# AQI crosses 400, doctor advises against outdoor walks in Delhi-NCR 2026-11-03T13:42:12+00:00 | Health & Science | Indian Opinion Desk Corroboration: 1 independent outlet Delhi-NCR’s air quality index (AQI) has crossed 400 in several areas, prompting a doctor to advise against outdoor walks and exercise. Dr. Ankit Bhatia of the Respiratory Medicine Department at Yashoda Medicity said people should not go for long walks outside when the AQI is above 400. He warned that prolonged exposure in such pollution levels can affect the lungs. Dr. Bhatia recommended exercising indoors instead. For essential outdoor trips, he said a well-fitted N95 respirator mask is effective against PM2.5 particles, but cloth masks and loose surgical masks should be avoided. He said children, the elderly, and those with asthma, COPD or heart conditions are especially vulnerable and should stay indoors. ## Indian Opinion Analysis Dr. Bhatia’s advice, issued when the AQI has crossed 400, gives residents a clear rule: postpone outdoor walks and exercise until air quality improves. The guidance specifically names children, the elderly, and those with asthma, COPD or heart conditions as most vulnerable. The doctor warns that both morning and evening exposure carry risk, and that cloth or loose surgical masks offer little protection. The advice leaves one open question, how long this spell of severe pollution will last. Delhi-NCR’s residents now wait for a sustained change in weather or a government intervention that the source does not name. ## Coverage - aajtak.in Neutral health advisory from a doctor, no government alignment This brief was synthesised by AI from the source linked above. Tags: AQI, Delhi NCR, Dr. Ankit Bhatia, Yashoda Medicity Canonical: https://indianopinion.org/aqi-crosses-400-doctor-advises-against-outdoor-walks-in-delhi-ncr/ License: Summary and commentary (c) Indian Opinion, reusable with attribution. Facts belong to the linked sources. Cite: https://indianopinion.org/aqi-crosses-400-doctor-advises-against-outdoor-walks-in-delhi-ncr/#story-in-brief How this brief was made: an AI model read the report linked above and wrote this summary and analysis, which were published automatically. Published briefs are sampled every hour by an automated quality check; the editor verifies its findings and approves corrections, and corrected briefs carry a dated correction line. We do no original reporting. Methodology: https://indianopinion.org/ai-use-policy/