Exposures to Transit and Other Sources of Noise among New York City Residents
Exposures to Transit and Other Sources of Noise among New York City Residents
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DOI：
10.1021/es2025406
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发表时间：
2012-01-03
影响因子：
11.4
通讯作者：
Pearson, Julie M.
中科院分区：
文献类型：
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作者：
Neitze, Richard L.;Gershon, Robyn R. M.;Pearson, Julie M.
为了评估常见噪声源对城市居民和工人年度噪声暴露总量的影响，我们在纽约市 (NYC) 4500 多人的样本中估算了与五种常见噪声源（使用公共交通、职业和非职业活动、MP3 播放器和立体声音响的使用、在家时间和进行其他杂项活动）相关的暴露量。然后，我们评估了每个来源对总噪声暴露的贡献，并将我们的估计暴露量与建议的 70 dBA 年度暴露限值进行了比较。我们发现，十分之一的公共交通使用者仅因公共交通使用而受到的噪音暴露就超过了建议的暴露限值。当我们估计年度总暴露量时，90% 的纽约市公共交通使用者和 87% 的非使用者超出了建议的限制。 MP3 播放器和立体声音响的使用平均只占每个受试者每年总小时数的一小部分，但却是我们评估的大多数城市居民的主要接触来源。我们的研究结果表明，绝大多数城市公共交通乘客可能面临永久性、不可逆转的噪音引起的听力损失的风险，对于许多人来说，这种风险主要是由职业噪音以外的暴露造成的。
To evaluate the contributions of common noise sources to total annual noise exposures among urban residents and workers, we estimated exposures associated with five common sources (use of mass transit, occupational and non-occupational activities, MP3 player and stereo use, and time at home and doing other miscellaneous activities) among a sample of over 4500 individuals in New York City (NYC). We then evaluated the contributions of each source to total noise exposure and also compared our estimated exposures to the recommended 70 dBA annual exposure limit. We found that one in ten transit users had noise exposures in excess of the recommended exposure limit from their transit use alone. When we estimated total annual exposures, 90% of NYC transit users and 87% of nonusers exceeded the recommended limit. MP3 player and stereo use, which represented a small fraction of the total annual hours for each subject on average, was the primary source of exposure among the majority of urban dwellers we evaluated. Our results suggest that the vast majority of urban mass transit riders may be at risk of permanent, irreversible noise-induced hearing loss and that, for many individuals, this risk is driven primarily by exposures other than occupational noise.