EDF Health

Better data is critical to address health disparities in air pollution’s impacts

This post originally appeared on the EDF Global Clean Air Blog.

Ananya Roy, Senior Health Scientist, and Maria Harris, Environmental Epidemiologist 

The last several months have seen a wave of momentum in policies seeking toward advance environmental justice and equity through better data collection and mapping. In his first week in office, President Biden signed an executive order to initiate the development of a screening and mapping tool to identify disadvantaged communities with the goal of informing equitable decision making. And legislation introduced in the House of Representatives and Senate would launch a similar effort. This focus on data and mapping is critical.  

At EDF, we’ve worked with community and research partners to map air pollution at the block-by-block level, and found that hyperlocal data can reveal pollution hotspots and variability within cities and neighborhoods that would otherwise be missed. Building on this research, our latest work shows how the health impacts from air pollution can vary at a hyperlocal level and how using local level data can greatly improve our ability to identify health disparities and target action. Our findings illustrate why it is important to incorporate health information into such decision-making, as both pollution exposure and health vulnerability influence the health impacts of air pollution.

These insights have relevance not only for actions at the federal level, but also for cities and states across the country that are seeking to reduce air pollution and address health inequities.

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Amid COVID-19, the Trump administration sets dangerous air pollution standards. What is at stake for Houstonians?

Ananya Roy, Senior Health Scientist; Rachel Fullmer, Senior Attorney; Jeremy Proville, Director; Grace Tee Lewis, Health Scientist

The Trump administration’s disregard for science has been clear in the response to the COVID-19 pandemic, but it’s not the only health threat they’re making worse by ignoring overwhelming scientific evidence. For three years the administration has systematically sought to weaken clean air safeguards, endangering all Americans.

We know air pollution causes heart disease, diabetes and lung disease—and that the people suffering from these conditions are at greater risk of severe illness from COVID-19. Independent of the ongoing pandemic, air pollution is responsible for tens of thousands of deaths across America year after year. This underscores the vital importance of pollution protections to protect human health both during and after the COVID-19 crisis.

Unfortunately, EPA Administrator Andrew Wheeler has proposed to retain an outdated and inadequate standard for fine particulate matter (PM2.5) pollution despite strong scientific evidence that it must be strengthened to adequately protect human health.

To understand what having this pollution standard means for families living in the Greater Houston area, Harvard University and EDF scientists undertook an analysis of the impacts of PM2.5 exposure across the city. We found that:

  • Exposure to fine particle air pollution in 2015 was responsible for 5,213 premature deaths and over $49 billion in associated economic damages.
  • More than 75% of the health burden was borne by communities exposed to PM2.5 levels below the current standard.
  • Meeting the current standard alone would have prevented 91 deaths of the more than 5,000 premature deaths due to fine particle pollution.

By ignoring the scientific evidence and retaining the current standard, Administrator Wheeler is ignoring the very real health impacts felt by Houstonians and communities across the country from exposure to fine particle pollution.

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Traffic pollution causes 1 in 5 new cases of kids’ asthma in major cities: How data can help

Dr. Ananya Roy is a Senior Health Scientist

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City leadership can ill afford to ignore this issue and must strive for opportunities to prevent new cases of asthma.

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landmark new study shines a light on the massive impact of vehicular air pollution on the health of our children. The study estimates that nitrogen dioxide (NO2) – a key traffic air pollutant – leads to approximately 4 million new asthma cases in children across the globe, or 1 in 10 new cases.

To address this pervasive threat, leaders need local data to create targeted approaches and policies. That’s why Environmental Defense Fund (EDF) is leveraging sensor technology to develop novel methods to measure and map air pollution – including NO2 concentrations – block by block in cities across the world, from Oakland to Houston to London.

Cities bear the worst burden

The study, released this month in The Lancet Planetary Health, finds that children living in cities are most at risk of asthma due to NO2 pollution. A staggering 90% of all new cases due to traffic were in urban and adjoining suburban areas.

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