Smoke problem from neighbours

[MikeSharp01]

6 hours ago, Brian K said:

(200-300 µg/m³ PM2.5

That is around 50 times the WHO limit (5 µg/m³ since 2021)

[SteamyTea]

1 hour ago, MikeSharp01 said:

That is around 50 times the WHO limit (5 µg/m³ since 2021)

[Brian K]

The WHO limits are based on yearly average values which are basically pointless in many Western European countries. The background air quality is generally reasonable but many locations suffer from nightly spikes in PM2.5 due to the burning of solid fuels (mainly coal and wood). Therefore the authorities can point to broad compliance with the yearly limits but people are exposed to extremely high PM2.5 concentrations especially during times of cold, still weather where the emissions are not dispersed by the wind.

 

I have my sensor set to turn off the MVHR when the PM2.5 value goes above 25µg/m³ for five minutes and to turn back on once it goes below 25µg/m³ for five minutes.