在环境评估中评估与项目相关的噪音对睡眠的影响：根据睡眠期间发生的时间对夜间噪音事件应用分贝调整的建议,The Journal of the Acoustical Society of America

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在环境评估中评估与项目相关的噪音对睡眠的影响：根据睡眠期间发生的时间对夜间噪音事件应用分贝调整的建议
The Journal of the Acoustical Society of America ( IF 2.1 ) Pub Date : 2019-10-01 , DOI: 10.1121/1.5137100
David Michaud ₁ , Stephen Keith , Allison Denning ₂

Affiliation

加拿大卫生部正在更新其环境评估噪声评估指南。目前关于睡眠的建议来自世界卫生组织 (WHO)，该建议建议卧室内的平均噪音不超过 30 分贝，噪音事件不超过 45 分贝 LAmax 超过 10-15 次。假设窗户部分打开，这两个限制在室外都会增加 15 dB。也使用了世界卫生组织推荐的室外夜间年平均 40 分贝。常出现两种情况：（1）室外年平均声级超过基线；或 (2) 睡眠期间的事件数超过 15，但刚好低于阈值。在这些情况下，高噪音干扰的估计流行率被用于保护睡眠，因为它包括 10 分贝的夜间惩罚。然而，这可能无法解释在整个睡眠期间观察到的声学阈值的变化。本文提出了两个建议：(1) 对已知阈值较低期间（即第一小时和最后 3 小时）发生的噪声事件应用分贝调整和/或 (2) 得出用于估计烦恼的评级水平使用另一种夜间调整，将夜晚分成不同的时间段。加拿大卫生部正在更新其环境评估噪声评估指南。目前关于睡眠的建议来自世界卫生组织 (WHO)，该建议建议卧室内的平均噪音不超过 30 分贝，噪音事件不超过 45 分贝 LAmax 超过 10-15 次。假设窗户部分打开，这两个限制在室外都会增加 15 dB。也使用了世界卫生组织推荐的室外夜间年平均 40 分贝。常出现两种情况：（1）室外年平均声级超过基线；或 (2) 睡眠期间的事件数超过 15，但刚好低于阈值。在这些情况下，高噪音干扰的估计流行率被用于保护睡眠，因为它包括 10 分贝的夜间惩罚。然而，这可能无法解释在整个睡眠期间观察到的声学阈值的变化。本文提出了两个建议：（1）对期间发生的噪声事件应用分贝调整...... 但仅低于阈值。在这些情况下，高噪音干扰的估计流行率被用于保护睡眠，因为它包括 10 分贝的夜间惩罚。然而，这可能无法解释在整个睡眠期间观察到的声学阈值的变化。本文提出了两个建议：（1）对期间发生的噪声事件应用分贝调整...... 但仅低于阈值。在这些情况下，高噪音干扰的估计流行率被用于保护睡眠，因为它包括 10 分贝的夜间惩罚。然而，这可能无法解释在整个睡眠期间观察到的声学阈值的变化。本文提出了两个建议：（1）对期间发生的噪声事件应用分贝调整......

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Evaluating project-related noise impacts on sleep in environmental assessments: A proposal to apply decibel adjustments to nighttime noise events based on their time of occurrence over the sleep period time

Health Canada is updating its Guidance for evaluating noise in environmental assessments. Current advice on sleep is drawn from the World Health Organization (WHO) which advises that average noise within the bedroom not exceed 30 dBA, and noise events not exceed 45 dB LAmax on more than 10–15 occasions. Both limits increase by 15 dB outdoors assuming partially opened windows. The WHO’s recommended outdoor nighttime annual average of 40 dBA is also used. Two situations commonly arise: (1) the outdoor annual average sound level is exceeded at baseline; or (2) the number of events during sleep exceeds 15, but are just below threshold. Under these situations, the estimated prevalence of high noise annoyance is applied to protect sleep because it includes a 10 dB nighttime penalty. However, this may not account for the variation in the acoustic threshold that has been observed throughout the sleep period. This paper presents two proposals: (1) apply a decibel adjustment to noise events occurring during periods where thresholds are known to be lower (i.e., the first hour and final 3 h) and/or (2) derive a rating level for estimating annoyance using an alternative nighttime adjustment that splits the night into distinct time periods.Health Canada is updating its Guidance for evaluating noise in environmental assessments. Current advice on sleep is drawn from the World Health Organization (WHO) which advises that average noise within the bedroom not exceed 30 dBA, and noise events not exceed 45 dB LAmax on more than 10–15 occasions. Both limits increase by 15 dB outdoors assuming partially opened windows. The WHO’s recommended outdoor nighttime annual average of 40 dBA is also used. Two situations commonly arise: (1) the outdoor annual average sound level is exceeded at baseline; or (2) the number of events during sleep exceeds 15, but are just below threshold. Under these situations, the estimated prevalence of high noise annoyance is applied to protect sleep because it includes a 10 dB nighttime penalty. However, this may not account for the variation in the acoustic threshold that has been observed throughout the sleep period. This paper presents two proposals: (1) apply a decibel adjustment to noise events occurring during periods...

更新日期：2019-10-01

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