Power Shutoffs Linked to Higher Respiratory Health Risks
Californians with chronic respiratory conditions face increased emergency risks during planned power shutoffs.
Updated on Oct. 27, 2026 in Asthma
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A new study links California public safety power shutoffs to increased emergency room visits and hospitalizations for respiratory conditions. The findings highlight significant health risks for residents relying on electricity-dependent medical equipment during outages, especially when combined with wildfire smoke.
Why it matters
Utilities often use planned power shutoffs to prevent wildfires, but these outages prevent the use of air filtration and temperature control systems. This creates a critical health challenge for Californians with chronic lung conditions who rely on home medical technology.
This retrospective analysis examined health data across 1,504 California zip codes between 2013 and 2019. It found a correlation between planned power outages and increased respiratory-related hospital visits, an effect that intensified when outages coincided with wildfire smoke events.
The players
PLOS Medicine
A peer-reviewed, open-access medical journal that publishes original research on health and disease.
The details
Public safety power shutoffs are implemented by electric utilities to de-energize power lines and reduce wildfire ignition risks. When power is lost, residents cannot operate indoor air filtration systems, refrigerators for medications, or air conditioners that manage indoor air quality. The study observed that these outages disrupt the standard of care for patients who require oxygen concentrators and other electricity-dependent medical devices to breathe.
Timeline
2013-2019: The period analyzed for power shutoff and health data.
October 27, 2026: The study was published in PLOS Medicine.
Health Landscape
California public safety power shutoffs are a core part of state wildfire mitigation strategies aimed at preventing catastrophic ignitions. This study marks a shift in how experts evaluate these policies by accounting for the acute respiratory risks they may inadvertently create for the public.
If you rely on electricity-dependent medical equipment, discuss a backup power plan with your doctor to ensure continuity of care during potential outages. It is also worth asking your primary care physician about specific indoor air filtration strategies for your home before wildfire season begins.
The takeaway
Planned power outages correlate with increased respiratory complications for vulnerable patients, particularly during wildfire events. Review your home emergency preparedness plan with your medical team to ensure you have a safe, reliable backup strategy for any critical electrical equipment.
Further reading
For more on managing lung health during environmental changes, see Asthma.
More information
Read the full study on power outages and health in the journal PLOS Medicine.
Source note: This article includes information reported by News-Medical.
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