The keywords "radioactive shrimp Walmart" are trending because Walmart, along with other major retailers, has issued recalls for frozen shrimp products due to concerns about contamination with a radioactive substance called Cesium-137 (Cs-137).

Here's a breakdown of the background and reasons:

• Discovery of Contamination: U.S. Customs and Border Protection (CBP) initially detected Cesium-137 in shipping containers arriving at several U.S. ports, including Los Angeles, Houston, Miami, and Savannah. These shipments originated from an Indonesian seafood processor, PT Bahari Makmur Sejati (also known as BMS Foods).
• FDA Involvement and Recalls: The U.S. Food and Drug Administration (FDA) then investigated and confirmed the presence of Cesium-137 in at least one sample of frozen breaded shrimp from these imports. Although the detected levels were below the FDA's "levels of concern" for acute hazards, the agency recommended recalls as a precautionary measure due to potential health impacts from long-term, low-level exposure to radiation, such as an elevated risk of cancer.
• Walmart's Action: Walmart subsequently recalled several lots of its "Great Value" brand frozen raw shrimp in numerous states. Other brands and retailers, including Kroger, also initiated recalls of shrimp products from the same Indonesian supplier.
• Source of Contamination: While the exact cause of contamination is still under investigation, international nuclear officials suggest the Cesium-137 likely originated from industrial metal melting activities or scrap metal disposal at the processing facility in Indonesia.
• Public Concern: This situation has led to public concern and a surge in searches for these keywords as consumers seek information about the safety of their food, specific recalled products, and how to identify or dispose of potentially contaminated shrimp.