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Houston Health Department

Pollen and Mold: Tuesday, March 21, 2023


Houston pollen and mold count — All counts below are in cubic meter air

Tree Pollen
TREE POLLEN
HEAVY
603

Weed Pollen
WEED POLLEN
LOW
4

Grass Pollen
GRASS POLLEN
LOW
4

Mold Pollen
MOLD SPORES
LOW
2,432


 
The Major Tree Pollen Counted:
  Acer (Maple) 16
   Morus (Mulberry) 2
  Alnus (Alder) 0   Pinaceae (Pine) 22
  Betula (Birch) 4   Platanus (Sycamore) 20
  Carya (Hickory, Pecan) 8   Populus (Cottonwood) 0
  Celtis (Hackberry) 6
   Quercus (Oak) 433
  Corylus (Hazelnut) 0   Salix (Willow) 0
  Cupressaceae (Cedar) 12   Tilia (Linden) 0
  Fraxinus (Ash) 70   Ulmus (Elm) 0
  Juglans (Walnut) 0   
  Liquidamber (Sweet Gum) 4   Other Tree Pollen/Unknown 6
 
The Major Weed Pollen Counted:
  Ambrosia (Ragweed) 0
   Plantago (Plantain) 2
  Artemeisia (Sage) 0
   Rumex (Sheep Sorel) 2
  Asteraceae (Aster) 0   Typha (Cattail) 0
  Amaranthaceae (Amaranth) 0
   Urticaceae (Nettle) 0
  Cyperaceae (Sedge) 0
   Other Weed Pollen 0
 
The Major Mold Spores Counted:
  Algae 117
   Oidium/Erysiphe 0
  Alternaria 4
   Penicillium/Aspergillus 0
 Ascospores 1,306   Periconia 2
  Basidiospores 200  Pithomyces 4
  Cercospora 0   Rusts 6
  Cladosporium 723   Smuts/Myxomycetes 44
  Curvularia 4   Spegazzinia 0
  Dreshslera/Helminthosporium 4
   Stemphilium 0
  Epicoccum 4   Tetraploa 0
  Nigrospora 2   Torula 12

*The next Pollen and Mold Spore Count report will be on Wednesday, March 22, 2023*
Recorded message is available at 713-247-5846.
Information about air quality is available by calling 832-393-5612.
For additional information, email to: pollen.mold@houstontx.gov or call 832-393-3920.
We are a pollen and mold count AAAAI-certified station.