Check your freezer: Shrimp sold in 31 states recalled over radioactive threat

(NEXSTAR) — Over 85,000 bags of shrimp are being recalled for potential contamination, marking the latest products to be impacted by a radioactive threat.

In a recall notice published Sunday, the U.S. Food and Drug Administration said three varieties of shrimp sold at Kroger stores in 31 states may be contaminated with cesium-137.

Cs-137 is a product of nuclear fission and is used in medical devices and gauges, the Centers for Disease Control and Prevention explains. It can also be used to gauge "the flow of liquid through pipes," the agency said, and is "present in the environment from weapons testing in the 1950s and 1960s."

At room temperature, Cs-137 is a liquid, but it can become a powder if bonded with chlorides. Used inappropriately, Cs-137 can burn you, cause acute radiation sic