Houston Pollen and Mold Reports

Daily updated counts and reports for trees, weed, grass and mold are available in the above buttons.

Amer Ahmed Amer Ahmed

Houston tree, grass, mold, and mold (all 4 types!) ramp significantly

Numerous tree pollen types returned over the weekend. Oak reported a value of 42 after not reporting at all previously, and other tree emitters also reported some values after being silent on Friday. Rumex started to emerge on the weed side. Grass pollen significantly increased to a value of 72, and mold doubled since Friday.

Pollen:

  • Tree Pollen Total: Increased by 168% from 56 to 150.

  • Grass Pollen Total: Increased by 157% from 28 to 72.

  • Weed Pollen Total: Increased by 300% from 8 to 32.

  • Overall Tree, Weed, Grass Pollen Total: Increased by 176% from 92 to 254.

Mold:

  • Overall Mold Total: Increased significantly by 108% from 4,999 to 10,397.

Specific Species Changes:

  • Carya (Hickory/Pecan): Decreased by 21%.

  • Celtis (Hackberry): Showed an increase.

  • Plantago (Plantain): Increased by 50%.

  • Alternaria: Increased by 175%.

  • Ascomycetes: Increased dramatically by 414%.

  • Basidiomycetes: Decreased by 18%.

  • Cercospora: Increased by 68%.

  • Cladosporium: Decreased by 35%.

  • Drechslera/Helmintho.: Increased by 133%.

  • Oidium/Erysiphe(Powdery Mildew): Increased by 150%.

  • Penicillium/Aspergillus: Increased by 168%.

  • Rust: Decreased by 57%.

  • Smuts/Myxomycete: Decreased by 54%.

These changes indicate a significant rise in pollen levels across tree, grass, and weed species, as well as a substantial increase in overall mold levels. Specific mold species like Ascomycetes, Drechslera/Helmintho., and Penicillium/Aspergillus showed notable increases, while others like Cladosporium and Smuts/Myxomycete decreased during this period.

Read More
Amer Ahmed Amer Ahmed

Houston tree, weed pollen and mold counts drop; grass rises

Pollen:

  • Tree Pollen Total: Decreased by 33% from 84 to 56.

  • Grass Pollen Total: Increased by 40% from 20 to 28.

  • Weed Pollen Total: Decreased by 60% from 20 to 8.

  • Overall Tree, Weed, Grass Pollen Total: Decreased by 26% from 124 to 92.

Mold:

  • Overall Mold Total: Decreased by 34% from 7,559 to 4,999.

Specific Species Changes:

  • Carya (Hickory/Pecan): Decreased by 18%.

  • Basidiomycetes: Decreased by 36%.

  • Cladosporium: Decreased by 36%.

  • Curvularia: Increased by 300%.

  • Penicillium/Aspergillus: Increased by 73%.

  • Rust: Increased by 75%.

  • Smuts/Myxomycete: Increased by 16%.

  • Spegazinia: Increased by 100%.

  • Torula: Decreased by 33%.

Read More
Amer Ahmed Amer Ahmed

Houston tree pollen drops again but weed and grass continues their steady presence; mold drops too

Pollen:

  • Tree Pollen Total: Decreased by 36% from 132 to 84.

  • Grass Pollen Total: Decreased by 33% from 30 to 20.

  • Weed Pollen Total: Increased by 43% from 14 to 20.

  • Overall Tree, Weed, Grass Pollen Total: Decreased by 30% from 176 to 124.

Mold:

  • Overall Mold Total: Decreased by 13% from 8,731 to 7,559.

Specific Species Changes:

  • Carya (Hickory/Pecan): Increased by 62%.

  • Basidiomycetes: Increased by 28%.

  • Cladosporium: Decreased significantly by 47%.

  • Penicillium/Aspergillus: Increased by 158%.

Read More