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My research interests lie in the field of air pollution impacts on ecosystems particularly focusing on nitrogen deposition. I provide underpinning atmospheric science support to UK stakeholders including pollution regulators and nature conservation practitioners. My work has included the design and development of application tools, knowledge systems and screening models in the area of impact assessment. In addition I provide guidance and advice on mitigation measures for ammonia emissions from agriculture, and have conducted research into the effects of using trees in the landscape to mitigate
I am leader of the Atmospheric Composition Change group in the Atmospheric Chemistry and Effects Science Area of UKCEH. My research interests cover remote, rural and urban air pollution with a focus on ammonia, particulate matter (PM) and other reactive nitrogen species. I am involved in the UNECE Task Force for Measurement and Modelling and the CEN WG11 on developing a European standard for ambient ammonia passive samplers and CEN WG42 air quality sensors.
Ammonia from livestock farming harms air quality but receives less attention than greenhouse gases (GHG). We describe mitigation measures that can be taken now, providing tools to support adoption. We check trade-offs between measures targeting ammonia and those targeting GHG, filling knowledge gaps. Replacing models by measurements should improve monitoring, so we test emerging technologies for measuring farm ammonia emissions.
Micrometeorological measurements of gases and aerosols exchange between land and atmosphere at different environmental ecosystems. Application and development of measurement techniques/instruments to investigate gas and aerosol processes in the atmosphere.
My current role at CEH is to lead the development an atmospheric chemistry transport model to simulate the atmospheric composition, and atmosphere surface exchange of pollutants in the UK and Europe; for long term averages (multiple years) and for specific pollution episodes (hours).
Spatial modelling of atmospheric emissions, concentrations, deposition and effects at national and landscape scales; atmospheric pollution; nitrogen, ammonia, agricultural and non-agricultural emissions of nitrogen and greenhouse gases, assessment of mitigation measures including spatial targeting of mitigation near sources and sensitive receptors.
I am an Environmental Physicist, leading the Group ‘Biosphere-Atmosphere Exchange & Effects’ within the Science Area 'Atmospheric Chemistry & Effects' at CEH's Edinburgh site. My work encompasses the measurement of surface / atmosphere exchange fluxes of a wide range of trace gases and aerosols, using micrometeorological flux measurement approaches. This includes fluxes of reactive nitrogen compounds (NH3, HNO3, NO, NO2, HONO), greenhouse gases (CO2, N2O, CH4), volatile organic compounds (VOCs), ozone, sulphur dioxide and aerosols (total number, size-segregated and chemically resolved for NH4+
Burning biomass (for example, logs) for domestic heating can release fine particles, causing respiratory and cardiovascular disease. This project addresses three questions: how much domestic biomass burning takes place in Scotland, how much pollution does this cause, and does it impair human health? These questions are addressed using novel measurement methods as well as modelling.
All communities in Scotland face water-related challenges but remote and coastal communities may face different challenges to those in urban areas, for example, difficulty in connecting to water mains supply or increased vulnerability to changes in distribution. This project aims to identify perceptions of water issues, exemplars of community action, and linkages between national & local policy, for better management of water resources in coastal areas.
My research background focuses on behavioural and population ecology in the marine and coastal environments. My main interests are in individual and/or geographical variation, how these scale up to the population or ecosystem level, and the implications for conservation and policy. I also have developed work around science communication, stakeholder engagement, and citizen science. I am interested in how people create, learn and benefit from scientific knowledge and understanding, and how we can improve our processes and systems.