Londoners are being asked by the mayor’s office to consider choosing to walk, cycle or take public transport, and to “avoid unnecessary car journeys, stop their engines idling and refrain from burning wood or garden waste”, a spokesperson said.
According to Imperial College London, those with lung or heart problems should reduce strenuous physical exertion, particularly outdoors.
It said older people should also reduce physical activity, and people with asthma may need to use their reliever or inhaler more often.
Wednesday will be the 202nd day of either moderate or high levels of air pollution in London over the past five years, City Hall said.
In total, there have been 15 high pollution days and 186 moderate pollution days since the start of 2018.
The moderate and high daily thresholds are based on the national Daily Air Quality Index (DAQI) from the Department for Environment Food and Rural Affairs (Defra).
https://www.bbc.co.uk/news/articles/ckvzldzegnyo
