The Smogmobile results

On Wednesday, 13th April the Smogmobile travelled across Southampton, measuring nitrogen dioxide (NO2) and particulate matter (PM10) as it went. It started at Tesco, Bursledon at 8am, went along the A3024 past Thornhill and towards Bitterne. It turned right up Bullar Road and left down Cobden Avenue and then over Cobden Bridge to Portswood.

From Portswood, it went via Onslow Road to Jury’s Inn and then turned north up The Avenue and left into Archers Road to Hill Lane. At Hill Lane the Smogmobile turned north and went as far as the Sports Centre roundabout and then left along Winchester Road to the lights at the Romsey Road/Shirley High Street crossroads. Here it turned left and went the whole length of Shirley High Street and Shirley Road to Four Post Hill and then past the Civic Centre and Asda, under the West Quay tunnel and down Castle Way where it turned left into Below Bar and parked up at West Quay for press interviews and filming.

Early afternoon, the Smogmobile went back to the Civic Centre via the West Quay tunnel and then back up Shirley Road and Shirley High Street, along Romsey Road to Lordshill and turned left along Brownhill Road to the M271, where it turned left to Redbridge roundabout and then left towards Millbrook roundabout, where it turned left and drove into Millbrook Estate. It went along Kendal Avenue to Cuckmere Lane and Redbridge Community College. Then it returned to Central Station via the A33 and did a u-turn back along the A33 to Redbridge roundabout and exited the City on the M271.

The data produced by the Smogmobile is shown in the attached maps and charts. The Managing Director of Enviro Technology, which supplied the Smogmobile said:

Our observations show that the average NO2 concentration over the day (between 8am to 3:30pm) of all the routes we drove and during the time we were parked up at West Quay was 63.15 µg/m3, which is over 50% higher than the annual limit value of 40 µg/m3.

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