Vietnam Sulfur Dioxide (SO₂) Level
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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.
Most Polluted Cities 2026
Vietnam
Analyze the real-time most air polluted cities in the country.
Standard Value
1.
Thanh pho Thai Nguyen, Thai Nguyen
Good
8xbelow Standard
2.
Vinh, Nghe An
Good
8xbelow Standard
3.
Bac Ninh, Bac Ninh
Good
8xbelow Standard
4.
Cao Bang, Cao BaNg
Good
8xbelow Standard
5.
Da Nang, Da Nang
Good
8xbelow Standard
6.
Ha Long, Quang Ninh
Good
8xbelow Standard
7.
Tra Vinh, Tra Vinh
Good
8xbelow Standard
8.
Bac Giang, Bac Giang
Good
8xbelow Standard
9.
Lang Son, Lang Son
Good
8xbelow Standard
10.
Hai Duong, Hai Duong
Good
8xbelow Standard
Last Updated: 03 Jun 2026, 11:35 PM
AQI City RankingsUncovering 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
