The following charts illustrate trends in the annual average concentration of NO2, PM10 and PM2.5 as recorded in Camden by reference quality monitors.

Source:  based on London Air and Air Quality England

Source:  based on London Air and Air Quality England

Source:  based on London Air and Air Quality England

The charts above indicate that air quality along the Euston Road is at or well below the UK legal limit for the three pollutants.  This might come as a surprise to those who would prefer that the cycle lane is removed.

 

The following pair of charts illistrate trends in the annual concentration of NO2 measured by diffusion tube as reported in Council's Air Quality Annual Status Reports.
(Prior to 2011, the data has neither been annualised nor adjusted for bias).