Thread by @ERGAerosol

🎉 To celebrate #CleanAirDay, @ERGAerosolScience are sharing the PM dashboard. It shows what PM2.5 is made of at a background location in London every hour of every day aerosolscienceerg.shinyapps.io/Aerosol_Scienc… @ERGImperial @imperialcollege @NPL @metoffice 🧵

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💪 Understanding what PM2.5 is made up of helps us recognise which components may be more detrimental to our health. There isn't quite enough evidence to allow us to prioritise policies to abate one component over another based on health effects bit.ly/3NvoqQN

🔎 PM2.5 comes from a wide range of natural and man-made sources. Measuring what PM2.5 is made of helps us recognise which sources are most important in contributing to the PM2.5 concentrations we are exposed to now and in the future bit.ly/44jUI7h

By understanding which sources are most important we can create the most effective policies to reduce concentrations. We’ve linked up with @metoffice to provide predictions of how the air that is in London at 12:00 every day got there 💨 bit.ly/43JM9Ta

🧪 Measuring the chemical composition of PM2.5 is not straight forward - it needs expensive equipment, and we only have this at our air quality supersites. We measure the organic and inorganic components with the @AerodyneRes ACSM,

Black Carbon with the @MageeScientific Aethalometer and chlorine with the SailBri Cooper XACT. Working with our friends at @NPL we ensure this is of the highest quality. It is complicated so does break down sometimes but we try our best to get it back as soon as possible. 🔧⚙️

📈 We collect data from the measurement equipment every hour into our database and we have data going back to 2019 that you can explore. We’ve put together this quick video to show you how it works clipchamp.com/watch/F55H6vZQ…

We are keen to hear what you think about it. Please let us know so that we can feed it into any future developments 👇 Happy #CleanAirDay!