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Details of Award

NERC Reference : NE/B503509/1

Heterogeneous chemistry of tropospheric mineral aerosols: kinetics, spectroscopy, reaction mechanisms and surface phenomena.

Grant Award

Principal Investigator:
Professor RM Lambert, University of Cambridge, Chemistry
Co-Investigator:
Dr RA Cox, University of Cambridge, Chemistry
Science Area:
Earth
Atmospheric
Overall Classification:
Atmospheric
ENRIs:
Pollution and Waste
Global Change
Environmental Risks and Hazards
Science Topics:
Atmospheric Kinetics
Tropospheric Processes
Properties Of Earth Materials
Abstract:
Although heterogeneous reactions occurring at the surfaces of mineral dust aerosols are implicated in a number of important processes that affect the chemistry of the troposphere, few directly relevant laboratory studies have been carried out. There is a general lack of basic information about overall reaction rates and mechanisms, the identity and inter-conversion of key adsorbed species and surface phases, and the effects of humidity and solar actinic flux on these properties. By combining the highly complementary expertise of two Cambridge research groups, we aim to elucidate these phenomena in the case of two important systems the formation and destruction of HONO and the destruction of ozone. The methodology proposed is novel and comprises two aspects - measurements of the rate of removal and generation of gaseous reactants and products, respectively, as a function of reaction variables; and direct spectroscopic observations on the mineral surfaces and the species adsorbed on them whose interaction gives rise to the observed heterogeneous chemistry. It is hoped that new quantitative information and fundamental understanding arising from the project will aid the development of improved models for the chemistry of the troposphere.
Period of Award:
1 Oct 2004 - 31 Mar 2007
Value:
£171,319
Authorised funds only
NERC Reference:
NE/B503509/1
Grant Stage:
Completed
Scheme:
Standard Grants Pre FEC
Grant Status:
Closed
Programme:
Standard Grant

This grant award has a total value of £171,319  

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FDAB - Financial Details (Award breakdown by headings)

Total - StaffTotal - T&STotal - Other CostsTotal - EquipmentTotal - Indirect Costs
£70,151£5,096£15,289£48,512£32,270

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