Houston tree, grass pollen drop, as well as mold. Weed counts rise

Written By Amer Ahmed

Pollen Changes:

  • Tree pollen total decreased by 98 units, representing a 63% reduction from Apr 23 to Apr 24.

  • Grass pollen total decreased by 20 units, which corresponds to a 67% reduction from the previous day.

  • Weed pollen total increased by 20 units, showing a substantial 143% rise compared to Apr 23.

Mold Changes:

  • Overall mold total decreased slightly by 171 units, indicating a 2% reduction from the previous day.

Specific Species Changes:

  • Among tree species:

    • Quercus (Oak) pollen decreased by 40 units, showing a 71% reduction.

    • Carya (Hickory/Pecan) pollen decreased by 18 units, indicating a 47% reduction.

    • Fraxinus (Ash) pollen decreased by 10 units, corresponding to an 83% reduction.

  • Among weed species:

    • Plantago (Plantain) pollen increased by 20 units, demonstrating a notable 333% rise.

    • Rumex (Sheep Sorel) pollen increased by 2 units, representing a 100% increase.

  • Among mold species:

    • Penicillium/Aspergillus mold decreased by 138 units, showing a 57% reduction.

    • Drechslera/Helminthosporium mold increased by 18 units, indicating a significant 300% rise.

    • Smuts/Myxomycete mold increased by 51 units, representing a 98% increase.

Amer Ahmed
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