Income alone does not explain racial disparities
Black and other racially minoritised people in the UK are more likely to experience poverty. However, research indicates that even at similar income levels, racial disparities in exposure (England) and health effects of air pollution (UK) remain, suggesting that race and income reveal different aspects of how unequal conditions are produced.
Why the triple burden matters for action
The triple burden framework gives us a way to describe why groups affected by racism or other systemic marginalisation experience disproportionate health effects of air pollution through three pathways: living in polluted areas or in homes affected by mould and damp combined with limited housing choices (personal exposure), barriers to healthcare and poorer underlying health (risk of harm), and less representation in public decision-making (as a proxy for power to advocate for clean air).
It also gives us a framework for designing a programme of equitable clean air interventions: targeting areas with highest exposure and greatest risk of harm and building community power to influence decision-making.
Why we need an equity lens on universal clean air policy
Broad, universal air quality policies, such as national and sectoral air quality standards, are key to the policy framework for cleaning the air, but they don’t automatically reduce inequalities, and sometimes they can even increase them. For example, in England, average PM2.5 exposure fell by 54% between 2003 and 2023, but lower-income areas still had persistently higher PM2.5 levels than richer areas.
Researchers and policymakers have speculated that an equity lens could make clean air policy more effective by identifying where and why different actions are needed, ensuring no one is left behind, and building public buy-in and community power over time.
A US study modelled three national strategies to reduce air pollution and found that targeting the most overburdened neighbourhoods was more effective at eliminating disparities and equally effective at reducing overall pollution, compared to traditional regional or sector-wide approaches.
Defra has noted that air pollution regulations can underperform (Air pollution horizon-scanning, PDF) when they don’t account for proximity to affected communities, and that lower-income households may retain polluting systems longer during the transition to net zero. Perceived failures in public health improvements could weaken public support for climate action.
This is the first of two articles we’ll be publishing about race equity and air pollution. In the next article, we’ll explain what we can learn from projects around the world about how to equitably improve air quality.