![]() ![]() This information is based on Oxford University’s coronavirus government response tracker. For each day, it is indicated below the plot whether there were restrictions or lockdown measure in place in the country where the city is located. The coloured and grey curves allow assessing the changes over time without the distraction of the significant normal variability related to short-term changes in emissions and weather. The dashed grey line corresponds to the seven-day running mean of the median of daily average values of 2017, 20. In addition, the range of daily average values for this location in the CAMS regional reanalyses on the same day of 2017, 20 is shown as a grey shaded area. For more detailed information, please consult your local air quality agency, especially in the case of a pollution peak or a pollution alert.Įach figure has two coloured lines: a solid line corresponding to daily average values and a dashed line of the same colour, which is the seven-day running mean of the former. The values are representative of areas of 10 km x 10 km and cannot reproduce local effects due to the immediate proximity of sources they represent the ‘urban background’, which corresponds to what is measured in a quiet area (for instance a large park) in or around the respective cities. For the capitals and the other largest cities in Europe (50 in total), a time series starting on 1 February 2020 is provided. Media enquiries should be directed to series of surface concentrations of the key air pollutants (NO 2, PM2.5, PM10 and ozone) are useful to assess their variability and to monitor possible trends in their evolution. While CAMS data remains available as usual, this page provides access to graphical products and animations, as well as some answers to questions related to CAMS products and their relevance in the context of the COVID-19 crisis. In addition, we present results from an “emissions scenario”, which uses one of the CAMS regional models to estimate the expected effects of COVID-19 related measures on surface air quality.įor answers to queries about this page or to provide your feedback, please contact our User Support service. Our data can support this research by providing information about the distribution and evolution of fine particulate matter just above the surface. ![]() there is a debate among the epidemiological research community as to whether the virus SARS-CoV-2 (coronavirus) can remain viable on aerosols for three hours or more.Therefore, air quality information is especially important during this period. COVID-19 is an infectious respiratory disease and air quality (including pollens) affects respiratory health.In situations of prolonged lockdown and over time, the expectation is that average levels of air pollution will go down. air quality, being partly determined by emissions of pollutants from human activities (and partly by changes in weather), is an indicator of the level of these activities.In the context of the worldwide COVID-19 crisis, there is increased interest in changing air quality. CAMS is continually monitoring air quality in Europe and around the world using satellite and ground-based observations and advanced numerical models. ![]()
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