Overall Overview
Total pollen decreased from 88 to 70 (-18).
Total mold increased from 4,793 to 6,443 (+1,650).
The rise in airborne load was driven entirely by mold increases, which more than offset the pollen decline.
Tree, Grass, and Weed Pollen
Tree pollen declined from 42 to 34 (-8), with offsetting moves:
- Quercus (Oak): -22
- Carya (Hickory/Pecan): +12
- Fraxinus (Ash): +4
- Morus (Mulberry): +4
- Other Tree: -4
Grass pollen decreased from 18 to 16 (-2).
Weed pollen declined from 28 to 20 (-8), driven by:
- Other Weed: -10
- Plantago (Plantain): +2
Mold Spores
Total mold increased by 1,650, led by:
- Ascomycetes: +1,822
- Basidiomycetes: +639
Additional increases:
- Cercospora: +54
- Smuts/Myxomycete: +49
- Alternaria: +37
- Epicoccum: +33
- Dreshslera/Helminthosporium: +20
- Penicillium/Aspergillus: +20
Largest decline:
- Cladosporium: -1,020
Smaller declines included Algae (-16), Torula (-6), and Periconia (-4).
Key Takeaways
- Mold growth drove the overall increase in airborne counts, led by a sharp rise in Ascomycetes.
- Tree pollen continued to moderate, primarily due to a large drop in Oak.
- Weed and grass pollen edged lower, with limited contribution to total movement.
- Cladosporium declined materially but was outweighed by gains in other mold groups.
Table of Absolute Changes (Largest Magnitude First)
| Category | Species | Change |
|---|---|---|
| Mold | Ascomycetes | +1,822 |
| Mold | Cladosporium | -1,020 |
| Mold | Basidiomycetes | +639 |
| Tree | Quercus (Oak) | -22 |
| Mold | Cercospora | +54 |
| Mold | Smuts/Myxomycete | +49 |
| Mold | Alternaria | +37 |
| Mold | Epicoccum | +33 |
| Mold | Dreshslera/Helminthosporium | +20 |
| Mold | Penicillium/Aspergillus | +20 |
| Tree | Carya (Hickory/Pecan) | +12 |
| Weed | Other Weed | -10 |
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