Delhi’s AQI Decoded: What the Numbers Mean for Your Lungs
Delhi’s air pollution has become a year-round concern, especially during winter when smog and toxic particles increase dramatically. The Air Quality Index (AQI) is designed to help people understand how harmful the air is on any given day. But beyond the numbers, what does this pollution really mean for your lungs?
According to Dr. Rajesh Kumar Mishra (Dada Dev Sewa Sadan Hospital), the biggest threat in Delhi’s air comes from PM2.5 and PM10 particles — tiny pollutants that enter deep into the lungs. These particles can irritate airways, reduce oxygen flow, trigger asthma, worsen chronic cough, and over time, increase the risk of long-term respiratory diseases.
Dr. Mishra explains that when the AQI rises, “your lungs work harder, inflammation increases, and even healthy individuals may experience breathlessness or fatigue.” Children, the elderly, and people with asthma are especially vulnerable because their lungs are more sensitive to pollutant exposure.
How to Protect Yourself on High-AQI Days
To safeguard your health, Dr. Mishra recommends the following measures:
Wear an N95 or KN95 mask whenever you step outdoors.
Use HEPA-grade air purifiers at home and in offices to reduce indoor pollution.
Avoid early-morning and late-evening outdoor activities, when pollution peaks.
Keep windows closed during high pollution hours to prevent outdoor air from entering.
Stay hydrated — drinking enough water helps your body flush out toxins.
Practice steam inhalation once a day to soothe irritated airways.
Add anti-inflammatory foods like tulsi, ginger, turmeric, garlic, and citrus fruits to support lung function.
Create a “clean room” in your home with plants like snake plant and peace lily.
Monitor AQI apps daily before planning outdoor travel or workouts.