Story perspectives

Istanbul and Delhi Face Severe Air Quality Crisis

11/5/2025

42 6

Summary

Story summary

Istanbul, Turkey, on November 4, 2025, recorded an AQI of 153 ('Unhealthy') and ranked 5th, prompting residents to limit outdoor activities and use air purifiers.
Pollution in Istanbul stems from traffic emissions, industrial runoff, and residential heating.
Delhi, India, has AQI levels above 400 in some areas, with low wind speeds, vehicular emissions, and post-Diwali firecracker pollution.
The government has activated the Graded Response Action Plan (GRAP) and urged precautions.

1 of 1

Story summary

Istanbul, Turkey, on November 4, 2025, recorded an AQI of 153 ('Unhealthy') and ranked 5th, prompting residents to limit outdoor activities and use air purifiers.
Pollution in Istanbul stems from traffic emissions, industrial runoff, and residential heating.
Delhi, India, has AQI levels above 400 in some areas, with low wind speeds, vehicular emissions, and post-Diwali firecracker pollution.
The government has activated the Graded Response Action Plan (GRAP) and urged precautions.