US Air Quality Index: Lahore is world’s most polluted metropolis

Lahore, the cultural capital Pakistan, has been ranked because the world’s most polluted metropolis, based on air air pollution knowledge launched by the US Air Quality Index (AQI). Lahore reported a particulate matter (PM) ranking of 423. New Delhi stood second with a PM of 229, whereas Nepal’s capital Kathmandu ranked the third with a PM of 178.

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About AQI:

  • The Air Quality Index (AQI) is launched by the US Environmental Protection Agency (EPA) to present folks an thought of whether or not it’s secure to breathe the air.
  • AQI relies on the degrees of 5 main pollution regulated by the EPA: ground-level ozone, particulate matter (PM2.5), carbon monoxide, sulfur dioxide, and nitrogen dioxide.
  • AQI measures air high quality by putting it on a scale of 0-500, the place air high quality is thought to be passable if the AQI is beneath 50.

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