🇮🇳 Air Quality in New Delhi (Capital of India)

Yesterday AQI: Fair 🙂 (2 of 5)

Tomorrow AQI: Moderate 😐 (3 of 5)

UV Index: Not available

Pollutant Levels in New Delhi (μg/m³)

• CO: 243.44 (0–12400 µg/m³) – Carbon Monoxide – a colorless gas that limits oxygen delivery in the body. – Produced by incomplete combustion from vehicles, stoves and wildfires. High exposure reduces oxygen transport and can be life-threatening. (Low)
• NO: 0 (0–200 µg/m³) – Nitric Oxide – reactive gas that contributes to ozone and smog formation. – Short-lived gas from fuel burning. Although unstable, it contributes to ground-level ozone and secondary pollutants. (Low)
• NO2: 7.76 (0–200 µg/m³) – Nitrogen Dioxide – toxic reddish gas, linked to asthma and lung irritation. – Strongly traffic-related pollutant. Long-term exposure is associated with asthma, reduced lung function, and cardiovascular risk. (Low)
• O3: 50.61 (0–180 µg/m³) – Ozone – harmful near the ground, formed when sunlight reacts with traffic and industrial emissions. – Unlike protective ozone in the upper atmosphere, ground-level ozone is harmful. It causes chest pain, coughing and worsens bronchitis. (Low)
• SO2: 1.32 (0–250 µg/m³) – Sulfur Dioxide – pungent gas from coal and oil combustion, triggers respiratory issues. – Major contributor to acid rain. Short-term exposure irritates eyes, nose, throat and can trigger asthma attacks. (Low)
• PM2_5: 18.72 (0–55 µg/m³) – Fine Particles (PM2.5) – microscopic dust and smoke that enter deep into the lungs. – Particles smaller than 2.5µm – from smoke, coal burning and vehicle exhaust. They bypass body filters and reach the bloodstream. (Moderate)
• PM10: 40.7 (0–250 µg/m³) – Coarse Particles (PM10) – larger dust, pollen and ash particles affecting breathing. – Particles up to 10µm – from construction dust, pollen and ash. Aggravates respiratory conditions like COPD and asthma. (Low)
• NH3: 4.58 (0–1000 µg/m³) – Ammonia – gas mainly from agriculture and fertilizer use. – Emitted by livestock farming, fertilizers and some industry. Can form fine secondary particles when combined with NOx and SO2. (Low)

Explore More Indian Cities

• Air Quality in Mumbai
• Air Quality in Bangalore
• Air Quality in Kolkata

About Air Quality in India

India faces some of the highest AQI levels in the world, especially in northern cities like Delhi and Lucknow during winter. Key sources of pollution include vehicle emissions, industry, crop burning, and coal power plants. PM2.5 and PM10 are the most critical pollutants affecting health, often pushing air quality into the Poor or Very Poor categories.

Monitoring AQI in India is vital for planning outdoor activities and protecting vulnerable groups such as children, the elderly, and those with asthma or heart disease.