Home mold test plates against an outdoor control: four sampling methods, one house, 96 hours

Four open settle plates were placed in and around one South Louisiana house held under 50% RH (vent air, vent swab, indoor air, outdoors) and photographed at about 24, 48, 72 and 96 hours, 14 to 18 September 2026. Every plate grew mold. The outdoor plate grew the most at every reading after 48 hours. The swab grew far more than the air plate at the same vent. Without an outdoor plate run at the same time, a home test result has nothing to compare against. Limits: no sealed control plate, one house, visual counts only.

Authors

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-11-02
DOI
https://doi.org/10.5281/zenodo.23898918
Primary Topic
Indoor Air Quality and Microbial Exposure
Type
article
Field-Weighted Citation Impact
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article

Home mold test plates against an outdoor control: four sampling methods, one house, 96 hours

Ron Prevost
Zenodo (CERN European Organization for Nuclear Research)
Indoor Air Quality and Microbial Exposure
article

Home mold test plates against an outdoor control: four sampling methods, one house, 96 hours

Ron Prevost
article en

Abstract

Four open settle plates were placed in and around one South Louisiana house held under 50% RH (vent air, vent swab, indoor air, outdoors) and photographed at about 24, 48, 72 and 96 hours, 14 to 18 September 2026. Every plate grew mold. The outdoor plate grew the most at every reading after 48 hours. The swab grew far more than the air plate at the same vent. Without an outdoor plate run at the same time, a home test result has nothing to compare against. Limits: no sealed control plate, one house, visual counts only.

Zenodo (CERN European Organization for Nuclear Research)
Openalex Percentile: Top 20%
Indoor Air Quality and Microbial Exposure
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Home mold test plates against an outdoor control: four sampling methods, one house, 96 hours — Ron Prevost · Zenodo (CERN European Organization for Nuclear Research) (2026) | TGRS Research Map | TGRS