The At-Bristol Science Centre (AtB) roof top site is used in the GloCAEM project by the University of Bristol.

The AtB Site is an urban site rooftop site on the @Bristol Science Centre building in the City of Bristol Harbourside (12m a.s.l). The building is large and has a flat roof (approx. 20m above ground level), the instruments are mounted on 2 m poles at the edge of the top roof.
The science centre is near the centre of the City of Bristol (population 440,000), close to Anchor Road and is likely to have high levels of pollution due to heavy traffic. Address is At-Bristol, Anchor Road, Harbourside Bristol, BS1 5LL

The site contains a JCI131F electric field mill, and Gill MaxiMet GMX501 and GMX100 weather stations. There are plans for pollutant gas measurements at this site (CO and O3) from summer 2016.