Singapore Haze Situation Alert

Haze Alert: Singapore Residents Urged to Stay Informed and Protect Their Health

West Singapore Records High 1-Hour PM2.5 Reading of 152 at 8:00 a.m. on 9 October 2026

As hazy conditions persist across Singapore, residents and workers are reminded to stay alert, monitor air quality updates and take appropriate precautions to protect their health.

On Friday, 9 October 2026, Singapore experienced continued hazy conditions, with the western region recording a high 1-hour PM2.5 reading of 152 at 8:00 a.m. The other regions also recorded elevated readings, highlighting the importance of checking air quality before heading outdoors.

Fine particulate matter, known as PM2.5, consists of tiny airborne particles that can penetrate deep into the lungs. Exposure may cause respiratory discomfort and can pose greater health risks to vulnerable individuals, particularly those with existing heart or lung conditions.

1. Singapore's Haze Situation: Regional PM2.5 Readings

The following 1-hour PM2.5 readings were reported at 8:00 a.m. on 9 October 2026.

The western region recorded the highest reading at 152, followed by the southern region at 146 and the central region at 137.

These figures provide a snapshot of the air quality at that time. PM2.5 levels can fluctuate, so residents should consult the latest National Environment Agency (NEA) updates rather than assume that the readings remain unchanged throughout the day.

2. What Should You Do When PM2.5 Levels Rise?

Protecting your health begins with making informed decisions about outdoor activities.

According to the health advprovided for elevated 1-hour PM2.5 levels:

Healthy individuals: Reduce strenuous outdoor activities for the next hour when levels are elevated.

Elderly persons: Avoid strenuous outdoor activities when levels are elevated.

Pregnant women: Avoid strenuous outdoor activities when levels are elevated.

Children: Avoid strenuous outdoor activities when levels are elevated.

People with chronic heart or lung conditions: Avoid strenuous outdoor activities when levels are elevated.

If you experience breathing difficulties, chest discomfort or other concerning symptoms, stop the activity and seek appropriate medical advice. Anyone experiencing severe symptoms should seek urgent medical attention.

3. Check the Right Air Quality Information Before Going Outdoors

NEA recommends using different air quality indicators for different planning needs.

For activities planned within the next hour

Check the latest hourly PM2.5 readings before exercising, conducting outdoor work or participating in recreational activities. This helps you make timely decisions based on current conditions.

For activities planned for the following day

Refer to the 24-hour Pollutant Standards Index (PSI) forecast and the corresponding health advisories. These provide guidance for planning outdoor activities for the next day.

Do not rely on a single reading from earlier in the morning when conditions may have changed.

4. Workplace Safety: Managing Haze Exposure

Haze is also a workplace health consideration, particularly for employees who perform outdoor duties, work in loading and unloading areas, or move frequently between indoor and outdoor environments.

Employers and supervisors should remain alert to changing air quality conditions and communicate relevant advisories to affected personnel.

Practical precautions include:

Check NEA air quality updates before scheduling outdoor work or strenuous physical activities.

Consider postponing, reducing or rescheduling strenuous outdoor tasks when conditions warrant.

Reduce unnecessary outdoor exposure, particularly for employees in higher-risk groups.

Remind employees with chronic heart or lung conditions to follow applicable health advice.

Encourage workers to report respiratory discomfort or other symptoms promptly.

Review work arrangements when air quality deteriorates, taking into account the nature, duration and intensity of the task.

Where outdoor work must continue, employers should assess the exposure and implement suitable controls based on the prevailing conditions and applicable workplace requirements.

5. Stay Alert, Stay Safe

Haze conditions can change throughout the day, making regular monitoring essential. A responsible approach is to check the latest readings, understand the health advisories and adjust activities accordingly.

Residents can obtain updated air quality information and health advisories from the National Environment Agency (NEA).

Final Reminder

Don't let haze catch you off guard. Check the air quality, follow the health advisories and make safety-conscious decisions.

Whether you are exercising outdoors, commuting to work or managing workplace operations, a few simple precautions can help reduce unnecessary exposure and protect the health of yourself and those around you.

Stay informed. Breathe wisely. Protect your health.

Singapore Haze Situation

 

🇸🇬 Singapore Haze 2026: What Every Singaporean Needs to Know

Don’t panic—but don’t ignore it. Check the air, protect your health, and plan your day wisely.

Singapore is experiencing another episode of transboundary haze, and this time the air quality has moved into the Unhealthy range in several parts of the island.

On 4 September 2026, the 24-hour Pollutant Standards Index (PSI) in Singapore's Central region crossed 101, entering the Unhealthy range for the first time due to haze since October 2023. The situation continued into Saturday, 5 September, with the Central region recording a PSI of 117 at 8am. The West and East regions had also entered the Unhealthy range earlier in the morning before improving somewhat.

This is a timely reminder that haze is not simply about a smoky smell or reduced visibility. Fine particles in haze can affect our respiratory system and health—particularly when exposure is prolonged or combined with strenuous outdoor activity.

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🌫️ Where is the haze coming from?

According to the National Environment Agency (NEA), smoke plumes from fires in the southern and central parts of Sumatra and various parts of Kalimantan have been observed drifting towards Singapore.

Dry conditions in the region, together with prevailing southeasterly or southerly winds, could continue to bring transboundary haze to Singapore if the fires persist.

The regional situation is being closely monitored. The NEA's haze monitoring information reported moderate to dense smoke haze in parts of Kalimantan and Sumatra, with unhealthy conditions reported at some regional air-quality stations.

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📊 What does the PSI actually mean?

Many people look at the PSI number but may not know what action they should take.

According to NEA:

24-hour PSI	Air Quality	What it means
0–50	Good	Normal activities
51–100	Moderate	Generally normal activities
101–200	Unhealthy	Reduce prolonged or strenuous outdoor activity
201–300	Very Unhealthy	Minimise outdoor activities
>300	Hazardous	Avoid outdoor activities

🚨 The important number to remember: 101

Once the 24-hour PSI reaches 101, Singapore is officially in the Unhealthy range.

That doesn't mean everyone must stay indoors—but it does mean we should reduce prolonged or strenuous outdoor physical activity.

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👀 PSI or PM2.5—which should you watch?

This is one of the most important things every Singaporean should understand.

24-hour PSI = plan ahead

The 24-hour PSI and NEA's forecast are useful for deciding whether you should schedule outdoor activities tomorrow.

1-hour PM2.5 = check what's happening now

PM2.5 refers to very small particles that can penetrate deep into the respiratory system. NEA recommends checking the 1-hour PM2.5 reading for immediate outdoor activities, while using the 24-hour PSI forecast to plan ahead.

Simple rule:

Going out now? Check 1-hour PM2.5.
Planning tomorrow's outdoor activity? Check the 24-hour PSI forecast.

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🏃 Should you exercise outdoors?

When the PSI is Unhealthy, this is not the time to prove how tough you are.

Consider postponing or moving strenuous activities such as:

• Running

• Long-distance cycling

• Outdoor football

• Hiking

• Vigorous outdoor workouts

• Prolonged outdoor work

• Other activities involving heavy physical exertion

For healthy individuals, NEA advises reducing prolonged or strenuous outdoor physical exertion when the PSI is Unhealthy.

An indoor workout is a sensible alternative until conditions improve.

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👨‍👩‍👧‍👦 Vulnerable groups need extra care

Some people are more susceptible to the effects of haze.

These include:

• 👴 Elderly persons

• 👶 Children

• 🤰 Pregnant women

• ❤️ People with chronic heart conditions

• 🫁 People with chronic lung conditions

NEA advises vulnerable groups to minimise prolonged or strenuous outdoor physical exertion when the PSI is Unhealthy. People with chronic heart or lung conditions should avoid prolonged or strenuous outdoor physical exertion.

If someone develops symptoms or feels unwell, particularly those in vulnerable groups, medical attention should be sought promptly.

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🏠 What can you do at home?

During haze episodes:

1. Keep windows and doors closed when appropriate

This can help reduce the amount of outdoor polluted air entering the home.

2. Check your air-conditioner

Ensure your air-conditioning system is operating properly and that filters are maintained.

3. Consider using an air purifier

If you have an air purifier, check that it is functioning properly and that its filter is in good condition. NEA has specifically advised households to check their air purifiers when haze is imminent.

4. Stay hydrated

NEA advises members of the public to drink plenty of water during the haze situation.

5. Don't ignore symptoms

If you experience persistent breathing difficulty, chest discomfort, significant coughing or other concerning symptoms, seek medical attention.

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🏢 What about workplaces?

Haze is also a workplace safety and health issue.

When the 24-hour PSI reaches the Unhealthy range, Singapore's Government advises workplaces to implement appropriate measures, including reducing the duration of prolonged or strenuous work for healthy employees. Employers are reminded to follow MOM's haze guidelines and relevant tripartite advisories.

For outdoor or physically demanding work, employers should consider:

PLAN → MONITOR → CONTROL → COMMUNICATE

PLAN

Review outdoor work and strenuous activities.

MONITOR

Check the latest 1-hour PM2.5 and 24-hour PSI.

CONTROL

Reduce exposure, duration and physical exertion where appropriate.

COMMUNICATE

Keep employees informed of the haze situation and the precautions they should take.

Most importantly, supervisors should not assume that everyone will respond to haze in the same way.

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📱 Make the NEA haze advisory part of your daily routine

NEA has commenced daily haze advisories, issued from the evening during this haze episode.

The advisory provides a 24-hour PSI forecast to help people plan activities and events for the following day.

Before planning your next day's activities, make this a habit:

CHECK → ASSESS → ACT

CHECK
📱 Check NEA / haze.gov.sg / myENV.

ASSESS
📊 Look at the 24-hour PSI forecast and 1-hour PM2.5.

ACT
🏃 Adjust outdoor exercise, work and activities according to the conditions.

NEA Haze Microsite – haze.gov.sg

National Environment Agency – NEA

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🇸🇬 Don't panic. Don't ignore it.

Singapore has experienced haze episodes before, and the current situation may change quickly depending on regional fires, rainfall and wind conditions.

But haze should not be treated casually either.

The right response is not fear. It is awareness.

Check the air quality.

Protect vulnerable family members.

Reduce unnecessary strenuous outdoor activity.

Stay hydrated.

Keep your home environment comfortable.

And, importantly, follow the latest NEA advisory rather than relying on yesterday's PSI reading.

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🌏 One final message for every Singaporean

The haze may come from across our borders, but protecting ourselves starts at home, at work and in our daily choices.

A five-minute check of the NEA air-quality reading before heading out could make a meaningful difference.

“Don't just look at the sky. Check the PSI. Know the PM2.5. Protect yourself. Protect your family.”

🇸🇬 Stay safe, Singapore. Breathe smart.

Information in this article is based on the latest NEA information available on 5 September 2026. Haze conditions and air-quality readings can change throughout the day. Always refer to the latest NEA advisory and official air-quality readings for current conditions.