Malaysia Sulfur Dioxide (SO₂) Level
See Air Quality ofMalaysia
MapMalaysia
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
Malaysia
Analyze the real-time most air polluted cities in the country.
Standard Value
1.
Kuching, Sarawak
Good
3xbelow Standard
2.
Bintulu, Sarawak
Good
3xbelow Standard
3.
Putrajaya, Putrajaya
Good
4xbelow Standard
4.
Ipoh, Perak
Good
4xbelow Standard
5.
Kota Bharu, Kelantan
Good
4xbelow Standard
6.
Seremban, Negeri Sembilan
Good
4xbelow Standard
7.
Petaling Jaya, Selangor
Good
5xbelow Standard
8.
Shah Alam, Selangor
Good
5xbelow Standard
9.
Raub, Pahang
Good
5xbelow Standard
10.
Butterworth, Pulau Pinang
Good
5xbelow Standard
Last Updated: 19 Jul 2026, 04:16 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
