Estimation of Daytime NO₃ Radical Levels in the UK Urban Atmosphere Using the Steady State Approximation Method

Table 1

Site description.

Site	Situation	Site type	Data series
London Eltham	Situated in the London Borough of Greenwich and surrounded by a number of sports field and a golf course.	Suburban	1997–2012
London, Marylebone Road	Situated 1 m from the busy Marylebone Road in the street canyon with traffic flows of 50000 vehicles per day.	Kerbside	1998–2012
Harwell	Situated in the outskirts of Oxford and surrounded by agricultural fields with a wooded area 25 meters southeast of it.	Rural	2001–2012