Category: Construction and property developers, Air quality assessments

Air quality monitoring

Aether was commissioned by Berkeley Homes to undertake an air quality assessment for the proposed installation of gas fired boilers at 250 City Road.

Aether was commissioned by Berkeley Homes to undertake an air quality assessment for the proposed installation of gas fired boilers at 250 City Road. Dispersion modelling was undertaken and a ‘slightly adverse’ impact on local nitrogen dioxide concentrations was found at worst case locations. Other pollutants were not of concern. One uncertainty in the modelling was the background nitrogen dioxide concentrations, as the data obtained from the nearby background monitoring station differed to that obtained from the Defra background concentration maps. In addition, the current pollution contribution from City Road was also uncertain. Therefore a nitrogen dioxide monitoring survey using diffusion tubes was commissioned to determine the current pollution levels at various points around the development site.

The challenge

At the time of monitoring, the area was a building site and therefore none of the buildings that will be constructed as part of the development were available for monitoring at. The site also needed to be clear of obstructions. Therefore the diffusion tubes were placed around the perimeter of the development site and from this interpolations had to be made. 

The solution

Five diffusion tubes were exposed at the extremes of the site for periods of between 4 and 5 months in accordance with the UK Nitrogen dioxide survey timetable. One location was at first floor level to provide an indication of concentrations above ground level. 

The result

The results indicated that concentrations exceeded the annual mean nitrogen dioxide objective in some residential locations close to City Road, which confirmed the indications provided by the dispersion modelling. Therefore, the installation of NOx/NO2 filters was recommended at these locations.

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Melanie Hobson

Director

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Andreas Pilzecker, DG CLIMA

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Jennifer Anderson, Sustainable Scotland Network

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Alina Novikova, UN/ECE Secretariat

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Sefton Council - for the Merseyside Atmospheric Emissions Inventory

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Alan Hardy, Kyson Design

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“Saint Lucia embraces the professional approach with which this project was undertaken by Aether, particularly their ability to develop mentorship relations with local government experts. This provides a basis for ensuring that the pool of local experts remain engaged and recognized over successive processes.”

Annette Rattigan-Leo, Chief Sustainable Development and Environment Officer

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Fiona Glover, States of Jersey

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Abbas Kitogo, Programme Specialist Energy and Climate Change, UNDP Tanzania

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