Levels of particulate matter pollution were highest onboard Avanti West Coast trains between Euston and Birmingham
Micrograms per cubic metre
PM10
PM2.5
0
10
20
30
40
50
Euston to Birmingham New Street (Avanti West Coast)
Bletchley to Ridgmont/Bedford (West Midlands Trains)
St Pancras to Nottingham (East Midlands Railway)
Marylebone to Birmingham Snow Hill (Chiltern)
Paddington to Bristol Temple Meads (GWR)
Ipswich to Cambridge (Greater Anglia)