Anthropogenic noise variation in Indian cities due to the COVID-19 lockdown during March-to-May 2020.

J Acoust Soc Am · 2021 · PMC8669881 · PMID 34852599

Europe PMC DOI

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a decreasing trendno p-value reported

Their analysis was based on studying the daily equivalent day- and night-time level variation at locations spread across the city, and a linear least squares fit indicated a decreasing trend.

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