Cell phone in the end there is a lot of poison detection results scary

Will mobile phones also contain toxic chemicals? In the recent days when manufacturers secretly kept their “secret recipes,” the Healthy Stuff website and dismantling site Ifixit, created by the U.S. Environmental Health Nonprofit Organization Ecology Center, had 36 phones on the market. Disassembled and analyzed their chemical composition. The results showed that even the best-performing mobile phones in this study contained dangerous chemicals that were related to health problems such as birth defects and learning disabilities.

The phone looks bright and bright, but its internal parts are often hidden by many invisible toxic or harmful substances, such as flame retardants, PVC, PVC, bromine, and lead, mercury, cadmium, chromium and other metal substances.

Researchers at both institutions will use the X-ray fluorescence spectrometry (a method for determining the chemical composition of materials) of these dozens of mobile phone parts to detect chemical substances in various parts (such as screens, circuit boards, etc.) of mobile phones. The content is evaluated and comprehensively evaluated. According to the scores of the 12 most common toxic chemicals in mobile phones, the lowest score is 0 and the highest is 5 points. The lower the score, the higher the green performance of the mobile phone.

The final comprehensive evaluation results show that there are 6 types of mobile phones that are "low risk", including Apple's latest iPhone 5; 24 types of mobile phones are "moderately risky"; the remaining 6 types of mobile phones are "high risk", including Nokia's N95 and Apple iPhone 2G.

However, it is worth noting that a good overall assessment does not mean that it performs well in other criteria. For example, although Samsung Reclaim series mobile phones are low in overall risk, the arsenic content is a high-risk product. Of the 36 mobile phones, 24 mobile phones are high-risk category in terms of copper content.

The 36 mobile phones tested were launched in the past five years and covered 10 common mobile phone brands such as Apple, Samsung, Blackberry, LG, Nokia, Motorola and HTC. Jeff Gilhart, director of research at the American Ecology Center and founder of the HealthyStuff website, explained the results of the analysis and said that even the best-performing mobile phones in this study contained dangerous chemicals, these substances and birth defects, learning disabilities and other health problems. related.

Fortunately, the study found that the new mobile phones are more “green” than the old ones. The overall performance of the new generation of mobile phones is about 33% higher than that of the products launched in 2007. Of all the industry leaders, Apple’s iPhone series has seen the most significant improvement. Its iPhone 2G is the worst performing product with the highest levels of harmful substances, while the new iPhone 5 and the iPhone 4S launched last year are the best performers. The product.

In addition, large manufacturers such as Apple, Samsung, and Sony have started to use safer, environmentally friendly raw materials, such as the use of low-risk resin materials, flame retardants, the use of mercury-free liquid crystal panels and arsenic-free glass, use is not Printed circuit boards containing bromine and chlorine, and simplifying product design to reduce the need for wiring.

The level of “toxic” ingredients is often related to the materials, process equipment, production processes, and design options selected by the manufacturer. Apple has gradually reduced the content of toxic chemicals in the past 5 years, making iPhone 5 contain only a very small amount of toxic substances. Just to illustrate this point.