On January 21, the "Rumors Seeking Truth - 2023 'Science' Rumors and Truth List" was officially announced on the Science and Education Channel of Beijing Radio and Television Station. The Institute of Analysis and Testing of the Beijing Academy of Science and Technology (hereinafter referred to as the "Institute of Analysis and Testing") participated in the recording of the program as a supporting unit of the event, and Dr. Zhang Mei of the Institute of Analysis and Testing refuted the rumor that "the water boiled by the electric kettle damages nerves and causes cancer".
Poster for the event.
The event was hosted by the Beijing Association for Science and Technology and the Cyberspace Administration of the Beijing Municipal Party Committee, and organized by Beijing Science and Technology Reporter and Editor, Beijing Youth Daily Internet Communication Technology and Beijing Radio and Television Station. From January to December 2023, the organizer of the event will screen and evaluate the annual "scientific" rumors according to the principles of rumor popularity, harmfulness and field, and the Beijing Municipal Association for Science and Technology will finally review and approve the annual "scientific" rumor truth-seeking list. As a municipal public welfare scientific research unit, the analysis and testing institute has long assisted TV stations, newspapers and other enterprises to carry out popular science activities, and has carried out simulation experiments and detection and analysis in the popular science publicity, invited by the organizer this time, for the rumor that "the water boiled by the electric kettle damages nerves and causes cancer".
Laboratory sample testing.
The test report is displayed.
Through the analysis of the rumors on the Internet, the laboratory found that the rumors were mainly aimed at stainless steel electric kettles, which believed that stainless steel contained manganese, and manganese elements would be precipitated in the process of boiling water, which would cause damage to human nerves and cause cancer. In this regard, the researchers used three stainless steel electric kettles of different brands to simulate the normal boiling process, and boiled and cooled water samples to test the manganese content. The results showed that no manganese was detected in the boiled water of the stainless steel kettle (the manganese content was lower than the method detection limit of 0.).06ug l), and the limit of manganese in the sanitary standard for drinking water is 100ug l, indicating that manganese is not easy to precipitate from stainless steel in the daily boiling process.
Live interpretation to shatter rumors.
In the program, Dr. Zhang Mei explained to the public the test results and the safety of boiling water in stainless steel kettles, shattered the rumor that "water boiled by electric kettles damages nerves and causes cancer", and suggested that everyone should pay attention to the product identification when purchasing products, choose regular products that meet relevant standards, ensure product safety, and protect everyone's life and health.
Institute of Analytical Testing).