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Arrah Sulfur Dioxide (SO₂) Level

Bihar, India

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Sulfur Dioxide (SO₂)

1ppb



Good

Last Updated: 2026-06-04 03:01 (Local Time)

Good SO₂ level in Arrah
Map

Arrah

Good
040
Moderate
80
Poor
380
Unhealthy
800
Severe
1600
Hazardous
2600+

What is the Current SO₂ Level?

Arrah

The current SO₂ level in Arrah based on the average air quality level across the city is 1 ppb, making it healthy and safe for everyone.


15.2xBelow

The current SO₂ level in Arrah is 15.2x Below the recommended WHO guideline of 15.27 ppb.

AQI Graph

Historic Air Quality Graph of Sulfur Dioxide (SO₂)

Arrah

Arrah
SO₂ (ppb)
.
03-06-2026Time04-06-2026
1
Min. SO₂3:31am
3
Max. SO₂4:01pm

Download 2024 Annual Data

World Air Quality Report

Globe

Sulfur Dioxide (SO₂): Sulfur dioxide is the major component in acid rain as it easily dissolves in the water and forms sulfuric acid. And SO2 in acid rain can harm forests, crops, and aquatic ecosystems, change soil acidity, and deteriorate building materials and historical monuments.

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Uncovering the Sources of Sulfur Dioxide (SO₂): Where Does It Come From?

Chemical manufacturing

Chemical manufacturing

The production processes that emit sulfur dioxide.
Industries

Industries

Emissions from manufacturing and industrial processes.
Power plants generation

Power plants generation

Released during the burning of fossil fuels for electricity.
Petroleum Refineries

Petroleum Refineries

Emits from refining crude oil into various products.
Heavy-duty vehicles

Heavy-duty vehicles

Exhaust from trucks and buses using diesel fuel.

Short-Term SO₂ Exposure Impacts

Nose irritation

Nose irritation

Discomfort in the nasal passages.
Throat and lung irritation

Throat and lung irritation

Inflammation and pain in the throat.
Coughing and phlegmz

Coughing and phlegmz

Persistent cough and mucus production.
Asthma attacks

Asthma attacks

Triggering of asthma symptoms or existing asthma.
Wheezing

Wheezing

High-pitched whistling sound when breathing.

Air Quality FAQs

at Arrah

Frequently Asked Questions About Air Quality

What is the current SO₂ level in Arrah?

The current real-time SO₂ level in Arrah is 1ppb (Good). This was last updated 2026-06-04 03:01 (Local Time).

When was the best SO₂ level in Arrah in the last 24 hours?

The best SO₂ level was 1 ppb (Good) at 3:31 AM (Local Time) during the last 24 hours.

When was the worst SO₂ level in Arrah in the last 24 hours?

The worst SO₂ level was 3 ppb (Good) at 4:01 PM (Local Time) during the last 24 hours.

What is the current trend of SO₂ levels in Arrah during last 24 hours?

The SO₂ levels in Arrah remained stable over the last 24 hours as around 1.1875 ppb.

What actions are recommended as per the current SO₂ level in Arrah?

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.