Topic
Indoor Air
Indoor Air is a recurring research topic on Health Canon. This hub collects related explainers and protocols, newest first, each with evidence grades and practical decision frameworks.
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Environmental Health
Stachybotrys “Black Mold”: What the Evidence Actually Supports
Stachybotrys chartarum signals chronic moisture on cellulose materials. Toxic black mold media narratives overshoot mainstream dampness science—fix water first, not genus panic.
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Environmental Health
Damp Buildings and Asthma: Effect Sizes from Fisk, Mendell, and WHO
Meta-analyses link home dampness and mold to roughly 30–50% higher odds of respiratory outcomes. The intervention is moisture control—not essential oil theater.
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Environmental Health
Laundry Microfibers: Filters, Fleece, and Indoor Dust Pathways
Synthetic textiles shed microfibers to wastewater and indoor air. Capture devices claim high removal; wash habits and HEPA dust control complete the stack.
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Environmental Health
Air Fresheners and Indoor Air: VOCs, Secondary Chemistry, and Health Reports
Air fresheners are major indoor VOC sources. Terpenes plus ozone make formaldehyde and particles. Population surveys show widespread reported symptoms—and secondhand scent conflict.
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Environmental Health
Mold Remediation Hierarchy and the Limits of Air Testing
Fix moisture first. ERMI and spore traps are not priesthoods.
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Environmental Health
WHO Dampness and Mould Framework: Why Moisture Beats Spore Counts
No safe microbial threshold—fix water, then clean. IOM evidence ladder included.
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Environmental Health
Mold & Damp Buildings: Health Evidence, Testing Limits & Remediation That Works
Dampness—not a magic spore number—is the risk signal. WHO and IOM link moldy buildings to respiratory disease; CDC does not recommend routine home mold testing. Fix water first.
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Environmental Health
Microplastics and Human Health: Exposure, Organ Evidence & What Actually Reduces Dose
Humans take in tens of thousands of plastic particles yearly from diet and air—and landmark studies have found plastics in blood, plaque, placenta, and brain tissue. Here is how to read the evidence without credit-card myths.
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Environmental Health
Endocrine-Disrupting Fragrances: Phthalates, Musks, Labels & Avoidance That Works
“Fragrance” on a U.S. label can hide dozens of chemicals. DEP tracks perfume use; DEHP is a stronger anti-androgen from plastics—and 35% of people report health effects from fragranced products.
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