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[YesAuto News] On July 23, the China Automobile Health Index Management Center released the evaluation results of the first batch of models of the China Automobile Health Index (C-AHI) in 2020. A total of 5 models were released this time, namely Dongfeng Nissan Teana (2019 2.0L XL Comfort Edition), SAIC-GM Buick Regal (2019 GS 28T Premium National VI), FAW-Volkswagen Audi Q5L (2020 Model 40 TFSI Honor Enterprising type), FAW Toyota RAV4 (2020 2.0L CVT two-wheel drive fashion version) and Great Wall WEY VV6 (2021 2.0T two-wheel drive wisdom plus). Four of the released models are joint venture brands and one is for China Brand.

In the volatile organic compound (VOC) test in the car, the benzene health hazard index in the car scored higher under normal temperature, light, and ventilation conditions. The deduction points for the comprehensive pollution index were mainly concentrated in the light condition. Comparing the evaluation results of models with five-star evaluation and four-star evaluation, the difference is mainly from the health hazard index of formaldehyde under normal temperature conditions, but this does not mean that formaldehyde cannot be controlled. It was found in the test that some models were in normal temperature conditions. The amount of formaldehyde emission is only 10% of the national standard limit, and the amount of formaldehyde emission is low even under high temperature conditions.

In the car interior odor intensity (VOI) test, most of the car's interior odor intensity under normal temperature and light conditions is equivalent to the overall evaluation result in 2019, but judging from the analyzer's spectrum, this batch of evaluation vehicles The types of air harmful to human health and high-intensity odor substances are significantly reduced. Alkanes (straight-chain, branched-chain, cycloalkanes) are the main components of VOC substances in the car, which are less harmful to health. Although some esters, ethers, and alcohol compounds have been detected, regardless of type or content From the above point of view, all models have been greatly improved compared to the models evaluated in the same period last year.

In the electromagnetic radiation (EMR) evaluation, the results of the electromagnetic radiation evaluation have been significantly improved compared with last year. At the same time, in response to the concerns of consumers, the Health Index has carried out evaluation and research on the electromagnetic radiation conditions of the “central control large screen area”. The study found that the low-frequency magnetic field radiation in the large-screen area of the vehicle's central control panel was at the low noise level of the measuring equipment, and the size of the central control screen was not significantly related to the size of the low-frequency magnetic field radiation. This shows that the saying that “large screens have a lot of radiation and are harmful to the body” circulating on the Internet is not scientific.

It is worth noting that with the continuous in-depth study of the automobile health index, the index evaluation procedures are also further improved. The China Automotive Health Index (PM) test and evaluation procedure has been solicited on the official website and will be officially released in the near future; the car sensitization risk (VAR) test and evaluation procedure has also passed several rounds of technical seminars and expert reviews. The draft for comments will also be posted online this year for comments, and the evaluation dimensions of the auto health index will be more comprehensive and diversified in the future. (Compilation/Car House Li Na)