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Maui wildfire survivors show elevated metal levels and impaired lung function

ABC News reports that researchers linked elevated toxic metals to respiratory damage following the 2023 disaster.

The short version

  • University of Hawaii researchers tested 1,400 adult residents living near the 2023 Maui wildfires and identified elevated levels of toxic metals.[ABC News]
  • Higher metal concentrations correlated with abnormal lung function, including reduced capacity and airflow difficulties.[ABC News]
  • Antimony concentrations were nearly 40 times higher than national benchmarks, alongside elevated manganese, barium, and arsenic.[ABC News]
  • Researchers caution that lacking pre-fire baseline data makes it impossible to separate disaster exposure from background environmental or dietary sources.[ABC News]

Key facts

  • A study in the Proceedings of the National Academy of Sciences examined urine samples from 1,400 adults living near the Maui wildfires up to 18 months after the disaster.[ABC News]
  • Antimony levels were nearly 40 times higher than national biomonitoring benchmarks, while manganese was 3.8 times higher, barium 2.3 times higher, and arsenic 2.2 times higher.[ABC News]
  • Elevated metal concentrations were linked to abnormal lung function, including diminished breathing capacity and airflow obstruction on standard tests.[ABC News]
  • Respiratory effects varied by geography, matching patterns of smoke and ash across Lahaina, Wailuku, Kahului, and Kula.[ABC News]

What remains uncertain

  • Because no comparable data exists from before August 2023, researchers cannot assess how much exposure stemmed directly from the fires versus diet, local geology, or historic agricultural and industrial activity.[ABC News]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.