The impacts of the COVID-19 lockdown on air pollution in Lombardia

The impacts of the COVID-19 lockdown on air pollution in Lombardia

Da 30.06.2020 15:00 fino a quando 30.06.2020 16:00

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Postato da Amministrazione

https://bit.ly/2YwWW45

Categorie: Sanità, Ambiente

Visite: 287


Speaker: Francesco Granella, RFF-CMCC, European Institute on Economics and the Environment (EIEE)

Moderator: Lara Aleluia, RFF-CMCC European Institute on Economics and the Environment (EIEE)

Abstract

According to economics and medical science literature, health issues are connected to airborne pollutants. However, the complex natural processes underlying this phenomenon are often a drawback for policymakers in designing and implementing interventions aimed at reducing air pollution in urban areas (e.g. traffic restrictions). The complete lockdown which followed the COVID-19 outburst in Italy – during which both people movements and the economy were almost frozen – provides a unique natural experiment to assess the relations existing between local air pollution and different emission sources. This study used machine learning methods to estimate the change in concentrations for major pollutants induced by the lockdown in Lombardy and shows that the lockdown reduced concentrations of nitrogen oxides (NOx), but not fine particulate matter (PM 2.5). This is consistent with the reduction in road traffic, but small changes in emission from building heating. Authors then computed the estimated life-years saved due to the improved air quality.

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ORGANIZED BY:
CMCC Foundation – Euro-Mediterranean Centre on Climate Change
RFF-CMCC European Institute on Economics and the Environment (EIEE)