Pollen & Mold

Pollen and mold counting has concluded for 2021. We'll resume in February 2022 as weather conditions permit.

During pollen and mold season, the Southwest Ohio Air Quality Agency measures the daily levels of naturally occurring airborne pollutants These counts are expressed in grains per cubic meter of air for pollen levels and spores per cubic meter of air for mold levels.

November 24, 2021 Pollen & Mold Counts

Type	Count
Pollen: Low	0
1st Prevalent:	0
2nd Prevalent:	0
Other Trees	0
Grasses	0
Ragweed	0
Other	0
Mold: Low	97
1st Prevalent: Cladosporium	47
2nd Prevalent: Ascospores	25
Other: Periconia, Alternaria, Myxomycete	25

Pollen & Mold Descriptors

Descriptor	Pollen	Mold
Low	0 to 20	0 to 500
Moderate	21 to 100	501 to 1,500
High	101 to 1,000	1,501 to 5,000
Very high	Greater than 1,000	Greater than 5,000

Raw Daily Counts

The 2021 Raw Daily Counts (XLSX) includes a detailed record of pollen and mold sources for the season.

Statistical Averages for Pollen and Mold Data

Statistical Averages are calculated for ten years of data at our current address, 250 William Howard Taft Road, Cincinnati, Ohio 45219.

November 15 to November 19 (Calculated for Ten Years of Data)

Type	Monday	Tuesday	Wednesday	Thursday	Friday
Pollen	2	2	2	2	1
Mold	456	443	435	434	446

November 22 to November 26 (Calculated for Ten Years of Data)

Type	Monday	Tuesday	Wednesday	Thursday	Friday
Pollen	1	1	1	1	1
Mold	335	319	277	255	209