CPCB

Kolkata Air Quality Index & Realtime Air Pollution

Lat: 22.5473 · Lon: 88.3737
Elevation: m · Offset: 19800s
AQI Score & Core Metrics
83
Moderate(US-AQI standard)
050100150200300500
Good (0-50)Moderate (51-100)Poor (101-150)Unhealthy (151-200)Severe (201-300)Hazardous (301+)
PM2.533.5 µg/m³
PM1033.8 µg/m³
Weather & Climate Summary

Current Conditions

28°C

Humidity: 88%

UV Index2.05
Wind Speed4 km/h

Primary Air Pollutants Kolkata (West Bengal)

PollutantConcentrationDetails
PM2.534 µg/m³Fine particles
PM1034 µg/m³Coarse particles
SO₂24 µg/m³Sulphur dioxide
CO516 µg/m³Carbon monoxide
NO₂15 µg/m³Nitrogen dioxide
O₃102 µg/m³Ozone

Hourly forecast Kolkata (West Bengal)

TimeTempCondition
Now28°CModerate drizzleModerate drizzle
09:0030°CLight drizzleLight drizzle
10:0031°CLight drizzleLight drizzle
11:0032°CThunderstormThunderstorm
12:0033°CThunderstormThunderstorm
13:0033°CThunderstormThunderstorm
14:0033°CThunderstormThunderstorm
15:0032°CThunderstormThunderstorm
16:0029°CThunderstorm with slight hailThunderstorm with slight hail
17:0027°CThunderstormThunderstorm
18:0027°CThunderstormThunderstorm
19:0027°CThunderstormThunderstorm
20:0027°CThunderstormThunderstorm
21:0027°CThunderstormThunderstorm
22:0027°CDense drizzleDense drizzle
23:0026°CThunderstormThunderstorm
00:0026°CSlight rain showersSlight rain showers
01:0026°CLight drizzleLight drizzle
02:0026°CModerate drizzleModerate drizzle
03:0026°CThunderstormThunderstorm
04:0026°CModerate drizzleModerate drizzle
05:0026°CModerate rain showersModerate rain showers
06:0026°CSlight rain showersSlight rain showers
07:0026°CSlight rain showersSlight rain showers

Health Recommendations

Based on current air quality: Moderate · AQI 83

Moderate
  • Air PurifierTurn On
  • Car FilterMust
  • N95 MaskMust
  • Stay IndoorMust
Outdoor Activity Guidelines

Air quality is generally fine, though a small number of unusually sensitive people may notice mild effects. If you fall into a sensitive group, keep an eye on how you feel and go easy on strenuous outdoor activity.

Standard: US EPA AQI ScaleUpdated: Live
Cigarette Equivalent

1.5 per day

Equates to breathing local air

Weekly Exposure

10.5 cigarettes

Monthly Exposure

45 cigarettes

Risk Assessments

Prevent Health Problems

Mild RiskHeadaches

Risk is Mild for Moderate conditions (AQI 83).

Common Symptoms

You might experience: Tight, band-like pressure across the forehead and temples, Extra sensitivity to light, noise, or strong smells, Sluggishness and trouble staying focused.

Do's
  • Choose indoors with clean indoor air whenever pollution levels climb.
  • Stay hydrated through the day and take short breaks from devices or harsh light if migraines hit you easily.
  • Keep close any prescribed headache or migraine relief within reach.
Don'ts
  • Try not to power through demanding outdoor exercise while the AQI is worse.
  • Don’t brush off pain that feels sharper or different from your usual.
AQI Graph

Historical AQI Data Kolkata (West Bengal)

78
Min. AQIat 3:00 AM on 11th Aug
145
Max. AQIat 5:00 PM on 11th Aug
11-08-2026Time12-08-2026

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Air Quality FAQs at Kolkata, West Bengal

The current real-time AQI (US) level in Kolkata, West Bengal is 83 (Moderate). This was last updated recently.

The best AQI (US) level was generally lower during the early afternoon in the last 24 hours.

The worst AQI (US) level typically peaks during early morning or late evening hours due to temperature inversion.

The AQI (US) levels in Kolkata, West Bengal have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.

Current AQI (US) levels are moderate for everyone. It's advised to adjust your outdoor activities based on personal sensitivity.