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Noise and the air pollution data during the lockdown period and loosening of restrictions through five phases in 2021 are examined for a school site in the United Kingdom. Hourly and daily average noise level as well as the average over each phase, correlations between noise and air pollutants, variations between pollutants, and underlying reasons explaining the temporal variations are explored. Some strong linear correlations were identified between a number of traffic-sourced air pollutants, especially between the differently sized particulates PM1, PM2.5, and PM10 (0.70 &amp;lt; r &amp;lt;0.98) in all phases and an expected inverse correlation between nitrogen dioxide (NO2) and ground-level ozone (O3) (\u20130.68 &amp;lt; r &amp;lt; \u20130.78) as NO2 is a precursor of O3. Noise levels exhibit a weak correlation with the measured air pollutants and moderate correlation with meteorological factors, including wind direction, temperature, and relative humidity. There was a consistent and significant increase in noise levels (p &amp;lt; 0.01) of up to 3 dB with initial easing, and this was maintained through the remaining phases.<\/jats:p>","DOI":"10.1121\/10.0009323","type":"journal-article","created":{"date-parts":[[2022,2,8]],"date-time":"2022-02-08T13:26:25Z","timestamp":1644326785000},"page":"881-887","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":9,"title":["Noise and air pollution during Covid-19 lockdown easing around a school site"],"prefix":"10.1121","volume":"151","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2462-4411","authenticated-orcid":false,"given":"Prashant","family":"Kumar","sequence":"first","affiliation":[{"name":"Global Centre for Clean Air Research (GCARE), Department of Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences, University of Surrey , Guildford GU2 7XH, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2865-5319","authenticated-orcid":false,"given":"Hamid","family":"Omidvarborna","sequence":"additional","affiliation":[{"name":"Global Centre for Clean Air Research (GCARE), Department of Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences, University of Surrey , Guildford GU2 7XH, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3678-3516","authenticated-orcid":false,"given":"Abhijith Kooloth","family":"Valappil","sequence":"additional","affiliation":[{"name":"Global Centre for Clean Air Research (GCARE), Department of Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences, University of Surrey , Guildford GU2 7XH, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9757-4929","authenticated-orcid":false,"given":"Abigail","family":"Bristow","sequence":"additional","affiliation":[{"name":"Global Centre for Clean Air Research (GCARE), Department of Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences, University of Surrey , Guildford GU2 7XH, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"231","published-online":{"date-parts":[[2022,2,8]]},"reference":[{"key":"2023081003065976200_c1","unstructured":"AQMesh (2020). 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