Air Quality Index in Howrah

Key Pollution Drivers

• Vehicular traffic on major corridors during peak hours
• Construction and roadside dust stirred by dry weather
• Open burning of waste or agricultural residue in peri-urban belts

Seasonal Patterns

• Cool months often trap particulate matter close to the surface because of temperature inversions
• Summer sunlight can elevate ground-level ozone especially in high traffic areas
• Monsoon showers temporarily reduce dust but may leave behind humid conditions that hold gaseous pollutants

Station Highlights

Pollutant Breakdown

Health Advisory

• Track AQI every few hours if you live with asthma, COPD, or heart disease
• Carry a certified respirator mask when readings enter the poor range or worse
• Keep children and elderly relatives indoors during pollution spikes and ensure air purifiers have clean filters

Local Actions & Resources

• Report visible garbage burning or industrial smoke plumes to your municipal helpline
• Plan errands and workouts during the cleanest two-hour band highlighted in the charts
• Service vehicles regularly and consider shared or public transport when pollution episodes intensify

Trend Explorer

Use the interactive charts below to analyse pollutant trends across different time ranges. Switch between pollutants to determine which one drives the overall AQI during specific hours of the day.