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Madurai Sulfur Dioxide (SO₂) Level

Tamil Nadu, India

Sulfur Dioxide (SO₂)

44ppb

Moderate

Last Updated: 2026-06-05 00:01 (Local Time)

Map

Madurai

Good

040

Moderate

Poor

380

Unhealthy

800

Severe

1600

Hazardous

2600+

What is the Current SO₂ Level?
Madurai

The current SO₂ level in Madurai based on the average air quality level across the city is 44 ppb making it acceptable, but sensitive individuals should be cautious.

2.8xAbove

The current SO₂ level in Madurai is 2.8x Above the recommended WHO guideline of 15.27 ppb.

AQI Graph

Historic Air Quality Graph of Sulfur Dioxide (SO₂)
Madurai

24 Hours

SO₂

Madurai

SO₂ (ppb)

04-06-2026Time05-06-2026

Time	Madurai
12:01am	53
12:31am	49
1:01am	49
1:31am	44
2:01am	45
2:31am	53
3:01am	47
3:31am	50
4:01am	53
4:31am	55
5:01am	48
5:31am	47
6:01am	47
6:31am	52
7:01am	52
7:31am	1
8:01am	1
8:31am	1
9:01am	1
9:31am	1
10:01am	1
10:31am	1
11:01am	2
11:31am	2
12:01pm	45
12:31pm	51
1:01pm	50
1:31pm	53
2:01pm	53
2:31pm	52
3:01pm	46
3:31pm	50
4:01pm	54
4:31pm	47
5:01pm	47
5:31pm	46
6:01pm	50
6:31pm	51
7:01pm	49
7:31pm	46
8:01pm	51
8:31pm	51
9:01pm	51
9:31pm	49
10:01pm	51
10:31pm	48
11:01pm	48
11:31pm	49
12:01am	44

Min. SO₂7:31am

Max. SO₂4:31am

Want air quality data?

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.

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

Chemical manufacturing

The production processes that emit sulfur dioxide.

Industries

Emissions from manufacturing and industrial processes.

Power plants generation

Released during the burning of fossil fuels for electricity.

Petroleum Refineries

Emits from refining crude oil into various products.

Heavy-duty vehicles

Exhaust from trucks and buses using diesel fuel.

Short-Term SO₂ Exposure Impacts

Nose irritation

Discomfort in the nasal passages.

Throat and lung irritation

Inflammation and pain in the throat.

Coughing and phlegmz

Persistent cough and mucus production.

Asthma attacks

Triggering of asthma symptoms or existing asthma.

Wheezing

High-pitched whistling sound when breathing.

Why you should care about Sulfur Dioxide (SO₂)?

Know More About SO₂ Sensor

Air Quality FAQs
at Madurai

Frequently Asked Questions About Air Quality

1. What is the current SO₂ level in Madurai?

The current real-time SO₂ level in Madurai is 44ppb (Moderate). This was last updated 2026-06-05 00:01 (Local Time).

2. When was the best SO₂ level in Madurai in the last 24 hours?

The best SO₂ level was 1 ppb (Good) at 7:31 AM (Local Time) during the last 24 hours.

3. When was the worst SO₂ level in Madurai in the last 24 hours?

The worst SO₂ level was 55 ppb (Moderate) at 4:31 AM (Local Time) during the last 24 hours.

4. What is the current trend of SO₂ levels in Madurai during last 24 hours?

The SO₂ levels in Madurai have been fluctuating throughout the last 24 hours. The levels have increased by highest 55 ppb at 4:31 AM (Local Time), lowest 1 ppb at 7:31 AM (Local Time).

5. What actions are recommended as per the current SO₂ level in Madurai?

Current SO₂ levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.