CPCB

Katihar Air Quality Index & Realtime Air Pollution

Lat: 25.5385 · Lon: 87.5704
Elevation: m · Offset: 19800s
AQI Score & Core Metrics
107
Poor(US-AQI standard)
050100150200300500
Good (0-50)Moderate (51-100)Poor (101-150)Unhealthy (151-200)Severe (201-300)Hazardous (301+)
PM2.522.8 µg/m³
PM1024.3 µg/m³
Weather & Climate Summary

Current Conditions

30°C

Humidity: 85%

UV Index0.65
Wind Speed5.4 km/h

Primary Air Pollutants Katihar (Bihar)

PollutantConcentrationDetails
PM2.523 µg/m³Fine particles
PM1024 µg/m³Coarse particles
SO₂3 µg/m³Sulphur dioxide
CO302 µg/m³Carbon monoxide
NO₂4 µg/m³Nitrogen dioxide
O₃138 µg/m³Ozone

Hourly forecast Katihar (Bihar)

TimeTempCondition
Now30°COvercastOvercast
18:0029°COvercastOvercast
19:0029°COvercastOvercast
20:0028°COvercastOvercast
21:0028°COvercastOvercast
22:0028°COvercastOvercast
23:0028°COvercastOvercast
00:0027°CLight drizzleLight drizzle
01:0027°CThunderstormThunderstorm
02:0027°CLight drizzleLight drizzle
03:0027°CModerate drizzleModerate drizzle
04:0027°CModerate drizzleModerate drizzle
05:0027°CLight drizzleLight drizzle
06:0027°CLight drizzleLight drizzle
07:0028°CModerate drizzleModerate drizzle
08:0028°CLight drizzleLight drizzle
09:0030°CLight drizzleLight drizzle
10:0031°CThunderstormThunderstorm
11:0031°CThunderstormThunderstorm
12:0032°CLight drizzleLight drizzle
13:0032°CThunderstormThunderstorm
14:0031°CThunderstormThunderstorm
15:0029°CThunderstorm with slight hailThunderstorm with slight hail
16:0030°CLight drizzleLight drizzle

Health Recommendations

Based on current air quality: Poor · AQI 107

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

Members of sensitive groups (children, elderly, and people with heart/lung disease) may experience health effects. The general public is unlikely to be affected immediately, but should monitor physical comfort.

Standard: US EPA AQI ScaleUpdated: Live
Cigarette Equivalent

1.0 per day

Equates to breathing local air

Weekly Exposure

7.0 cigarettes

Monthly Exposure

30 cigarettes

Risk Assessments

Prevent Health Problems

Elevated RiskHeadaches

Risk is Elevated for Poor conditions (AQI 107).

Common Symptoms

You might experience: Pressure or tightness around the forehead and temples, Sensitivity to light or smell, Fatigue or difficulty concentrating.

Do's
  • Choose indoor, clean indoor air when the AQI is elevated.
  • Stay hydrated and take short breaks from devices or harsh light if you are migraine-prone.
  • If you Make use of prescribed migraine meds, Keep close them accessible.
Don'ts
  • Try not to do intense outdoor exercise during worse AQI periods.
  • Don’t ignore worsening symptoms that feel unusual for you.
AQI Graph

Historical AQI Data Katihar (Bihar)

119
Min. AQIat 11:00 AM on 14th Jul
136
Max. AQIat 5:00 PM on 13th Jul
13-07-2026Time14-07-2026

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Air Quality FAQs at Katihar, Bihar

The current real-time AQI (US) level in Katihar, Bihar is 107 (Poor). 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 Katihar, Bihar have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.

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