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Stop Bad Data Centers

Exposing AI Data Center Threats and Harms

Air Quality Degradation & Pollution

Last Edited:

April 9, 2026

Impact Type:

Overview:

AI data centers are major contributors to air pollution and public health harm. These facilities emit hazardous pollutants like PM2.5 and nitrogen oxides, strain power grids, and exacerbate climate change.

The communities living near them face disproportionate health risks, including asthma, heart disease, and premature death.

This document highlights the potential scale and severity of these impacts.

Data centers increase air pollution because the processes use some level of fossil fuel generation, which leads to greenhouse gas emissions in the air (NAACP).

Key Facts

  • AI data centers release particulate matter (PM2.5) and nitrogen oxides (NOx), which are linked to asthma, lung cancer, heart attacks, and premature deaths (Lincoln Institute of Land Policy; Harvard Business Review).
  • Some communities have seen a 48% increase in greenhouse gas emissions since 2023 due to data center operations (NAACP).
  • Backup generators in Northern Virginia can operate up to 50 hours at a time, contributing $200–$300 million annually in public health costs and affecting counties as far as Florida (Harvard Business Review).
  • Air pollution from these centers could result in $20 billion per year in respiratory-related health costs in the U.S. by 2028 (Harvard Business Review).
  • Pollutants travel hundreds of miles, impacting areas far from the data center itself (Harvard Business Review)
  • Data centers rely on electricity from coal and other fossil fuels, which remain a significant portion of the U.S. energy mix (Harvard Business Review).

Frequently Asked Questions (FAQs)

  • Q: Why are AI data centers considered a public health threat?

    A: They release “digital smog” — harmful air pollutants that penetrate deep into the lungs, trigger breathing problems, and exacerbate noncommunicable diseases. Vulnerable populations, including children, the elderly, and those with lung conditions, are most at risk (Harvard Business Review).

  • Q: How do backup generators worsen pollution?

    A: On-site generators emit PM2.5 and NOx directly, while reliance on polluting electricity sources adds indirect risks. Communities near data centers already struggling with poor air quality face increased emergency department visits and other serious health outcomes (Harvard Business Review).

  • Q: Are the effects immediate or long-term?

    A: Both. PM2.5 exposure can trigger breathing problems within 30 minutes to 24 hours, while carbon emissions contribute to long-term climate effects. Densely populated areas face the most severe immediate health consequences (Harvard Business Review).

  • Q: How significant is the health and economic impact?

    A: Northern Virginia alone faces $200–$300 million in annual public health costs, and nationwide respiratory-related costs from data center emissions could reach $20 billion by 2028. PM2.5 emissions from U.S. coal plants previously caused ~460,000 excess deaths between 1999 and 2020 (Harvard Business Review).

  • Q: Who is most affected?

    A: Economically disadvantaged communities near data centers experience the highest risk, with poorer air quality and limited resources to mitigate exposure (Harvard Business Review).

  • Q: What tools exist to monitor and address these impacts?

    A: Scientific models, EPA tools, and air pollution visualizations can trace pollutants, quantify health impacts, and guide energy and siting decisions. These tools can help inform more health-conscious corporate and policy actions (Harvard Business Review).

Resources/ Sources

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