Dif Sulfur Dioxide (SO2) Level
Salamanca, Guanajuato, Mexico

44ppb
Last Updated: 12 Oct 2025, 12:34am (Local Time)

Dif
What is the Current SO2 Level?
Dif
The current SO2 level at Dif is 44 ppb making it acceptable, but sensitive individuals should be cautious.
The current SO2 level in Dif is 2.8x Above the recommended WHO guideline of 15.27 ppb.
AQI Graph
Historical Air Quality Data
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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.Health Advice Based on Current SO2 Level In
Dif
Must turn on the air purifier to enjoy fresh air.
Get an Air PurifierRecommendations by 
Why you should care about Sulfur Dioxide (SO2)?
Know More About SO2 Sensor
Air Quality FAQs
at Dif
Frequently Asked Questions About Air Quality
What is the current SO2 level in Dif?
The current real-time SO2 level in Dif is 44 ppb (Moderate). This was last updated 12 Oct 2025, 12:34am (Local Time).
When was the best SO2 level in Dif in the last 24 hours?
The best SO2 level was 9 ppb (Good) at 1:34 AM, Oct 11, 2025 (Local Time) during the last 24 hours.
When was the worst SO2 level in Dif in the last 24 hours?
The worst SO2 level was 35 ppb (Good) at 12:04 AM (Local Time) during the last 24 hours.
What is the current trend of SO2 levels in Dif during last 24 hours?
The SO2 levels in Dif have been fluctuating throughout the last 24 hours. The levels have increased by highest 35 ppb at 12:04 AM (Local Time), lowest 9 ppb at 1:34 AM, Oct 11, 2025 (Local Time).
What actions are recommended as per the current SO2 level in Dif?
Current SO2 levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.