Summary
This 2024 epidemiological modelling study examined the compound health effects of concurrent extreme heat and ground-level ozone pollution across 731 urban centres in China, explicitly accounting for interactive rather than additive health impacts. The analysis incorporated climate change projections to estimate future exposure and risk scenarios, addressing an evidence gap in understanding how multiple environmental stressors interact in rapidly urbanising regions experiencing increasing co-exposures.
Regional applicability
This study is China-specific and reflects Chinese urban geography and climate patterns. However, the methodological approach to quantifying compound environmental health risks under climate change may be transferable to United Kingdom urban centres, particularly as the UK faces intensifying summer heat and ground-level ozone pollution; the focus on interactive rather than additive effects is relevant to UK air quality and heat resilience policy.
Key measures
Health risk estimates from compound heat and ozone exposure; interactive health effects under current and projected climate scenarios across 731 urban areas
Outcomes reported
The study modelled compound health effects of concurrent extreme heat and ground-level ozone pollution across 731 urban centres in China, accounting for interactive rather than additive health impacts. Climate change projections were incorporated to estimate future exposure and risk scenarios.
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