Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 599, Issue -, Pages 1191-1201Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2017.04.229
Keywords
Anthropogenic noise; Continuous noise; Decibel duration curve; Intermittent noise; Land use; Sound pressure levels
Categories
Funding
- National Science Foundation [IOS-1257699]
- Western Michigan University
- Direct For Biological Sciences
- Division Of Integrative Organismal Systems [1257699] Funding Source: National Science Foundation
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Continuous and intermittent noise may have different effects on humans and wildlife, therefore distinguishing temporal patterns of noise and their drivers is important for policy regarding both public health and wildlife management. We visualized patterns and explored land-use drivers of continuous and high-amplitude intermittent sound pressure levels (SPLs) on an urban campus in Michigan, U.S.A. To visualize patterns of SPLs, we introduce decibel duration curves (DDCs), which show the cumulative frequency distribution of SPLs and aid in the interpretation of statistical SPLs (L-n values) that reflect continuous versus intermittent sounds. DDCs and L-n values reveal that our 24 recording locations varied in the intensity of both continuous and intermittent noise, with intermittent high-amplitude sound events in particular contributing to variability in SPLs over the study site. Time of day influenced both continuous and intermittent SPLs, as locations relatively close to manmade structures (buildings, roads and parking lots) experienced higher SPLs as the day progressed. Continuous SPLs increased with decreasing distance to manmade structures, whereas intermittent SPLs increased with decreasing distance to roads and increasing distance to buildings. Thus, different land-use factors influenced patterns of continuous and intermittent noise, which suggests that different policy and strategies may be needed to ameliorate their effects on the public and wildlife. (C) 2017 Elsevier B.V. All rights reserved.
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