After Hurricane Helene, Cascade Of Health Effects From Mold Spreading Across NC
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In the wake of the rains and floods that have repeatedly inundated the Southeast, mold is growing harder to avoid and harder to eliminate. Climate change and the impacts it brings — heavier precipitation, frequent flooding, and increased heat and humidity — are creating the perfect petri dish for mold to thrive, exposing more people to its health impacts. Despite its prevalence, mold receives shockingly little study. It is expensive to fix, largely untracked as a public health issue, and subjected to building codes and housing safety regulations that lag behind a problem that is no longer confined to the aftermath of disasters. As mold’s ideal conditions grow more prevalent, it remains a big gray area in public knowledge, and both state and federal policy.
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Understanding the full, moldy picture requires more than expertise in microbiology. It also takes engineers and architects to understand how mold affects structures and test mold-resistant building materials while others analyze fungal DNA and chemical emissions. That’s why the CLIF team takes a multidisciplinary approach and includes engineers and architectural experts. “For scientists,” Gusa said, “we have, like, tunnel vision.” By working together, the team can connect the dots between flooding, building conditions, fungal growth, and human health — an approach that a single-discipline study could easily miss.
Gusa said the team is still studying the fungi the CLIF team found in Black Mountain (Ed. - NC town damaged by Hurricane Helene). So far they’ve identified 65 species, from common varieties often found in water-damaged environments like aspergillus to more mycotoxic examples like Penicillium citrinum. The next step, she said, is to determine if the species are in fact as dangerous to human health when they grow on different building materials. “We plan to test whether these ‘opportunistic fungi’ are resistant to antifungal drugs used to treat disease,” she added in a follow-up email.
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Asheville remediation expert Dylan Hunt, who works for a company called Green Home Solutions, has seen extreme weather cause an explosion of household mold. After Helene, he saw black mold appear in places it hadn’t before. Even minor flooding can trigger growth within 24 to 48 hours if it isn’t cleaned up immediately — and when water damage goes unnoticed, mold can continue spreading for months. Depending on how much water a home takes on and how humid it stays inside, spores can spread throughout an entire house within weeks, turning what might have been a small cleanup into a much larger problem. The crisis grew worse over the summer. The region saw a long stretch of hot, humid weather, including Asheville’s hottest July on record (tied with the summer of 1993). Homes that hadn’t experienced flooding started smelling musty, and Hunt’s phone began ringing with complaints of damaged furniture, headaches, and coughs. Drainage pathways shifted after Helene, changing how water moves through the area. Now even light rain can cause water intrusion in some homes.
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https://grist.org/health/in-a-hotter-wetter-south-theres-a-health-crisis-spreading-inside-the-walls/