Explore AQI Across Lahore

Pakistan is the 2nd most polluted country on earth, and Lahore the 2nd most polluted city, with PM2.5 levels 14 times above WHO guidelines.

The U.S. Air Quality Index (AQI) is used to measure air quality and uses six color-coded categories to show how harmful the air may be to health. It is calculated from levels of: PM2.5, PM10, ozone (O3), nitrogen dioxide (NO2), sulfur dioxide (SO2), and carbon monoxide (CO).

Pick a year from the dropdown, then drag the slider to watch Lahore’s AQI shift through the seasons. Each circle is an air-quality monitor—hover to see its monthly average AQI.

AQI Categories and Ranges

Good Moderate Unhealthy for Sensitive Unhealthy Very Unhealthy Hazardous
  • Good (0–50)
  • Moderate (51–100)
  • Unhealthy for Sensitive Groups (101–150)
  • Unhealthy (151–200)
  • Very Unhealthy (201–300)
  • Hazardous (301+)

Where do most emissions come from?

This diagram shows how emissions in each sector (left) can be allocated to specific uses (middle) and pollutants (right). This kind of analysis can help policy-makers see how emissions move through the economy and identify where to act to combat them.

In this graph, emissions are estimated using a simple formula: Emissions = Emission Factor (EF) × Activity Data (AD), where EF comes from published sources such as the IPCC, and AD is the total activity level of each sector.

Hover over any link to see the emissions value (in kilotonnes) represented by that connection, including flows from sector nodes to source nodes and from source nodes to pollutant nodes.

Data Source

Omar, A., & Pakistan Air Quality Initiative (Pakistan). (2025). Unveiling Pakistan's Air Pollution: A National Landscape Report on Health Risks, Sources and Solutions. Pakistan Air Quality Initiative. https://doi.org/10.5281/zenodo.17629179

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