Air Quality (AQI)

Live Air Quality Index for Indian cities — European + US AQI, pollutants (PM2.5, PM10, CO, NO2, SO2, O3). no key needed.

Endpoint

GET/aqi?city=kolkata

Live AQI + pollutants for a city.

GET/aqi?lat=28.61&lon=77.21

Any location via coordinates.

Query Parameters

Parameter	Values	Required	Notes
city	kolkata, delhi, mumbai…	✅ (or lat/lon)	23 Indian cities
lat + lon	coordinates	✅ (or city)	lon/lan/lng aliases

Available Cities (23)

kolkata · mumbai · delhi · chennai · bangalore · hyderabad · pune · ahmedabad · surat · kanpur · nagpur · indore · agra · patna · varanasi · chandigarh · coimbatore · vadodara · nashik · amritsar · jaipur · lucknow · guwahati

Example

curl "https://api.apimitra.in/aqi?city=kolkata"

{
  "status": "ok",
  "api": "aqi",
  "location": "Kolkata",
  "time": "2026-08-03T02:30",
  "aqi": {
    "european": 35,
    "us": 66,
    "level": "Moderate",
    "color": "yellow",
    "emoji": "🟡"
  },
  "pollutants": {
    "pm2_5": 20.3,
    "pm10": 24.3,
    "carbon_monoxide": 241,
    "nitrogen_dioxide": 7.8,
    "sulphur_dioxide": 6.6,
    "ozone": 75
  }
}

AQI Levels

Value	Level	Emoji
0–50	Good	🟢
51–100	Moderate	🟡
101–150	Unhealthy for Sensitive Groups	🟠
151–200	Unhealthy	🔴
201–300	Very Unhealthy	🟣
300+	Hazardous	⚫

note

Both european and us AQI scales included. Pollutants units: PM2.5/PM10 = µg/m³, gases = µg/m³.