A few days ago, a batch of 74.25 tons of zircon sand was ordered to be returned by Xiamen Inspection and Quarantine Bureau due to radioactivity exceeding 100 times. This is the first time that the imported zircon sand from Xiamen Port was returned due to serious radioactivity. It is understood that zircon sand with radioactivity exceeding 100 times is rare in the country. This batch of zircon sand is from Africa and Nigeria. It is shared by 4 containers and is ready to be transported to Quanzhou for processing into tile surface glaze opacifier for ceramic production and processing. The Xiamen Inspection and Quarantine Bureau found that the γ-ray dose equivalent rate of this batch of zircon sand exceeded the local environmental radiation background value by more than 100 times. After discovering the problem, the inspector will seal up the four containers that will be shipped the goods, and notify the terminal to isolate and stack them at the first time, and at the same time do radioactive hazard identification to prevent unrelated persons from approaching and immediately inform the relevant port operation department. Zircon sand is widely used in foundry, chemical, ceramic, optical glass and refractory industries. Due to the strong demand in Asia, especially in China, the world zircon sand market is currently in a state of tight supply and demand. Zircon sand is often associated natural thorium, uranium, radium and radioactive elements potassium. These radioactive elements are not only easy to cause cancer, teratogenicity and mutagenicity, and radioactive materials are difficult to destroy and treat. They will cause harm to the human body and pollute the environment in various aspects of transportation and processing, causing long-term pollution to the environment and water quality. The retreat treatment of zircon sand with serious radioactivity exceeding the standard effectively protects the national security. Here, the Xiamen Inspection and Quarantine Bureau reminds import and export enterprises that in the foreign trade contract of zircon sand products, the radioactive limit requirement should be put forward, and the radioactive inspection before shipment should be strictly controlled to avoid economic losses.
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Imported zircon sand radioactivity exceeded 100 times was returned