Abstract
Abstract As a scientific consequence of the spread of the COVID-19 pandemic, several initiatives have taken place in order to monitor noise levels trends before and after the lock down phase in several Italian and European cities. In Monza (Italy), since June 2017, a new smart noise monitoring system consisting of 10 sensors developed in the frame of the LIFE MONZA project is continuously measuring acoustic data every second and transmitting them hourly to a dedicated server. The sensors are located both along a main street of the LibertĂ district characterised by high traffic flows and along secondary streets of the district; they are positioned on (preferably sensitive) buildings facades and on streetlamps. In the present paper results of a study concerning changes occurred in noise levels trends before and during the lock down phase for the smart sensors are presented, together with a comparison with noise levels collected by the same sensors in the equivalent months of the previous year. Some preliminary considerations regarding the reliability of the sensors themselves are also provided.
Highlights
The COVID-19 pandemic spread in Europe after a few months of appearance in China and in the Far East countries
In Monza (Italy), since June 2017, a new smart noise monitoring system consisting of 10 sensors developed in the frame of the LIFE MONZA project is continuously measuring acoustic data every second and transmitting them hourly to a dedicated server
The present paper focuses on the analysis of noise data measured in the period prior to, coinciding with and immediately following to the lock down phase in Italy by the smart low-cost sensors installed in the LibertĂ district of the city of Monza (Italy)
Summary
The COVID-19 pandemic spread in Europe after a few months of appearance in China and in the Far East countries. The Provincial Agency for the Protection of the Environment of the Autonomous Province of Trento (APPA Trento) shares the initiative to collect environmental noise levels during the emergency by COVID-19, launched by AIA, carrying out extensive monitoring over the provincial territory both to document the acoustic climate of the province and to assess the acoustic impact of the protection measures adopted during the health emergency As another example, in the city of Turin data from the noise monitoring network, managed by the City and Arpa Piemonte, were analysed to obtain a first quantitative evaluation of the acoustic effects induced by the restrictions in urban areas.
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