Houston Health Department

Pollen and Mold: Wednesday, September 20, 2023


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

Tree Pollen
TREE POLLEN
MEDIUM
52

Weed Pollen
WEED POLLEN
HEAVY
58

Grass Pollen
GRASS POLLEN
MEDIUM
8

Mold Pollen
MOLD SPORES
HEAVY
17,971



 
The Major Tree Pollen Counted:
  Acer (Maple) 0
  Morus (Mulberry) 0
  Alnus (Alder) 0   Pinaceae (Pine) 0
  Betula (Birch) 0   Platanus (Sycamore) 0
  Carya (Hickory, Pecan) 0   Populus (Cottonwood) 0
  Celtis (Hackberry) 0
  Quercus (Oak) 0
  Corylus (Hazelnut) 0   Salix (Willow) 0
  Cupressaceae (Cedar) 0   Tilia (Linden) 0
  Fraxinus (Ash) 0   Ulmus (Elm) 52
  Juglans (Walnut) 0   
  Liquidamber (Sweet Gum) 0   Other Tree Pollen/Unknown 0
 
The Major Weed Pollen Counted:
  Ambrosia (Ragweed) 44
  Plantago (Plantain) 0
  Artemeisia (Sage) 2
  Rumex (Sheep Sorel) 0
  Asteraceae (Aster) 0   Typha (Cattail) 0
  Amaranthaceae (Amaranth) 4
  Urticaceae (Nettle) 2
  Cyperaceae (Sedge) 0
  Other Weed Pollen 6
 
The Major Mold Spores Counted:
  Algae 0
  Oidium/Erysiphe 0
  Alternaria 376
  Penicillium/Aspergillus 558
 Ascospores 2,174   Periconia 28
  Basidiospores 1,488  Pithomyces 22
  Cercospora 382   Rusts 4
  Cladosporium 10,588   Smuts/Myxomycetes 48
  Curvularia 905   Spegazzinia 4
  Dreshslera/Helminthosporium 91
  Stemphilium 6
  Epicoccum 8   Tetraploa 6
  Nigrospora 1,275   Torula 8


*The next Pollen and Mold Spore Count report will be on Thursday, September 21, 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.