Children's Mercy Kansas City

Laser particle counts are the number of particles per cubic foot divided into 6 different size ranges. A laser beam literally counts the number of such particles as they are sucked past a detector. There is evidence that increased numbers of particles, particularly in the smaller ranges, are associated with heart diseases. That is why we measure it.

Thursday, September 29, 2016

Contact Us

Phone: (816) 960-8885
Fax: (816) 960-8888

Thursday's Comments

We are gradually coming to an end for ragweed season for this year. Most of the plants have stopped releasing pollen. But, for the next week we could have one last burst of ragweed pollen if the weather conditions are just right. In the mean time there is enough chenopod in the air to cause a lot of people to sneeze. Chenopod is a family group that includes most of the Amaranthaceae and all the weeds that used to be grouped in the Chenopodeaceae. DNA analysis has changed the taxonomic relationships of these weeds. But, their allergenic potential has not changed.


Location Pollen (m3) Mold (m3)
Downtown 60 (High) 7424 (Moderate)

Laser Particle Counts

Size Count (ft3)
0.3-0.5uM 401250
0.5-1.0uM 58895
1 - 5uM 20398
5-10uM 1944
10-25uM 250
>25uM 10

Top 5 Pollens

Pollen Count Percent
Chenopod 24 40%
Ragweed 12 20%
Pollen, Other 8 13.33%
Sage 7 11.67%
Other Weed Pollen, and Other pollen 9 15%

Top 5 Molds

Mold Count Percent
Cladosporium 3207 43.2%
Ascospores 1358 18.29%
Basidiospores 1040 14.01%
Smuts 578 7.79%
Alternaria and other mold 1241 16.72%

Pollen and mold counts are collected at Children's Mercy Hospitals and Clinics Hospital Hill location using a Hirst spore trap manufactured by Burkard Limited. Results are expressed as the mean value of the particles per cubic meter and represent an integrated 24 hour collection. These results may be published for media purposes provided the Children's Mercy Hospitals and Clinics logo is used to acknowledge the source. Written authorization must be provided for commercial use of the results. For a recorded count, call (816) 346-1331.

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