Overall Overview
Total pollen increased from 38 to 96 (+58).
Total mold spores increased from 16,085 to 17,609 (+1,524).
Pollen rebounded sharply, driven primarily by weeds. Mold continued to rise, though at a more moderate pace than the prior day.
Tree, Grass, and Weed Pollen
Tree Pollen (4 → 14, +10)
Main contributors:
- Carya (Hickory/Pecan): +10 (2 → 12)
- Other Tree: +2 (0 → 2)
- Pinaceae (Pine): −2 (2 → 0)
Tree pollen increased meaningfully, almost entirely due to hickory/pecan.
Grass Pollen (12 → 10, −2)
Grass declined slightly but remains present at moderate levels.
Weed Pollen (22 → 72, +50)
Largest increases:
- Artemisia (Sage): +24 (2 → 26)
- Other Weed: +12 (6 → 18)
- Plantago (Plantain): +4 (6 → 10)
- Rumex (Sheep Sorel): +4 (6 → 10)
- Typha (Cattail): +4 (0 → 4)
- Cyperaceae (Sedge): +2 (0 → 2)
Weed pollen surged, with sage accounting for nearly half of the total increase.
Mold Spores (16,085 → 17,609, +1,524)
Largest Absolute Increases
- Cladosporium: +2,892 (2,053 → 4,945)
- Alternaria: +164 (42 → 206)
- Cercospora: +111 (22 → 133)
- Epicoccum: +32 (36 → 68)
- Periconia: +12 (14 → 26)
- Stemphyllium: +12 (0 → 12)
- Rust: +6 (6 → 12)
- Algae: +6 (8 → 14)
Largest Decreases
- Ascomycetes: −1,221 (10,783 → 9,562)
- Basidiomycetes: −443 (2,721 → 2,278)
- Penicillium/Aspergillus: −53 (279 → 226)
The overall mold increase was driven primarily by a sharp rise in Cladosporium, which more than offset declines in Ascomycetes and Basidiomycetes.
Key Takeaways
- Pollen more than doubled day over day, led by a strong rebound in weeds.
- Sage (Artemisia) was the dominant driver of the weed surge.
- Tree pollen rose modestly due to hickory/pecan.
- Mold continued higher overall, with Cladosporium showing a substantial jump despite declines in the two largest baseline categories.
- Combined exposure shifted from low-pollen/high-mold to high-pollen/high-mold conditions.
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