The drying of the Great Salt Lake is creating a silent health crisis as exposed lake beds release toxic dust into the air breathed by Utahns, according to a September 9 report.
As the lake shrinks, windstorms lift fine particulate matter from the playa and carry it into population centers along the Wasatch Front. This dust can penetrate deep into lung tissue, potentially causing respiratory illness, cardiovascular stress, and other health issues.
The exposed lake bed serves as a source of windblown dust containing naturally occurring heavy metals and contaminants accumulated from decades of industrial activity. These contaminants include arsenic, lead, and uranium.
Scientists have expressed concern regarding lake bed dust samples that exceed federal guidelines for lead exposure in surrounding communities. While arsenic is a known carcinogen, the presence of radioactive elements like uranium and radium adds a long-term hazard through cumulative radiation exposure.
There is currently no available technology to cap the exposed lake bed or prevent wind from mobilizing the contaminated sediment.
Rising regional temperatures are compounding the issue by accelerating evaporation. Conditions for the upcoming summer are projected to be even hotter, which may lead to accelerated evaporation and intensifying dust events.
