Core Viewpoint - Recent incidents at Dalian Zhoushuizi Airport customs have highlighted the risks associated with travelers carrying items containing radioactive materials, specifically thorium-232, which is classified as a Group 1 carcinogen by the World Health Organization [3][5]. Group 1: Incident Reports - A traveler triggered an alarm at customs due to a pendant that emitted radiation levels of 168.6 μSv/h, exceeding the background radiation level by 1686 times [3]. - In December 2019, another traveler was found with a "quantum energy resonator" containing thorium-232, with radiation levels at 112.4 μSv/h, exceeding the standard by 1120 times [5]. - In 2023, customs detected a "health stone" that exceeded radiation levels by 1050 times [7]. Group 2: Health Risks - Experts indicate that prolonged exposure to high radiation levels can increase the probability of adverse health effects, including cancer, although individual responses may vary [11]. - The dangers of carrying unknown "energy stones" are emphasized, with warnings against potential scams and illegal activities disguised as health products [11]. Group 3: Regulatory Actions - Customs authorities are mandated to handle cases of excessive radioactive materials by either transferring them to relevant departments or ordering their return [5]. - Travelers are advised to be aware of the composition of items purchased abroad to avoid carrying radioactive materials into the country [5].

Core Viewpoint - The article highlights the potential health risks associated with popular "energy stones" and "health stones," emphasizing the dangers of certain jewelry items that may contain toxic substances or pose health hazards [2][3]. Group 1: Health Risks of Popular Items - A customs inspection at Dalian Zhoushuizi Airport revealed a bag of "health stones" with a radiation level of 105 microsieverts per hour, exceeding the background value by 1050 times, equivalent to the radiation from one chest X-ray [3][4]. - A traveler experienced frequent nosebleeds while wearing an "energy stone" for three months, raising concerns about the health implications of such items [5][6]. Group 2: Specific Jewelry Items to Avoid - **1) Xiangsi Bean**: Often mistaken for the red bean in poetry, Xiangsi beans (also known as chicken mother beads) can be toxic if their outer shell is compromised, potentially leading to severe poisoning symptoms [8][12]. - **2) Walnut Bracelets**: While popular among various age groups, walnuts can easily mold, producing aflatoxins, and some vendors may use harmful chemicals to clean them, posing skin irritation risks [13][16][17]. - **3) Dyed Agate**: Many low-cost, brightly colored agate pieces are actually dyed with toxic chemicals like potassium nitrate and silver nitrate, which can accumulate heavy metals in the body and may lead to cancer or genetic mutations [20][22][25]. - **4) Imitation Jewelry**: Made from inexpensive alloys, imitation jewelry may contain harmful metals like lead and nickel, which can cause skin reactions and long-term health issues if absorbed through the skin [26][29][31].