BMC Public Health:你的手机在悄悄损害你的听力

2018-05-22 BMC中国 BMC期刊

BMC Public Health近日发表的研究发现,声压级在各种智能手机型号和音乐类型之间有所不同。这项研究的作者呼吁针对所有设备建立听力损失风险警告的统一分贝标准。

BMC Public Health近日发表的研究发现,声压级在各种智能手机型号和音乐类型之间有所不同。这项研究的作者呼吁针对所有设备建立听力损失风险警告的统一分贝标准。

损害听力

世界卫生组织已发出警告,由于在嘈杂的娱乐场所频繁暴露于高噪音水平以及不安全地使用个人收听设备,数以百万计的青少年和年轻人处于听力损失风险之中。

智能手机提供了一种免费下载音乐的途径,并且可以在没有音质失真的情况下以最大音量收听。然而这意味着如果没有采取必要的预防措施,将会有更多的人遭受听力损失的风险。

最大噪音暴露水平

一些国家提出了个人聆听设备的最大噪音暴露水平,以防止噪音引起的听力损失,但这些通常为适用于职业噪音诱发的听力损失标准。例如,美国职业安全与健康管理局已将任何声音的每日安全音量水平限制在85分贝(dB)、八小时以内,加拿大联邦法规将声音暴露水平限制在87调整分贝(dBA)且不超过八小时。

智能手机的声压级

在近日发表在BMC Public Health的研究报告中,韩国翰林大学的Woojae Han和Gibbeum Kim在智能手机可能造成听力损失的高音量水平测量了四种音乐类型的声压级,然后在不同类型的智能手机之间进行了比较。

为此,他们从韩国最受欢迎的三家智能手机品牌中各选择了两个型号:三星Galaxy S6和Galaxy Note 3、苹果iPhone 5S和iPhone 6以及LG G2和G3。他们针对四种类型的音乐,分别在引发听力损失风险警告(如果存在)和最大的音量水平下使用声级计测量声压输出。

研究人员发现,发出第一次听力损失警告的最高音量为LG G2手机的92.4dBA,而最低音量为三星Galaxy S6的84.1dBA。iPhone 6最大音量警报的水平最高,为113.1dBA,而Galaxy Note 3最低,为107.03dBA。

韩博士和金博士还研究了来自不同音乐类型的声压输出,包括三种流行音乐(流行舞曲、嘻哈音乐和流行民谣)以及美国流行音乐排行榜,并发现了流行舞曲在所有智能手机中最高音量输出水平最高,为91.1 dBA。

该研究证实,六种智能手机的最低风险音量声压级相差8dB,表明了建立安全使用个人收听设备的国际标准的需求。

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    2018-07-20 shizhenshan
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    2018-05-24 ysjykql
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    2018-05-23 Morem

    学习了 谢谢

    0

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    2018-05-22 有备才能无患

    BMCPublicHealth近日发表的研究发现.声压级在各种智能手机型号和音乐类型之间有所不同.这项研究的作者呼吁针对所有设备建立听力损失风险警告的统一分贝标准.

    0

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    2018-05-22 1e1b8538m79(暂无匿称)

    不错的视频值得拥有哦

    0

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