Air quality in Patna

Air quality index (AQI) and PM2.5 air pollution in Patna

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Air Quality contributors Sources

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Weather

What is the current weather in Patna?

Weather icon
WeatherMist
Temperature80.6°C
Humidity36%
Wind9.2 mp/h
Pressure1007 mb
Air pollution has cost an estimated1,600 deaths*in Patna in 2021LEARN MORE*Air pollution also cost approximately $240,000,000 USD in Patna in 2021.

live aqi city ranking

Real-time India city ranking

#cityUS AQI
1 Loni, Uttar Pradesh

294

2 Dasna, Uttar Pradesh

268

3 Bawana, Delhi

257

4 Durgapur, West Bengal

256

5 Pitampura, Delhi

235

6 Daurala, Uttar Pradesh

216

7 Hisar, Haryana

205

8 Dadri, Uttar Pradesh

201

9 Guwahati, Assam

198

10 Bahadurgarh, Haryana

192

(local time)

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live Patna aqi ranking

Real-time Patna air quality ranking

#stationUS AQI
1 IGSC Planetarium Complex, Patna - BSPCB

163

(local time)

SEE WORLD AQI RANKING

US AQI

163

live AQI index
Unhealthy

Human face indicating AQI level

Overview

What is the current air quality in Patna?

Air pollution levelAir quality indexMain pollutant
Unhealthy 163 US AQItrendPM2.5
PollutantsConcentration
PM2.5
78 µg/m³trend
o3
56.1 µg/m³trend
no2
94 µg/m³trend
so2
15.2 µg/m³
co
1830 µg/m³trend

Health Recommendations

How to protect from air pollution in Patna?

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An open window iconClose your windows to avoid dirty outdoor air
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Forecast

Patna air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Tuesday, Feb 23

Unhealthy 193 US AQI

Human face indicating AQI level
Wednesday, Feb 24

Unhealthy 191 US AQI

Human face indicating AQI level
Thursday, Feb 25

Unhealthy 170 US AQI

Human face indicating AQI level
Today

Unhealthy 172 US AQI

Human face indicating AQI level
Weather icon91.4°62.6°
Wind rotating 276 degree

8.9 mp/h

Saturday, Feb 27

Unhealthy for Sensitive Groups 144 US AQI

Human face indicating AQI level
Weather icon95°60.8°
Wind rotating 292 degree

8.9 mp/h

Sunday, Feb 28

Unhealthy 159 US AQI

Human face indicating AQI level
Weather icon95°64.4°
Wind rotating 290 degree

11.2 mp/h

Monday, Mar 1

Unhealthy for Sensitive Groups 143 US AQI

Human face indicating AQI level
Weather icon96.8°64.4°
Wind rotating 259 degree

6.7 mp/h

Tuesday, Mar 2

Unhealthy for Sensitive Groups 137 US AQI

Human face indicating AQI level
Weather icon95°66.2°
Wind rotating 279 degree

8.9 mp/h

Wednesday, Mar 3

Unhealthy for Sensitive Groups 135 US AQI

Human face indicating AQI level
Weather icon93.2°60.8°
Wind rotating 285 degree

4.5 mp/h

Thursday, Mar 4

Unhealthy for Sensitive Groups 136 US AQI

Human face indicating AQI level
Weather icon95°60.8°
Wind rotating 269 degree

6.7 mp/h

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Historical

Historic air quality graph for Patna

How to best protect from air pollution?

Reduce your air pollution exposure in Patna

AIR QUALITY ANALYSIS AND STATISTICS FOR Patna

What is the air quality index of Patna?

Patna is the capital city of Bihar and is situated on the banks of the river Ganges in Eastern India. It is also very close to three other large river systems which not only make it make it unique but also the largest riverine city in the world. Towards the end of 2020 Patna experienced some extremely poor air quality with some days returning readings from the hazardous zone. The average PM2.5 measurement for 2019 was 82.1 µg/m³. Which was an improvement on the 2018 and 2017 figures which were 119.7 µg/m³ and 118.5 µg/m³ respectively. For just 2 months in 2019 Patna experienced “Moderate “air quality with figures in the low 30s. Four of the remaining months put it in the “Unhealthy” category with figures between 55.5 and 150 µg/m³. During November, December and January the air quality was recorded as being in the “Very unhealthy” bracket with figures of between 150.5 to 250.4 µg/m³. The remaining three months recorded levels put Patna in the “Unhealthy for sensitive groups” category. These quoted figures are a direct indication of the air quality index with figures recommended by the World Health Organisation (WHO).

Why Patna is polluted?

In November 2019, Patna was declared to be the most polluted city in Bihar with PM2.5 levels reaching a staggering 428 µg/m³. The reason behind this sharp unexpected rise is that, due to floods, straw from Paddy fields is being burnt in nearby areas which adds particles to the fog that is already present there which formed because of the governments’ construction works being carried out in the city. The State Pollution Control Board has complained to the local authorities about the burning of garbage and stubble in the fields. Their answer was that this trend needs to be suspended immediately with the cooperation of the Department of Agriculture, otherwise the situation will worsen.

One of the more unusual reasons for the poor air quality is due to the river Ganges changing its course over the past two decades. Over this time, it has moved 4 kilometres away from the city, leaving large areas of dry sand which was once the river bed. This dry sand is picked up by the strong winds blowing in from the Himalayas and depositing it across the city.

This situation is compounded by a large amount of traffic on the roads which churn up the dust after it has settled and send it airborne once more. The mining of sand has been stopped but the transportation of it on open lorries continues unchecked.

The construction industry needs to be encouraged to shield the spread of dust into the environment and spray the ground with water to stop the dust rising up. These regulations are seldom adhered to for any notable length of time.

Is air pollution in Patna getting worse?

People still burn wood, coal and dried dung cakes as fuel both for cooking and for heating purposes in the cooler months. Dried leaves and other organic matter are often disposed of in this way. According to the website operated by the Bihar State Pollution Control Board (BSPCB) the AQI in Patna was 430 at noon on 27th November 2019 falling slightly to 427 at 3 pm and 425 at 4 pm. It had been 419 on 26th November and 404 on the day before. All of these figures classify it as “severe”. It fell slightly over the next 2 consecutive days to 395 and 398, but these figures are still classed as “Very Poor”. The board added that the figures were not as accurate as was thought because they all came from just one monitoring station. Four new ambient stations were added during the following month.

What can be done to improve the air quality in Patna?

The local authorities intend to plant trees on the dried-up river bed to create a green zone. The land will be very fertile and trees should soon establish themselves as a green belt and stop the sand from blowing away. The board intend to plant up to 117 varieties of local trees from between 3 to 20 metres high, to help combat climate change. Unfortunately, due to the lack of funds, this project has yet to start.

The Central Pollution Control Board considers PM2.5 levels in the air to be a normal range from 60 to 90 µg/m³, but according to the World Health Organization (WHO) standard, the annual average of PM2.5 should not exceed 40 µg/m³ (micrograms per cubic meter). During the last year, for not a single day has the air of Patna and Muzaffarpur been recorded at the standard level of the World Health Organization.

What are the effects on health through breathing in Patna’s polluted air?

Towards the end of 2020, measurements were taken from the monitoring stations which indicated that Patna was experiencing pollution levels classed as “Hazardous”. The figures are in excess of US AQI 300, getting as high as 369 on some days.

With pollution at these levels, the general advice is to stay at home and close all doors and windows to prevent the dirty air from entering and avoid any outdoor activity, if possible. If a trip outside is unavoidable then it is advisable to wear a good quality mask and limit the time spent away from home.

Even people who are healthy can suffer health effects from exposure to polluted air. This will vary from person to person and it depends on many factors such as the type of pollutant and its concentration level, your current state of health and the length of time exposed to the dirty air.

High levels of pollution cause respiratory illnesses and put extra stress on the heart and lungs. Cells can become irreparably damaged, too. The ageing of the lungs accelerates as they must work harder to get the level of oxygen that the body needs. Diseases such as asthma, bronchitis, emphysema and even cancer can be attributed to exposure to polluted air.

The most susceptible groups of people are those with existing medical problems, pregnant women, children under the age of 14 years and senior citizens.

Patna air quality data sources

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