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我不认为美国是一个安静的国家.人听觉最高可以接受30分贝的音量,当室内的持续噪音污染超过30分贝时,人的正常睡眠就会受到

来源:学生作业帮 编辑:作业帮 分类:综合作业 时间:2024/11/06 02:18:26
我不认为美国是一个安静的国家.人听觉最高可以接受30分贝的音量,当室内的持续噪音污染超过30分贝时,人的正常睡眠就会受到干扰.然而据世界卫生组织在新近发表的一份调查报告中说,美国噪音污染问题越来越严重,在美国,生活在85分贝以上噪音污染环境中的居民人数20年来上升了数倍.而持续生活在70分贝以上的噪音环境中,人的听力及身体健康将会受到影响.而我国也是一个噪音污染大国,汽车发动机声、刹车声、防盗器报警声;建筑工地的机械轰鸣声;市场叫卖声、歌舞厅彻夜唱歌声些都经常影响我们的生活和工作.如何控制这些噪音呢?营造隔音林,将噪音污染严重的企业搬离市区.
I do not think the United States is a quiet country.People hearing the highest accepted 30 db to be sound,sustained when the room's noise pollution more than 30 db,the normal sleep will be disturbed.But according to the World Health Organization in the newly released an investigation report that the United States has become increasingly serious problem of noise pollution in the United States,living in 85 decibels above the noise pollution of the environment in the number of people 20 to increase by several times.While continuing to live in 70 dB above the noise environment,human health and the hearing will be affected.Noise and pollution in China is a big country,the car's engine sound,braking sound,burglar-alarm sound; builder roar of the machinery; the market sell voice,dance halls all night singing voice more often affect our lives and work.How to control the noise?Lin create noise,noise pollution will be removed from the urban serious enterprise.