Details of Award
NERC Reference : NE/B504873/1
Emission, transport and chemical processing of pollutants within cities (CityFlux).
Grant Award
- Principal Investigator:
- Dr E Nemitz, The University of Manchester, Earth Atmospheric and Env Sciences
- Co-Investigator:
- Professor H Coe, The University of Manchester, Earth Atmospheric and Env Sciences
- Co-Investigator:
- Professor MW Gallagher, The University of Manchester, Earth Atmospheric and Env Sciences
- Co-Investigator:
- Professor D Fowler, UK Centre for Ecology & Hydrology, Biodiversity (Penicuik)
- Grant held at:
- The University of Manchester, Earth Atmospheric and Env Sciences
- Science Area:
- Terrestrial
- Atmospheric
- Overall Classification:
- Atmospheric
- ENRIs:
- Pollution and Waste
- Global Change
- Science Topics:
- Pollution
- Land - Atmosphere Interactions
- Tropospheric Processes
- Biogeochemical Cycles
- Climate & Climate Change
- Abstract:
- In cities pollutants are emitted by a diverse range of individual sources such as vehicle exhausts, heating appliances, building sites and small industrial installations. In addition, particles are lifted from the ground by wind or passing vehicles. Many of these emission processes occur within street canyons. Once in the air, the pollutants start interacting with each other and are subjected to complex transport and transformation processes. The exact processes determine the exposure of humans to air pollutants within the street canyons and the relative amounts that are re-deposited, re-circulate or are emitted to the air aloft. This latter fraction is available for transport out of the city, where pollutants impact on rural air quality, deposition to agricultural and natural ecosystems, visibility and the Earth's radiation budget. For example, urban areas make a significant contribution to the overall particle loading of the atmosphere, partly offsetting the warming potential of the greenhouse gases and may affect climate locally. In this project we aim to study the urban transport and transformation mechanisms at three different spatial scales: At the CANOPY SCALE we will make measurements from towers well above the building height to derive emission fluxes averaged over large urban areas of several square kilometres. At the STREET-CANYON SCALE we will measure the air composition in the street canyon as well as turbulence and fluxes within the canyon and above to derive how human exposure and export out of the street canyon change with meteorological conditions, traffic and street canyon geometry. At the PLUME SCALE we will drive a mobile laboratory, equipped with a number of modern gas and aerosol chemical and physical analysers through individual emission plumes, to measure exhaust gas composition and emission factors under real-life conditions. From the comparison and integration of the results obtained at the different scales, it will be possible to derive how the pollutants behave and transform during their transport through the city. The results will contribute to the formulation of abatement measures that could make cities a cleaner place to live and improve current emission estimates.
- Period of Award:
- 1 Nov 2004 - 31 Oct 2007
- Value:
- £222,768 Split Award
Authorised funds only
- NERC Reference:
- NE/B504873/1
- Grant Stage:
- Completed
- Scheme:
- Standard Grants Pre FEC
- Grant Status:
- Closed
- Programme:
- Standard Grant
This grant award has a total value of £222,768
FDAB - Financial Details (Award breakdown by headings)
| Total - Staff | Total - T&S | Total - Other Costs | Total - Indirect Costs | Total - Equipment |
|---|---|---|---|---|
| £100,854 | £10,255 | £23,848 | £46,392 | £41,419 |
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