Delhi AQI Live: Real-Time Air Quality Monitoring and Alerts

Delhi’s air quality changes rapidly throughout the day, making real-time monitoring essential for health protection. The current AQI in Delhi stands at 175, placing it in the “Moderate” category according to CPCB data. This guide provides comprehensive neighborhood-by-neighborhood air quality information, protection strategies for every AQI level, and step-by-step instructions for setting up alerts. You’ll learn exactly what actions to take based on current pollution levels to protect yourself and your family.

Current Delhi Air Quality Map: Neighborhood-by-Neighborhood AQI Readings

Delhi’s air quality varies significantly across neighborhoods. This real-time map shows current AQI readings from multiple monitoring stations across the NCR region, updated every hour.

The most polluted areas currently include Anand Vihar (AQI 235), Mundka (AQI 212), and Bawana (AQI 198), all falling in the “Poor” category. In contrast, areas with relatively better air quality include Lodhi Road (AQI 132), Pusa (AQI 145), and Mandir Marg (AQI 156), classified as “Moderate.” These variations occur due to local emissions, traffic density, industrial activity, and geographical factors that trap or disperse pollutants.

To find your specific neighborhood, check the nearest monitoring station on the color-coded map. Green and yellow zones indicate acceptable air quality, while orange, red, and purple zones require increasing levels of precaution. Data is sourced from CPCB, DPCC, SAFAR, and private monitoring networks, with readings updated hourly.

These geographical variations matter for daily travel and activity planning. When possible, consider spending time in areas with better Delhi air quality readings for outdoor activities, especially for vulnerable individuals. Morning walks or exercise are generally safer in green or yellow zones.

Understanding Today’s Air Quality: What Delhi’s Current AQI Means for You

Delhi’s current AQI of 175 falls into the “Moderate” category. This means air quality is acceptable for most people, but some pollutants may cause moderate health concerns for a small number of unusually sensitive individuals.

For the general population, today’s air quality allows most outdoor activities with minimal risk. However, unusually sensitive people should consider limiting prolonged or heavy exertion, especially near busy roads or industrial areas.

Different groups should take specific precautions based on today’s readings:

• Children and elderly: Can engage in outdoor activities but should monitor for respiratory discomfort
• People with asthma or respiratory conditions: Keep rescue medication handy and limit activity near pollution sources
• Pregnant women: Can maintain normal outdoor activities with standard precautions
• Healthy adults: No restrictions needed for normal activities

At current levels, most protection measures remain optional. Basic masks (N95/N99) provide adequate protection for sensitive individuals when near traffic or during longer outdoor exposure. Window ventilation remains safe during daytime hours. Delhi pollution today is moderate, but can change quickly based on weather conditions and emissions.

While today’s readings don’t warrant emergency measures, being prepared for changes is important. Air quality can deteriorate rapidly, especially in evenings or with changing weather conditions.

Setting Up Delhi Air Quality Alerts: Step-by-Step Configuration Guide

Stay informed about Delhi’s changing air quality with automated alerts. Follow these simple steps to set up notifications on different devices and platforms.

The most reliable air quality alert services for Delhi include:

AQI.in App Setup

1. Download the AQI.in app from Google Play or App Store
2. Allow location access or manually select Delhi
3. Tap the bell icon in the top right corner
4. Select “Configure Alerts” and choose your neighborhood
5. Set threshold values (recommended: 150 for initial alerts)
6. Toggle notifications to “On” and save settings

SAFAR-India App Setup

1. Install SAFAR-India from your app store
2. Navigate to “Delhi” in the location menu
3. Select “Alert Settings” from the main menu
4. Choose your specific Delhi neighborhood
5. Set threshold values for different pollutants (PM2.5, PM10)
6. Enable push notifications

IQAir AirVisual App

1. Download IQAir AirVisual
2. Create a free account (optional but recommended)
3. Add Delhi and your specific neighborhood to favorites
4. Go to Settings > Notifications
5. Configure alert thresholds for each AQI category
6. Enable background app refresh for timely alerts

For optimal protection, set different thresholds based on your sensitivity. Generally, 100+ (Moderate) is appropriate for sensitive groups, while 150+ (Poor) works for most healthy adults. Consider setting up alerts on multiple platforms for redundancy, as transmission speeds and accuracy can vary.

Test your setup by temporarily lowering thresholds below current readings to ensure notifications work properly. Once verified, adjust back to appropriate levels.

Delhi Air Quality Action Plan: What to Do at Every AQI Level

Different air quality levels require different responses. This comprehensive action plan provides specific guidance for what to do as Delhi’s AQI moves through various thresholds.

Good (0-50) and Satisfactory (51-100)

• General Population: Enjoy outdoor activities without restrictions
• Sensitive Groups: Ideal conditions for outdoor activities
• Recommended Actions: None required; excellent opportunity for outdoor exercise

Moderate (101-200)

• General Population: Most outdoor activities remain safe
• Children and Schools: Regular outdoor activities permitted; monitor sensitive children
• Elderly/Respiratory Conditions: Consider limiting prolonged exertion
• Recommended Actions: Optional N95 masks during heavy traffic exposure; normal ventilation acceptable

Poor (201-300)

• General Population: Reduce prolonged outdoor exertion
• Children and Schools: Limit outdoor playtime; no vigorous outdoor activities
• Elderly/Respiratory Conditions: Keep outdoor activities brief; carry medication
• Recommended Actions: N95/N99 masks recommended outdoors; limit window ventilation during peak hours; run air purifiers if available

Very Poor (301-400)

• General Population: Avoid prolonged outdoor activities
• Children and Schools: Keep children indoors; PE classes inside only
• Elderly/Respiratory Conditions: Stay indoors as much as possible
• Outdoor Workers: Use N99 masks; take frequent indoor breaks
• Recommended Actions: N99 masks essential outdoors; seal windows; run air purifiers continuously; create one “clean room” in home

Critical Protection Thresholds: When to Take Immediate Action

Certain AQI thresholds require immediate protective actions. Learn the critical levels where health risks significantly increase and immediate measures become necessary.

AQI above 400 (Severe): At this threshold, air pollution becomes a health emergency for everyone. Short-term exposure can trigger respiratory distress even in healthy individuals. PM2.5 levels exceed 250 µg/m³ at this stage, which is 25 times the WHO recommended limit.

“When AQI crosses 400, even brief exposure can cause inflammatory responses in the lungs,” explains Dr. Arvind Kumar, Chairman of the Institute of Chest Surgery at Medanta. “Everyone, regardless of health status, should minimize outdoor exposure.”

Take these emergency measures immediately:

• Remain indoors with windows and doors sealed
• Use N99 masks if outdoor movement is absolutely necessary
• Create at least one “clean air room” using air purifiers or DIY filters
• Run air purifiers continuously at maximum settings
• Avoid all physical exertion, even indoors
• Monitor for symptoms including unusual coughing, wheezing, or shortness of breath

Special Guidance for Schools and Children

Children are especially vulnerable to air pollution. Here’s specific guidance for parents and schools on protecting children at different AQI levels.

The National Commission for Protection of Child Rights (NCPCR) and Central Pollution Control Board (CPCB) recommend schools implement these measures based on AQI:

For school administrators, consider establishing an “air quality shelter” in a sealed room with multiple air purifiers. This can serve as a safe space during pollution spikes or for children with respiratory conditions.

Parents should watch for these signs of pollution-related distress in children:

• Unusual coughing or wheezing
• Complaints of chest tightness
• Irritated eyes or throat
• Unusual fatigue or headaches
• Breathing that seems faster or harder than normal

Delhi Air Quality Patterns: Time of Day and Seasonal Trends

Delhi’s air quality follows predictable patterns throughout the day and across seasons. Understanding these patterns helps you plan activities when pollution levels are likely to be lowest.

Daily patterns show distinct fluctuations in AQI, with two typical peaks:

• Morning Peak (7-9 AM): Traffic emissions combine with overnight temperature inversion
• Evening Peak (6-9 PM): Rush hour traffic, cooking emissions, and falling temperatures trap pollutants

The best time for outdoor activities is typically between 1-4 PM, when sunlight, higher temperatures, and greater atmospheric mixing help disperse pollutants. Early mornings, despite feeling fresher, often have trapped pollution from overnight.

Seasonally, Delhi’s air quality varies dramatically:

• Winter (November-February): Worst air quality with frequent “Very Poor” to “Severe” readings. Temperature inversions trap pollutants, and crop burning in neighboring states contributes significantly.
• Summer (April-June): Improved conditions with primarily “Moderate” to “Satisfactory” readings, though dust storms can cause temporary spikes.
• Monsoon (July-September): Best air quality with frequent “Good” to “Satisfactory” readings as rain washes out pollutants.
• Post-Monsoon (October-November): Rapid deterioration as crop burning coincides with festival season and changing weather patterns.

Weather conditions significantly impact pollution levels. Wind speeds below 5 km/h allow pollutants to accumulate, while speeds above 10 km/h help dispersion. Similarly, rain improves air quality, while fog and mist worsen conditions by trapping particles.

Five-year trends show marginal improvements in summer and monsoon seasons but persistent severe episodes during winter, highlighting the need for understanding why Delhi’s air quality is persistently bad despite interventions.

Delhi AQI Forecast: Predicted Air Quality for the Next 7 Days

Plan your week with this detailed Delhi air quality forecast. Based on meteorological data and pollution patterns, here’s what to expect for the next seven days.

This forecast suggests a slight deterioration over the next few days followed by moderate improvement toward the end of the week. Confidence levels decrease for predictions beyond 3-4 days, as meteorological variables become less certain.

Key weather factors influencing this forecast include:

• Wind direction shifting from easterly to northwesterly (typically bringing cleaner air)
• Dropping nighttime temperatures increasing morning inversions
• Possibility of light rain toward the end of the week

Recommended adjustments based on this forecast:

• Plan significant outdoor activities for today or later in the week
• Prepare masks and air purifiers for increased use on days 3-4
• Consider indoor alternatives for any sensitive individuals on days with “Poor” forecasts

This forecast combines data from SAFAR-India, IMD meteorological predictions, and historical pattern analysis. Accuracy is highest for the next 48 hours and decreases for longer-range predictions.

Understanding Air Quality Measurements: What Delhi’s Pollution Data Really Means

Air quality data can be confusing. This section explains exactly what’s being measured in Delhi’s air, how AQI is calculated, and what the different pollutants mean for your health.

Delhi’s air quality monitoring primarily tracks six pollutants, each with different health implications:

Major Pollutants in Delhi’s Air

• PM2.5 (Particulate Matter ≤ 2.5 micrometers): The most dangerous pollutant in Delhi, these microscopic particles can penetrate deep into lungs and enter the bloodstream. Primary sources include vehicle emissions, construction dust, and crop burning. Health impact: Respiratory inflammation, cardiovascular problems, reduced lung function.
• PM10 (Particulate Matter ≤ 10 micrometers): Larger dust particles that primarily affect the upper respiratory tract. Sources include road dust, construction, and industrial emissions. Health impact: Irritation of eyes, nose, and throat; worsening of asthma symptoms.
• NO2 (Nitrogen Dioxide): A gaseous pollutant primarily from vehicle emissions and power plants. Health impact: Respiratory irritation, bronchitis, reduced lung function with long-term exposure.
• SO2 (Sulfur Dioxide): Emitted from industrial processes and diesel vehicles. Health impact: Respiratory irritation, bronchial constriction.
• CO (Carbon Monoxide): Produced by incomplete combustion in vehicles and cooking. Health impact: Reduces oxygen delivery in the bloodstream, causing headaches, dizziness, and at high levels, cognitive impairment.
• O3 (Ozone): Ground-level ozone formed by reaction of pollutants with sunlight. Health impact: Lung irritation, reduced lung function, asthma exacerbation.

The Air Quality Index (AQI) consolidates these individual measurements into a single number using a complex calculation method. According to Dr. S.N. Tripathi, Professor at IIT Kanpur and member of the National Clean Air Programme, “AQI is calculated by first converting each pollutant concentration to a sub-index, then taking the maximum of these values.”

For Delhi, PM2.5 typically drives the overall AQI due to its consistently high levels relative to standards. The Indian AQI scale differs slightly from international standards:

Different monitoring stations may show varying readings due to:

• Hyperlocal pollution sources near specific monitors
• Variations in monitoring equipment calibration
• Different averaging periods (hourly vs. 24-hour averages)
• Data transmission and processing delays

For most Delhi residents, PM2.5 is the most important metric to track due to its prevalence and health risk. During winter, 24-hour average PM2.5 levels frequently exceed 150 μg/m³, 15 times the WHO recommended limit of 10 μg/m³.

Delhi Air Pollution Protection Guide: Masks, Purifiers, and Indoor Solutions

Protecting yourself from Delhi’s pollution requires effective tools and strategies. This evidence-based guide evaluates masks, air purifiers, and other solutions based on scientific research and real-world effectiveness.

Mask Selection and Usage Guide for Delhi Pollution

Not all masks protect equally against Delhi’s air pollution. This section evaluates different mask types and explains proper usage to maximize protection.

Research from the University of Edinburgh shows properly fitted N95 masks can reduce PM2.5 exposure by over 95%. However, fit is crucial. Common fitting mistakes include:

• Gaps around the nose bridge
• Loose side seals allowing air leakage
• Wearing the mask below the nose
• Incorrect strap positioning

For proper fitting, ensure the nose clip is shaped tightly around your nose, both straps are secured, and the mask creates a seal when you breathe in (the mask should pull slightly inward). Perform a “negative pressure check” by covering the mask with your hands and inhaling sharply; the mask should pull toward your face.

Replace N95 masks after about 8 hours of cumulative use or if they become visibly dirty or damaged. For children and people with beards, special sized masks and high-efficiency alternatives may be necessary.

Air Purifier Buying Guide for Delhi Homes

Selecting the right air purifier for Delhi’s specific pollution profile requires understanding key features and specifications. Use this guide to make an informed purchase decision.

The Clean Air Delivery Rate (CADR) is the most important specification. For Delhi homes, look for:

• Bedrooms (up to 150 sq ft): Minimum 200 m³/h CADR
• Living rooms (150-300 sq ft): Minimum 300-400 m³/h CADR
• Large spaces (300+ sq ft): 400+ m³/h CADR or multiple units

To calculate your needs, use this formula: Room area (sq ft) × ceiling height (ft) × 0.6 = Minimum CADR needed in m³/h.

Essential features for Delhi conditions include:

• True HEPA filtration: Captures 99.97% of particles down to 0.3 microns
• Activated carbon layer: Removes gases, odors, and VOCs
• Air quality sensor: Provides real-time feedback on pollution levels
• Auto mode: Adjusts fan speed based on detected pollution
• Filter replacement indicator: Notifies when filtration efficiency declines

Top-rated models for Delhi conditions include the Coway Airmega 300 S (check latest price), Blueair Blue Pure 211+ (check latest price), and Philips AC3059 (check latest price).

For optimal performance, place your purifier where you spend most time (bedroom during night, living areas during day). Keep doors and windows closed when running. In Delhi’s conditions, expect to replace filters every 3-6 months, more frequently during winter pollution season.

For budget options, consider DIY air purifiers using a HEPA filter attached to a box fan, which studies show can reduce particulate matter by 60-80% when properly constructed.

Creating a Clean Air Room During Severe Pollution

During pollution emergencies, designate at least one room in your home as a “clean air space.” Select a room with minimal external windows, seal any gaps with weather stripping or tape, and run air purifiers continuously. This approach can reduce indoor pollution by 90% even when outdoor levels are hazardous.

Additional protective measures include:

• Indoor plants that help filter air (snake plant, peace lily, areca palm)
• Regular wet cleaning to remove settled particles
• Air quality monitors to verify protection measures are working
• Maintaining good ventilation when outdoor air quality improves

Delhi’s Pollution Sources: Understanding What’s Causing Poor Air Quality

Delhi’s air pollution comes from multiple sources that vary by season. Understanding these sources helps contextualize air quality readings and predict future patterns.

According to recent source apportionment studies conducted by IIT Kanpur and The Energy and Resources Institute (TERI), the primary contributors to Delhi’s PM2.5 pollution include:

• Vehicle Emissions (20-35%): Exhaust from Delhi’s 13+ million vehicles, particularly diesel trucks and old vehicles
• Dust (15-25%): Road dust, construction activities, and natural dust storms
• Industrial Emissions (15-20%): Factories, power plants, and small industrial units
• Biomass Burning (10-30%): Crop residue burning in neighboring states (seasonal), plus wood and waste burning within Delhi
• Household Pollution (10-15%): Cooking fires, especially in informal settlements
• Power Plants (4-10%): Coal-fired electricity generation
• Others (5-10%): Diesel generators, waste burning, etc.

These contributions shift dramatically by season. During October-November, agricultural burning in Punjab and Haryana can contribute up to 40-45% of Delhi’s PM2.5, according to SAFAR data. This coincides with unfavorable meteorological conditions that trap pollutants.

“Delhi’s basin-like topography and meteorological conditions create a perfect storm for pollution accumulation,” explains Dr. Sarath Guttikunda, Founder of Urban Emissions (India). “Winter inversions trap pollutants close to the ground, while summer’s higher mixing heights allow greater dispersion.”

A common misconception is that a single source dominates Delhi’s pollution. Research shows the problem is multi-factorial, requiring varied interventions. Another myth is that Delhi air pollution causes are primarily local; in reality, regional contributions can be significant, especially during winter months.

Geographic factors including the Himalayan barrier to the north, which blocks air movement, and prevailing wind directions significantly affect pollution transport and accumulation. This regional airshed requires coordinated action across northern India, not just within Delhi’s boundaries.

Community Air Quality Initiatives: Citizen Monitoring and Advocacy in Delhi

Across Delhi, communities are taking air quality monitoring and improvement into their own hands. Discover citizen science initiatives, community advocacy, and how you can get involved.

Several successful community initiatives have emerged in response to Delhi’s air quality crisis:

• Care for Air: A volunteer organization raising awareness about air pollution, particularly focusing on school environments and children’s health
• Delhi Tree SOS: A citizen movement protecting urban forests that help filter pollution
• My Right to Breathe: A citizen collective advocating for policy changes and public awareness
• Lung Care Foundation: Combines medical expertise with community outreach for respiratory health
• Help Delhi Breathe: Focuses on community-based solutions and policy advocacy

These grassroots efforts have achieved significant results. The Vasant Vihar Residents Welfare Association successfully implemented a hyperlocal monitoring network that identified specific pollution hotspots, leading to targeted interventions that reduced local PM2.5 levels by 18% over six months.

To start monitoring in your community:

1. Connect with existing community groups in your neighborhood
2. Consider affordable monitors like Atmos (check price) for initial data gathering
3. Create a neighborhood monitoring map with regular readings
4. Share data through platforms like OpenAQ or AirCasting
5. Use findings to approach local authorities with specific requests

Schools have been particularly effective centers for change. The Shri Ram School’s “Hawa Badlo” initiative engaged students in monitoring air quality around their campus, leading to improved transportation policies and reduced idling near school zones.

Anumita Roychowdhury, Executive Director at the Centre for Science and Environment, notes, “Community monitoring creates accountability and ownership that government programs alone cannot achieve. The data may not be reference-grade, but the trends and patterns citizens identify are invaluable for targeted action.”

To get involved, contact existing networks through social media or attend community meetings. Many organizations offer training in basic monitoring techniques and data interpretation.

Future of Delhi Air Quality Monitoring: Emerging Technologies and Trends

Air quality monitoring in Delhi is evolving rapidly. Learn about emerging technologies, data integration efforts, and how future monitoring will provide more accurate, accessible information.

Several technological innovations are transforming how Delhi’s air is monitored:

• Low-cost sensor networks: Dense networks of affordable sensors are filling gaps between reference stations. The Indian Institute of Tropical Meteorology is deploying over 1,000 sensors across Delhi NCR, increasing spatial resolution dramatically.
• Satellite integration: Data from satellites like NASA’s MODIS and ESA’s Sentinel-5P are being integrated with ground measurements, offering wider coverage and better prediction models.
• Mobile monitoring: Sensors mounted on public transportation vehicles are creating dynamic pollution maps as they travel through the city.
• Wearable technology: Personal monitors like Flow by Plume Labs allow individuals to track their own exposure throughout the day.
• AI-powered forecasting: Machine learning algorithms combining meteorological data, emission inventories, and real-time measurements are improving forecast accuracy from 70% to over 90% for 72-hour predictions.

These advances are enabling hyperlocal monitoring down to street level. “We’re moving from a system of a few dozen reference monitors to a hybrid network with thousands of data points,” explains Dr. Sagnik Dey, Associate Professor at the Centre for Atmospheric Sciences, IIT Delhi.

Data democratization is another major trend. Open APIs and standardized data formats are making air quality information more accessible to developers, researchers, and citizens. This transparency is driving better policy decisions and enabling innovative applications.

Health impact assessment is becoming more integrated with monitoring. New systems correlate hospital admissions and health complaints with hyperlocal pollution data, creating more actionable insights for public health responses.

For Delhi residents, these advances will soon enable highly personalized pollution alerts and routing suggestions that consider both real-time measurements and predictive models to recommend the cleanest routes and times for outdoor activities in their specific neighborhood.

Additional Resources: Delhi Air Quality Tools and Information

Beyond this guide, numerous resources are available for monitoring and understanding Delhi’s air quality. This curated list provides the most reliable tools, apps, and information sources.

Top Mobile Apps

• SAMEER: Official CPCB app with data from all government monitoring stations
• AirVisual: Comprehensive global monitoring with excellent forecasts
• AQI India: Focuses specifically on Indian cities with good local coverage
• Breathe Delhi: Hyperlocal focus with neighborhood-level readings
• SAFAR-Air: From the Ministry of Earth Sciences with good scientific backing

Official Resources

• Bangalore AQI monitoring (for comparison with Delhi’s readings)
• Central Pollution Control Board: https://app.cpcbccr.com/AQI_India/ – Official government monitoring data
• Delhi Pollution Control Committee: https://www.dpcc.delhigovt.nic.in/ – Local regulatory authority with Delhi-specific information
• System of Air Quality and Weather Forecasting And Research: http://safar.tropmet.res.in/ – Scientific forecasting and research

Research and Education

• Centre for Science and Environment: https://www.cseindia.org/ – Research and policy analysis
• The Energy and Resources Institute: https://www.teriin.org/air-pollution – Studies on sources and solutions
• Council on Energy, Environment and Water: https://www.ceew.in/ – Policy research organization
• India Spend: https://www.indiaspend.com/breathe/ – Data journalism on air pollution

Emergency Information

• Delhi Disaster Management Authority: 1077 (Helpline)
• National Health Portal: https://www.nhp.gov.in/ – Health advisories during severe episodes
• All India Institute of Medical Sciences: Respiratory emergency – 011-26588500/26588700

For educational resources targeted at different age groups, the Centre for Science and Environment offers curriculum materials for schools. The Care for Air organization provides simplified guides for explaining air pollution to children in age-appropriate ways.

When evaluating air quality information sources, look for transparency about monitoring methodology, regular updates, clear identification of data sources, and scientific validation of claims.