Assess the level of noise pollution that may adversely impact wildlife.
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Identify areas of concern within the city where sources of noise (ports, underwater acoustic deterrents, pile-driving, busy streets, airports, railways, industry, etc.) are near to natural habitats, including marine habitats. Count occurrences of noise above 55 dB on land (or 170 dB underwater) in at least 5 outdoor locations within the areas of concern for at least 30 minutes each during the noisiest period of a typical day (Benliay et al., 2019).
A noise map of the areas of concern can be used in lieu of these measurements to report on the extent of natural habitats adjacent to sources of noise above 55 dB on land or 170 dB underwater.