Overall Overview
Total pollen decreased from 88 to 68 (−20).
Total mold spores decreased from 13,459 to 8,480 (−4,979).
Both pollen and mold moved lower, with mold showing a substantial absolute decline.
Tree, Grass, and Weed Pollen
Tree Pollen (0 → 10, +10)
Tree pollen reappeared after being absent the prior day.
- Carya (Hickory/Pecan): +6 (0 → 6)
- Other Tree: +4 (0 → 4)
Grass Pollen (26 → 12, −14)
Grass declined sharply and was the primary driver of the total pollen decrease.
Weed Pollen (62 → 46, −16)
Largest changes:
- Artemisia (Sage): −10 (14 → 4)
- Rumex (Sheep Sorel): −10 (14 → 4)
- Urticaceae (Nettle): −2 (2 → 0)
- Chenopodiaceae/Amaranthaceae: +2 (2 → 4)
- Other Weed: +4 (12 → 16)
Weeds declined overall, led by reductions in Artemisia and Rumex.
Mold Spores (13,459 → 8,480, −4,979)
Largest Absolute Decreases
- Ascomycetes: −4,046 (7,520 → 3,474)
- Basidiomycetes: −593 (1,986 → 1,393)
- Cladosporium: −343 (3,250 → 2,907)
- Penicillium/Aspergillus: −85 (178 → 93)
- Cercospora: −34 (119 → 85)
- Alternaria: −20 (133 → 113)
- Algae: −22 (22 → 0)
Notable Increases
- Smuts/Myxomycete: +156 (87 → 243)
- Dreshslera/Helminthosporium: +10 (28 → 38)
- Epicoccum: +8 (50 → 58)
- Tetraploa: +8 (2 → 10)
- Torula: +8 (0 → 8)
The mold reduction was overwhelmingly driven by a large drop in Ascomycetes, with additional meaningful declines in Basidiomycetes and Cladosporium.
Table of Absolute Changes
| Category | Species | Change |
|---|---|---|
| Tree | Carya (Hickory/Pecan) | +6 |
| Tree | Other Tree | +4 |
| Weed | Artemisia (Sage) | −10 |
| Weed | Rumex (Sheep Sorel) | −10 |
| Mold | Ascomycetes | −4,046 |
| Mold | Basidiomycetes | −593 |
| Mold | Cladosporium | −343 |
| Mold | Smuts/Myxomycete | +156 |
Key Takeaways
- Total pollen declined, driven by sharp reductions in grass and weeds despite a modest return of tree pollen.
- Mold levels dropped materially, led by a large contraction in Ascomycetes.
- Although several secondary mold species increased, they were more than offset by broad-based declines in dominant categories.
- Overall exposure eased compared to the prior day, particularly on the mold side.
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