External Positions
- Member, Quantification Working Group on Nitrogen Dioxide (sub-group of Committee on the Medical Effects of Air Pollutants), Public Health England, 2015 - 2018
- Chair, Working Groupon Quantification of Effects of Ozone on Health:short-term coefficients and long-term exposure andmortality in the United Kingdom(Sub group of Committee on the Medical Effects of Air Pollutants), Public Health England, 2014 - 2015
- Member, Medical Effects of Air Pollutants, Public Health England, 2013 - 2023
- Advisor, Irish Environmental Protection Agency air pollution and health research project steering committees
- Chair, Quantification of Air Pollution Risk Sub-group of the Committee on the Medical Effects of Air Pollutants, Public Health England
- Member, Working Group on Chronic Bronchitis (Sub Group of Committee on the Medical Effects of Air Pollutants), Public Health England - 2016
- Temporary Adviser, World Health Organisation meetings on Air Pollution, World Health Organisation Regional Office for Europe
Membership of Professional Bodies
- Member, International Society of Environmental Epidemiology