Mold Statistics

Intro text with explanation of how we gathered the data and what is the aim of the showcase.

  • Total of 1339 properties tested.
  • Total of 990 outdoor samples taken.
  • Geo-location of properties tested: Canada (mainly Ontario and Quebec states).

—TABLE OF CONTENTS—

Toxic Mold Types Found Indoors and Outdoors

Numbers explained (conclusions):

Most common toxic mold types found in homes, ordered by presense:

  1. Penicillium/Aspergillus group (38%)
  2. Chaetomium (17%)
  3. Stachybotrys (16%)
  4. Alternaria (9%)

Only 12% of tested homes didn’t have any presense of mold

Most common toxic mold types found outdoors, ordered by presense:

  1. Penicillium/Aspergillus group (53%)
  2. Alternaria (17%)
  3. Chaetomium (4%)
  4. Stachybotrys (2%)

Only 6% of tested outdoor air samples didn’t have any presense of mold

Other Mold Types Found Indoors and Outdoors

Numbers explained (conclusions):

Most common mold types found in homes, ordered by presense:

  1. Basidiospores (27%)
  2. Cladosporium (27%)
  3. Hyphal Fragment (25%)
  4. Smuts/Periconia/Myxomycetes (19%)
  5. Mitospores (17%)
  6. Pollen (15%)
  7. Ascospores (14%)
  8. Ganoderma (9%)
  9. Epicoccum nigrum (7%)
  10. Pithomyces (7%)

Most common mold types found outdoors, ordered by presense:

  1. Basidiospores (76%)
  2. Cladosporium (67%)
  3. Ascospores (59%)
  4. Hyphal Fragment (37%)
  5. Ganoderma (32%)
  6. Pollen (28%)
  7. Smuts/Periconia/Myxomycetes (28%)
  8. Epicoccum nigrum (12%)
  9. Mitospores (10%)
  10. Pithomyces (5%)