Sain Qaleh Sulfur Dioxide (SO₂) Level
Zanjan, Iran
2ppb
Last Updated: 2026-06-04 23:11:01 (Local Time)
MapSain Qaleh
What is the Current SO₂ Level?
Sain Qaleh
The current SO₂ level in Sain Qaleh based on the average air quality level across the city is 2 ppb, making it healthy and safe for everyone.
The current SO₂ level in Sain Qaleh is 7.6x Below the recommended WHO guideline of 15.27 ppb.
AQI Graph
Historic Air Quality Graph of Sulfur Dioxide (SO₂)
Sain Qaleh
Download 2024 Annual Data
World Air Quality Report
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 Sain Qaleh
Frequently Asked Questions About Air Quality
1. What is the current SO₂ level in Sain Qaleh?
The current real-time SO₂ level in Sain Qaleh is 2ppb (Good). This was last updated 2026-06-04 23:11:01 (Local Time).
2. When was the best SO₂ level in Sain Qaleh in the last 24 hours?
The best SO₂ level was 2 ppb (Good) at 11:31 PM, Jun 3, 2026 (Local Time) during the last 24 hours.
3. When was the worst SO₂ level in Sain Qaleh in the last 24 hours?
The worst SO₂ level was 4 ppb (Good) at 11:01 AM (Local Time) during the last 24 hours.
4. What is the current trend of SO₂ levels in Sain Qaleh during last 24 hours?
The SO₂ levels in Sain Qaleh remained stable over the last 24 hours as around 2 ppb.
5. What actions are recommended as per the current SO₂ level in Sain Qaleh?
The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.
