m3 on Sunday, May 1, 2016 8:30 PM 1.139 µg/m3 on Sunday, May 1, 2016 9:00 PM 1.0211 µg/m3 on Sunday, May 1, 2016 9:30 PM 0.9581 µg/m3 on Sunday, May 1, 2016 10:00 PM 0.922 µg/m3 on Sunday, May 1, 2016 10:30 PM 0.8986 µg/m3 on Sunday, May 1, 2016 11:00 PM 0.9181 µg/m3 on Sunday, May 1, 2016 11:30 PM 0.9223 µg/m3 on Monday, May 2, 2016 12:00 AM 0.8496 µg/m3 on Monday, May 2, 2016 12:30 AM 0.8147 µg/m3 on Monday, May 2, 2016 1:00 AM 0.7417 µg/m3 on Monday, May 2, 2016 1:30 AM 0.6913 µg/m3 on Monday, May 2, 2016 2:00 AM 0.7221 µg/m3 on Monday, May 2, 2016 2:30 AM 0.6981 µg/m3 on Monday, May 2, 2016 3:00 AM 0.6747 µg/m3 on Monday, May 2, 2016 3:30 AM 0.7025 µg/m3 on Monday, May 2, 2016 4:00 AM 0.704 µg/m3 on Monday, May 2, 2016 4:30 AM 0.6959 µg/m3 on Monday, May 2, 2016 5:00 AM 0.7058 µg/m3 on Monday, May 2, 2016 5:30 AM 0.6835 µg/m3 on Monday, May 2, 2016 6:00 AM 0.7161 µg/m3 on Monday, May 2, 2016 6:30 AM 0.6942 µg/m3 on Monday, May 2, 2016 7:00 AM 0.6735 µg/m3 on Monday, May 2, 2016 7:30 AM 0.6814 µg/m3 on Monday, May 2, 2016 8:00 AM 0.7094 µg/m3 on Monday, May 2, 2016 8:30 AM 0.6735 µg/m3 on Monday, May 2, 2016 9:00 AM 0.6371 µg/m3 on Monday, May 2, 2016 9:30 AM 0.6253 µg/m3 on Monday, May 2, 2016 10:00 AM 0.5748 µg/m3 on Monday, May 2, 2016 10:30 AM 0.5686 µg/m3 on Monday, May 2, 2016 11:00 AM 0.5463 µg/m3 on Monday, May 2, 2016 11:30 AM 0.5394 µg/m3 on Monday, May 2, 2016 12:00 PM 0.5383 µg/m3 on Monday, May 2, 2016 12:30 PM 0.5028 µg/m3 on Monday, May 2, 2016 1:00 PM 0.4878 µg/m3 on Monday, May 2, 2016 1:30 PM 0.4603 µg/m3 on Monday, May 2, 2016 2:00 PM 0.4534 µg/m3 on Monday, May 2, 2016 2:30 PM 0.4266 µg/m3 on Monday, May 2, 2016 3:00 PM 0.4105 µg/m3 on Monday, May 2, 2016 3:30 PM 0.421 µg/m3 on Monday, May 2, 2016 4:00 PM 0.42 µg/m3 on Monday, May 2, 2016 4:30 PM 0.4516 µg/m3 on Monday, May 2, 2016 5:00 PM 0.4604 µg/m3 on Monday, May 2, 2016 5:30 PM 0.4373 µg/m3 on Monday, May 2, 2016 6:00 PM 0.4471 µg/m3 on Monday, May 2, 2016 6:30 PM 0.4381 µg/m3 on Monday, May 2, 2016 7:00 PM 0.4086 µg/m3 on Monday, May 2, 2016 7:30 PM 0.4378 µg/m3 on Monday, May 2, 2016 8:00 PM 0.4401 µg/m3 on Monday, May 2, 2016 8:30 PM 0.4574 µg/m3 on Monday, May 2, 2016 9:00 PM 0.4531 µg/m3 on Monday, May 2, 2016 9:30 PM 0.4381 µg/m3 on Monday, May 2, 2016 10:00 PM 0.4601 µg/m3 on Monday, May 2, 2016 10:30 PM 0.411 µg/m3 on Monday, May 2, 2016 11:00 PM 0.4336 µg/m3 on Monday, May 2, 2016 11:30 PM 0.4377 µg/m3 on Tuesday, May 3, 2016 12:00 AM 0.4807 µg/m3 on Tuesday, May 3, 2016 12:30 AM 0.492 µg/m3 on Tuesday, May 3, 2016 1:00 AM 0.5366 µg/m3 on Tuesday, May 3, 2016 1:30 AM 0.5736 µg/m3 on Tuesday, May 3, 2016 2:00 AM 0.6134 µg/m3 on Tuesday, May 3, 2016 2:30 AM 0.6667 µg/m3 on Tuesday, May 3, 2016 3:00 AM 0.6808 µg/m3 on Tuesday, May 3, 2016 3:30 AM 0.6985 µg/m3 on Tuesday, May 3, 2016 4:00 AM 0.7205 µg/m3 on Tuesday, May 3, 2016 4:30 AM 0.7978 µg/m3 on Tuesday, May 3, 2016 5:00 AM 0.8207 µg/m3 on Tuesday, May 3, 2016 5:30 AM 0.844 µg/m3 on Tuesday, May 3, 2016 6:00 AM 0.8809 µg/m3 on Tuesday, May 3, 2016 6:30 AM 0.928 µg/m3 on Tuesday, May 3, 2016 7:00 AM 0.9972 µg/m3 on Tuesday, May 3, 2016 7:30 AM 0.9858 µg/m3 on Tuesday, May 3, 2016 8:00 AM 0.9681 µg/m3 on Tuesday, May 3, 2016 8:30 AM 1.014 µg/m3 on Tuesday, May 3, 2016 9:00 AM 1.0476 µg/m3 on Tuesday, May 3, 2016 9:30 AM 1.072 µg/m3 on Tuesday, May 3, 2016 10:00 AM 1.0941 µg/m3 on Tuesday, May 3, 2016 10:30 AM 1.09 µg/m3 on Tuesday, May 3, 2016 11:00 AM 1.0389 µg/m3 on Tuesday, May 3, 2016 11:30 AM 1.0228 µg/m3 on Tuesday, May 3, 2016 12:00 PM 1.024 µg/m3 on Tuesday, May 3, 2016 12:30 PM 1.0016 µg/m3 on Tuesday, May 3, 2016 1:00 PM 1.0161 µg/m3 on Tuesday, May 3, 2016 1:30 PM 1.0273 µg/m3 on Tuesday, May 3, 2016 2:00 PM 1.0233 µg/m3 on Tuesday, May 3, 2016 2:30 PM 1.0518 µg/m3 on Tuesday, May 3, 2016 3:00 PM 1.0704 µg/m3 on Tuesday, May 3, 2016 3:30 PM 1.082 µg/m3 on Tuesday, May 3, 2016 4:00 PM 1.0613 µg/m3 on Tuesday, May 3, 2016 4:30 PM 1.073 µg/m3 on Tuesday, May 3, 2016 5:00 PM 1.0584 µg/m3 on Tuesday, May 3, 2016 5:30 PM 0.9407 µg/m3 on Tuesday, May 3, 2016 6:00 PM 1.2707 µg/m3 on Tuesday, May 3, 2016 6:30 PM 1.3158 µg/m3 on Tuesday, May 3, 2016 7:00 PM
Date & TimePM 2.5 24-hour Average (µg/m3)PM 10 24-hour Average (µg/m3)
(MST) 1.32 3.2318
(MST) 1.27 3.1333
(MST) 0.94 0
(MST) 1.06 5.4602
(MST) 1.07 5.5015
(MST) 1.06 5.4773
(MST) 1.08 5.5993
(MST) 1.07 5.6535
(MST) 1.05 5.6216
(MST) 1.02 5.5335
(MST) 1.03 5.5954
(MST) 1.02 5.5264
(MST) 1 5.5063
(MST) 1.02 5.6286
(MST) 1.02 5.6509
(MST) 1.04 5.6687
(MST) 1.09 5.8623
(MST) 1.09 5.9508
(MST) 1.07 5.9499
(MST) 1.05 5.8741
(MST) 1.01 5.8725
(MST) 0.97 5.7586
(MST) 0.99 5.8078
(MST) 1 5.8332
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