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Katihar Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Bihar

Last Updated: 2025-05-31 06:40:01 PM (Local Time)

Live AQI

Air Quality is

Moderate

pm10 : 67 µg/m³

PM2.5 : 25 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

32 °C

Last Updated: 2025-05-31 06:40:01 PM (Local Time)

Map

Katihar

Major Air Pollutants
Katihar

Particulate Matter(PM2.5)

25µg/m³

Particulate Matter(PM10)

67µg/m³

Carbon Monoxide(CO)

302ppb

Sulfur Dioxide(SO2)

3ppb

Nitrogen Dioxide(NO2)

6ppb

Ozone(O3)

8ppb

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AQI Graph

Historical Air Quality Data
Katihar

24 Hours

AQI

Katihar

Want air quality data?

AQI Trends - Annual Air Quality Changes
Katihar, Bihar, India

AQI

Year

AQI

Annual AQI Trends

2022

176AQI

2023

158AQI

-10%

Fall

2024

111AQI

-30%

Fall

2025

112AQI

0.9%

Rise

Overall Annual Percentage (%) change of AQI in (2022 to 2025)

-13%

Fall (Improved AQI)

Most & Least Polluted Months

Most PollutedDecember, 2022330AQI

Least PollutedJuly, 202450AQI

* This data analysis is from year 2022 - 2025

Katihar's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Mirchaibari

Moderate

India's Metro Cities
Air Quality Index

Ahmedabad

156

Bangalore

Chennai

Hyderabad

Kolkata

Mumbai

102

temp.30°C

hum.70%

New Delhi

281

Pune

Air Quality Calendar 2025
Katihar

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 155	2 Jan 145	3 Jan 165	4 Jan 156
5 Jan 158	6 Jan 157	7 Jan 165	8 Jan 158	9 Jan 151	10 Jan 169	11 Jan 158
12 Jan 140	13 Jan 134	14 Jan 143	15 Jan 122	16 Jan 130	17 Jan 137	18 Jan 125
19 Jan 128	20 Jan 126	21 Jan 145	22 Jan 182	23 Jan 152	24 Jan 160	25 Jan 165
26 Jan 161	27 Jan 168	28 Jan 167	29 Jan 167	30 Jan 172	31 Jan 166	1 Feb 163

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 161	27 Jan 168	28 Jan 167	29 Jan 167	30 Jan 172	31 Jan 166	1 Feb 163
2 Feb 160	3 Feb 148	4 Feb 143	5 Feb 148	6 Feb 128	7 Feb 116	8 Feb 127
9 Feb 139	10 Feb 148	11 Feb 129	12 Feb 121	13 Feb 98	14 Feb 133	15 Feb 148
16 Feb 133	17 Feb 116	18 Feb 134	19 Feb 137	20 Feb 132	21 Feb 135	22 Feb 131
23 Feb 99	24 Feb 110	25 Feb 109	26 Feb 123	27 Feb 119	28 Feb 125	1 Mar 121

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 99	24 Feb 110	25 Feb 109	26 Feb 123	27 Feb 119	28 Feb 125	1 Mar 121
2 Mar 91	3 Mar 88	4 Mar 86	5 Mar 86	6 Mar 85	7 Mar 109	8 Mar 112
9 Mar 129	10 Mar 124	11 Mar 130	12 Mar 127	13 Mar 109	14 Mar 109	15 Mar 120
16 Mar 117	17 Mar 95	18 Mar 94	19 Mar 85	20 Mar 88	21 Mar 97	22 Mar 99
23 Mar 72	24 Mar 103	25 Mar 109	26 Mar 125	27 Mar 130	28 Mar 130	29 Mar 110
30 Mar 107	31 Mar 118	1 Apr 112	2 Apr 126	3 Apr 124	4 Apr 114	5 Apr 119

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 107	31 Mar 118	1 Apr 112	2 Apr 126	3 Apr 124	4 Apr 114	5 Apr 119
6 Apr 115	7 Apr 101	8 Apr 88	9 Apr 80	10 Apr 80	11 Apr 78	12 Apr 81
13 Apr 73	14 Apr 68	15 Apr 71	16 Apr 88	17 Apr 76	18 Apr 72	19 Apr 84
20 Apr 100	21 Apr 101	22 Apr 115	23 Apr 111	24 Apr 111	25 Apr 112	26 Apr 113
27 Apr 77	28 Apr 65	29 Apr 68	30 Apr 64	1 May 72	2 May 70	3 May 84

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 77	28 Apr 65	29 Apr 68	30 Apr 64	1 May 72	2 May 70	3 May 84
4 May 78	5 May 82	6 May 73	7 May 87	8 May 87	9 May 82	10 May 95
11 May 89	12 May 81	13 May 82	14 May 88	15 May 77	16 May 75	17 May 68
18 May 66	19 May 61	20 May 58	21 May 55	22 May 58	23 May 66	24 May 67
25 May 64	26 May 77	27 May 81	28 May 80	29 May 101	30 May -	31 May -

Health Advice For People Living In
Katihar

1.1Cigarettes per day

Weekly 7.7 Cigarettes

Monthly 33.0 Cigarettes

Breathing the air in this location is as harmful as smoking 1.1 cigarettes a day.

Source:

Berkeley Earth

Solutions for Current AQI

Air PurifierTurn On
Car FilterMust
N95 MaskMust
Stay IndoorMust

Must turn on the air purifier to enjoy fresh air.

Prevent Health Problems: Understand Your Risks

Katihar

Asthma
Heart Issues
Allergies
Sinus
Cold/Flu
Chronic (COPD)

Mid. Chances of Asthma

Asthma

Risk of Asthma symptoms is Mid. when AQI is Moderate (50-150)

Moderate symptoms including frequent wheezing, noticeable shortness of breath, chest tightness, and persistent cough.

Do's :

Limit outdoor activities when AQI is poor.
Clean indoor air with an air purifier to reduce exposure.
Soothe the respiratory tract with herbal teas or warm water to help alleviate symptoms.

Don'ts :

Exercise outdoors without a mask.
Stay in smoky areas with strong fumes.

Most Polluted Cities 2025
India

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2025

World's Most PollutedCity Rankings (2024)

World's Most PollutedCountry Rankings(2024)

RankCityAQIAQI Status

Standard Value

Baghpat, India

Sonipat, India

Rohtak, India

Gurgaon, India

New Delhi, India

Ghaziabad, India

Fatehabad, India

Jalandhar, India

Jaipur, India

10.

Jind, India

Unhealthy

11xabove Standard

Last Updated: 31 May 2025, 01:28 PM

AQI City Rankings

Air Quality Solutions For Katihar
Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Monitor the air quality

Air Quality Sensors

Sensors to measure the air quality

Fresh Air Machine

Clean the air you breathe

Car Cabin Filter

Purify the air in your car

N95 Mask

Shield yourself from pollution

air quality solutions for offices for Katihar

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

air quality solutions for institutes for Katihar

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

air quality solutions for airport for Katihar

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

air quality solutions for bathroom for Katihar

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

Katihar's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Mobile App

Empower Your Decisions with Reliable Data

Your area’s real-time data with detailed parameters.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Air Quality FAQs
at Katihar

Frequently Asked Questions About Air Quality

What is the current AQI level in Katihar?

The current real-time AQI level in Katihar is 80 (Moderate) due to recent rainfall by 0.33mm/hr. This was last updated 2025-05-31 06:40:01 PM (Local Time).

When was the best AQI level in Katihar in the last 24 hours?

The best AQI level was 61 (Moderate) at 8:09 PM, May 30, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in Katihar in the last 24 hours?

The worst AQI level was 136 (Poor) at 6:10 AM (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Katihar during last 24 hours?

The AQI levels in Katihar have been fluctuating throughout the last 24 hours. The levels have increased by highest 136 at 6:10 AM (Local Time), lowest 61 at 8:09 PM, May 30, 2025 (Local Time).

What actions are recommended as per the current AQI level in Katihar?

Current AQI levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.