Houston Texas Pollen and Mold Counts (September 30, 2024, to October 1, 2024)
Pollen:
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Houston Texas Tree Pollen: A sharp drop from 297 to 10 (-287, -97%), primarily due to the decrease in Ulmus (Elm).
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Houston Texas Grass Pollen: Decreased from 36 to 14 (-22, -61%).
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Houston Texas Weed Pollen: Decreased significantly from 783 to 402 (-381, -49%), with large declines in Ambrosia (Ragweed) and Chenopodiaceae/Amaranthaceae (Amaranth).
Mold:
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Total Mold: Slight decrease from 23,044 to 22,649 (-395, -2%), with increases in Cladosporium, Curvularia, and Penicillium/Aspergillus but declines in several other mold species.
Detailed Changes:
Tree Pollen:
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Ulmus (Elm): Decreased by 287 (from 297 to 10).
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All other tree species remained at 0.
Grass Pollen:
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Decreased by 22 (from 36 to 14).
Weed Pollen:
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Ambrosia (Ragweed): Decreased by 333 (from 729 to 396).
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Chenopodiaceae/Amaranthaceae (Amaranth): Decreased by 24 (from 24 to 0).
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Other Weed: Decreased by 26 (from 30 to 4).
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Cyperaceae (Sedge): Increased by 2 (from 0 to 2).
Mold:
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Algae: Decreased to 0 (from 36).
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Alternaria: Decreased to 198 (from 747).
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Ascomycetes: Decreased to 2,438 (from 3,730).
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Basidiomycetes: Decreased to 1,976 (from 3,250).
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Cercospora: Decreased to 508 (from 820).
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Cladosporium: Increased to 15,835 (from 13,249).
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Curvularia: Increased to 257 (from 218).
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Drechslera/Helminthosporium: Increased to 85 (from 60).
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Epicoccum: Decreased to 36 (from 127).
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Nigrospora: Decreased to 14 (from 145).
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Oidium/Erysiphe (Powdery Mildew): Decreased to 6 (from 18).
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Penicillium/Aspergillus: Increased to 615 (from 291).
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Periconia: Decreased to 12 (from 18).
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Pithomyces: Decreased to 22 (from 85).
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Rust: Decreased to 8 (from 42).
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Smuts/Myxomycete: Increased to 603 (from 194).
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Spegazinia: Increased to 4 (from 2).
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Stemphyllium: Decreased to 8 (from 12).
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Tetraploa: Appeared with a count of 6.
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Torula: Appeared with a count of 18.
Summary:
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Houston Texas Pollen: A significant decline across all categories, with sharp drops in Tree, Grass, and Weed Pollen. The Ulmus (Elm) and Ambrosia (Ragweed) counts were the main contributors to the decline.
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Houston Texas Mold: A slight overall decrease in mold, but with notable increases in Cladosporium, Penicillium/Aspergillus, and Smuts/Myxomycete.
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