environmental hazards

  • Delhi

    Delhi's Winter Crisis: Understanding the Temperature-Pollution Relationship in November-December

    Dec 05, 2025 10:44 pm CST

    Delhi faces its annual winter pollution crisis as temperatures plummet to 5°C, trapping pollutants and pushing AQI readings above 300. Data analysis reveals a clear inverse relationship between falling temperatures and worsening air quality, with pollution levels peaking when temperatures drop below 20°C. As December progresses, the cold, stagnant air continues to lock pollutants in place, creating hazardous conditions that have sparked protests across the capital.

  • Delhi AQI Reaches Severe Level of 428: First Critical Air Pollution Day of 2025

    Delhi AQI Reaches Severe Level of 428: First Critical Air Pollution Day of 2025

    Nov 11, 2025 10:03 pm CST

    Delhi has recorded its first severe air pollution day of 2025, with AQI levels spiking to 428. This dangerous deterioration from the previous "very poor" air quality is attributed to stagnant weather conditions and local emissions, creating health risks for all residents, especially those with pre-existing respiratory conditions. The last comparable air quality crisis occurred in December 2024.