ULEZ: is the tube more polluted than the road?

I take an ELITech TemTop LKC-1000S+ 2nd into London's ULEZ Zone, including travelling on the London Underground Tube Network and on the Buses, plus stand on some of London's busiest roads to get readings. We are constantly told that London has a toxic air health emergency that is dangerous to our health, and that we should abandon our cars and use public transport instead. However, the readings contradict this and some of the numbers will shock you!

I stood in the middle of some of Outer London's busiest roads, took readings inside and outside my 1980s classic BMW, and stood in a park and under the flight path of Heathrow Airport. But most shocking of all are the readings from trains and train stations! You won't believe what I discovered! This is a must-watch and must-share!! We are constantly told that London has a toxic air health emergency that is dangerous to our health and that we should abandon our cars and use public transport instead. However, the readings contradict this and some of the numbers will shock you!

——Shahzad Sheikh

Original Link: 

https://www.youtube.com/watch?v=n01GckFEkck&t=1s

https://www.youtube.com/watch?v=2QJpRrztcDM&t=1813s

The expansion of ULEZ will encourage more Londoners to use public transport. But is that actually a good way to avoid polluted air? We found the PM2.5 level at Oxford Circus was at a hazardous level. PM2.5 is a dangerous pollutant that can penetrate the lung barrier and enter the blood stream.

——@lbc

Stopping the effects of climate change is crucial for several reasons:
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In sum, stopping the effects of climate change is essential to safeguard the planet, its inhabitants, and future prosperity.

——@gecrawlins