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据英国《欧洲化学新闻》报道,英国医学研究委员会(MRC)的科学家试验证明,在噪声大的环境中工作的人员,如果长期接触对神经有毒的化学品,他们的脑损伤将更加严重。研究人员还认为,加重脑损伤的不仅仅是噪声,其他一些因素如不停地走动、连续闪光和振动加快了大脑某些部分的代谢活动,使大脑更易于受化学品的毒害。所以,毒性试验标准和暴露极限均应把上述因素考虑在内,加以修改。 MRC研究小组的人员让大白鼠暴露于神经毒素1,3—二硝基苯中,控制声音大小,脑损伤较轻。
According to the British “European Chemical News” reported that the British Medical Research Council (MRC) scientists test shows that people working in noisy environments, long-term exposure to neurotoxic chemicals, their brain damage will be more serious. The researchers also believe that aggravating brain damage is more than just noise; other factors, such as constantly moving, continuous flash and vibration, speed up metabolic activity in certain parts of the brain, making the brain more vulnerable to chemicals. Therefore, the toxicity test standards and exposure limits should take into account the above factors, be amended. The MRC research team exposed rats to neurotoxin 1,3-dinitrobenzene to control the size of the sound and lessen brain damage.