SINGAPORE, September 4, 2026 — Singapore has activated a series of measures to protect the public after the country’s 24-hour Pollutant Standards Index entered the unhealthy range in the central region.

The National Environment Agency reported that the 24-hour PSI reached 101 at 7am on September 4, marking the first time since October 2023 that haze had pushed the index into the unhealthy category.

Government Agencies Activate Response Plans

Government agencies participating in Singapore’s Haze Task Force have begun implementing their respective action plans and public advisories.

The measures are intended to reduce the potential health impact of haze and help residents make informed decisions about outdoor activities.

The authorities are also monitoring the situation closely as conditions develop.

Daily Haze Advisories to Begin

The National Environment Agency announced that it will begin issuing daily haze advisories from the evening of September 4.

The advisories will include a forecast of the 24-hour PSI for the following day. This information is intended to help members of the public plan outdoor activities, events and other activities that could be affected by deteriorating air quality.

Public Urged to Reduce Outdoor Exposure

Health guidance accompanying the government response emphasises that the effects of haze can vary from person to person.

Individual health conditions, the level of pollution and the amount and intensity of outdoor exposure can all influence the potential impact.

Residents are therefore advised to reduce unnecessary outdoor activity and physical exertion when air quality deteriorates.

Greater Attention for Vulnerable Groups

People who may be more sensitive to air pollution are expected to take additional precautions when haze levels rise.

The authorities are encouraging residents to pay attention to official air-quality information and adjust their activities according to the conditions.

The approach is designed to ensure that public-health precautions can be strengthened as pollution levels change.

Air Quality Monitoring Continues

Singapore’s authorities will continue monitoring the PSI and other indicators as part of the national haze response.

The daily forecast is expected to provide residents with a clearer picture of likely air-quality conditions over the following 24 hours.

This information can also help organisers and businesses make decisions about outdoor activities and events.

Coordinated Government Response

Singapore’s Haze Task Force brings together multiple government agencies to coordinate the country’s response when haze conditions become a concern.

The latest activation demonstrates the importance of coordinated action when air pollution reaches levels that could affect public health.

Authorities will continue assessing the situation and updating the public through official advisories.

Public Cooperation Remains Important

Government agencies have stressed the importance of residents following health advice during periods of poor air quality.

Reducing strenuous outdoor activity and staying informed about the latest PSI forecasts can help individuals manage their exposure.

The new daily haze advisories are intended to make this information more accessible and useful for planning.

Singapore Steps Up Preparedness

The activation of the Haze Task Force measures marks a significant response to the deterioration in air quality on September 4.

With the PSI entering the unhealthy range, Singapore is combining real-time monitoring, public-health advice and coordinated agency action.

The government will continue tracking the haze situation while providing residents with updated information to help them make safer decisions.