The core Environmental Exposures Group consists of:


Dr John Gulliver (Senior Lecturer in Environmental Science & Group Leader)

John has over twenty years of experience in geographical studies of environment and health, with particular expertise in using geographical information systems (GIS) to model exposures to air pollution and noise pollution. His research interests extend to innovative methods in using GIS for personal exposure modelling and modelling historic air pollution exposure for use in studies on lifecourse epidemiology. John is work package leader for air pollution exposure assessment in FP7 EXPOsOMICS, and work package leader for noise pollution in the NERC/MRC TRAFFIC study. John is currently co-investigator on ten other grants with funding from Health Effects Institute, NERC, MRC and NIHR.


Dr Susan Hodgson (Lecturer in Environmental Epidemiology and Exposure Assessment)

Susan has a particular interest in exposure assessment, spatial epidemiology, routine health data analysis and biomarkers of exposure and effect. Her research includes linking heavy metal exposure and kidney disease, using routine health data to investigate health impacts of sources of pollution or suspected clusters, and exploring spatial and temporal population movement and its impact on exposure assignment. Susan is interested in the social, economic and environmental determinants of childhood type 1 diabetes, and measuring the associations between measures of green space and birth outcomes.


Dr Daniela Fecht (Research Fellow - GIS in Environment and Health)

Daniela’s main research areas are environmental justice, urban environments and small scale exposure assessment. Her research examines the effects of social and physical environments on population health and how these vary across different subpopulations. Her particular interest lies in the built environment as a determinant of social and environmental health and how urban design and patterns of green space can benefit human health and wellbeing.  Daniela works also on the development and application of geographical approaches and methods for exposure assessment and environmental health analysis.



Adi McCrea (Research Assistant in GIS and Exposure Science)

Completing her undergraduate degree in Physical Geography, Adi taught high school Geography before completing a GIS Masters degree.  Adi has research interests in the interactions between the environment, behaviour and wellbeing, and how GIS methodologies can be applied to historic records to investigate the relationships between population and health.  Adi provides support on exposure assessment for the EXPOsOMICS and XENAIR projects, along with providing GIS support within SAHSU.


Annalisa Sheehan (Research Assistant in Environmental Epidemiology)

Annalisa completed her master’s degree in applied GIS and Remote Sensing, with her dissertation focusing on satellite-derived particulate matter pollution measurements and their relationship with hospital admissions in the Wessex region. Currently, Annalisa is working alongside Dr Susan Hodgson on Childhood Type 1 diabetes, investigating the environmental and pre/perinatal risk factors across England.




Affiliated members:


Dr Philippa Douglas

Philippa (Pippa) is an early career MRC-PHE Centre for Environment and Health Research Fellow based at the National Heart and Lung Institute in the Department of population health and occupational disease at Imperial College London. Pippa is investigating associations of respiratory disease with biological air pollution (bioaerosol) exposure in studies of people living near anthropogenic sources of bioaerosols. She started her fellowship in October 2017; prior to her fellowship Pippa worked in SAHSU from 2014-2017.


Samuel Cai

Samuel has a background in epidemiology and medicine. He has a broad research interest in environmental epidemiology and respiratory epidemiology, in particular, the health effects of air pollution and noise, interplays of multiple environmental stressors and their modifiers on health, environmental lung diseases and exposure assessment approaches. His current fellowship, based at King’s College London, extends his air pollution research to China, where he is researching how personal exposure to air pollution impacts patients with chronic lung diseases in two Chinese megacities. He is also actively involved in the MRC-PHE Centre's AIRLESS project, led by Professor Frank Kelly at King’s.