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Ha Noi Truong THCS Van Yen Ha dong Sulfur Dioxide (SO₂) Level

Hanoi, Ha Noi, Vietnam

Sulfur Dioxide (SO₂)

2ppb

Good

Last Updated: 2026-07-13 22:01 (Local Time)

Map

Ha Noi Truong THCS Van Yen Ha dong

Good

040

Moderate

Poor

380

Unhealthy

800

Severe

1600

Hazardous

2600+

What is the Current SO₂ Level?
Ha Noi Truong THCS Van Yen Ha dong

The current SO₂ level at Ha Noi Truong THCS Van Yen Ha dong is 2 ppb making it healthy and safe for everyone in the area.

7.6xBelow

The current SO₂ level in Ha Noi Truong THCS Van Yen Ha dong is 7.6x Below the recommended WHO guideline of 15.27 ppb.

AQI Graph

Historic Air Quality Graph of Sulfur Dioxide (SO₂)
Ha Noi Truong THCS Van Yen Ha dong

24 Hours

SO₂

Ha Noi Truong THCS Van Yen Ha dong

SO₂ (ppb)

12-07-2026Time13-07-2026

Time	Ha Noi Truong THCS Van Yen Ha dong
10:01pm	2
10:31pm	1
11:01pm	1
11:31pm	1
12:01am	1
12:31am	2
1:01am	2
1:31am	2
2:01am	2
2:31am	2
3:01am	2
3:31am	2
4:01am	2
4:31am	2
5:01am	2
5:31am	2
6:01am	2
6:31am	2
7:01am	2
7:31am	2
8:01am	2
8:31am	2
9:01am	2
9:31am	2
10:01am	2
10:31am	1
11:01am	1
11:31am	2
12:01pm	2
12:31pm	2
1:01pm	1
1:31pm	1
2:01pm	1
2:31pm	1
3:01pm	1
3:31pm	2
4:01pm	1
4:31pm	2
5:01pm	2
5:31pm	1
6:01pm	2
6:31pm	1
7:01pm	2
7:31pm	1
8:01pm	2
8:31pm	1
9:01pm	2
9:31pm	1
10:01pm	2

Min. SO₂10:31pm

Max. SO₂10:01pm

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 Ha Noi Truong THCS Van Yen Ha dong

Frequently Asked Questions About Air Quality

1. What is the current SO₂ level in Ha Noi Truong THCS Van Yen Ha dong?

The current real-time SO₂ level in Ha Noi Truong THCS Van Yen Ha dong is 2ppb (Good). This was last updated 2026-07-13 22:01 (Local Time).

2. When was the best SO₂ level in Ha Noi Truong THCS Van Yen Ha dong in the last 24 hours?

The best SO₂ level was 1 ppb (Good) at 10:31 PM, Jul 12, 2026 (Local Time) during the last 24 hours.

3. When was the worst SO₂ level in Ha Noi Truong THCS Van Yen Ha dong in the last 24 hours?

The worst SO₂ level was 2 ppb (Good) at 10:01 PM, Jul 12, 2026 (Local Time) during the last 24 hours.

4. What is the current trend of SO₂ levels in Ha Noi Truong THCS Van Yen Ha dong during last 24 hours?

The SO₂ levels in Ha Noi Truong THCS Van Yen Ha dong remained stable over the last 24 hours as around 1.6122448979591837 ppb.

5. What actions are recommended as per the current SO₂ level in Ha Noi Truong THCS Van Yen Ha dong?

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.