AquaStar shrimp may have been exposed to "very low levels of cesium-137," FDA says.

More frozen raw shrimp, some of which are sold at Publix, have been recalled by Seattle-based Aquastar Corp. for possible radioactive chemical exposure.

In an Oct. 17 notice posted by the U.S. Food and Drug Administration, the company is voluntarily recalling a limited amount of shrimp products imported from Indonesia.

The company stated that the recall is due to the products having been "prepared, packed, or held under conditions" that may have exposed them to "very low levels" of cesium-137.

Have there been any illnesses reported?

The recall was announced as a precautionary measure as none of the listed products tested positive for cesium-137, officials noted.

Also known as as Cs-137, it is a radioisotope of cesium, meaning it is a chemical element that emits radiation as it breaks down. It is man-made and is produced by nuclear fission, according to the Centers for Disease Control and Prevention. In the United States, it is used in medical devices and measurement gauges, such as industrial devices that measure the thickness of materials.

Because it is widespread around the globe, trace amounts can be found in the environment, including soil, food and air, the FDA said. Agencies, including the FDA and Customs & Border Protection, test for, monitor and regulate the presence of the substance because of the risks associated with long-term exposure.

Which products are included in the recall?

Products included in the most recent shrimp recall were sold under the brand names AquaStar, Publix, Best Yet and Waterfront Bistro.

A list of recalled items including brand names, product codes and "best by" dates can be found in the embed below or on the FDA's website.

Images of recalled products can be found in the embed below or on the FDA's website.

Other shrimp recalls

The Oct. 17 recall comes after other shrimp brands sold at major retailers like Walmart and Kroger were recalled for the same radioactive chemical contamination concerns.

What should consumers do?

The FDA advises people not to consume the products and to discard them if possible. Additionally, consumers can return the shrimp to the establishment from which they purchased it.

Aquastar could be reached via phone at 800-331-3440.

Contributing: Mary Walrath-Holdridge, USA TODAY

Taylor Ardrey is a news reporter for USA TODAY. You can reach her at tardrey@gannett.com.

This article originally appeared on USA TODAY: More shrimp products, some sold at Publix, recalled over radiation concerns

Reporting by Taylor Ardrey, USA TODAY / USA TODAY

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