Preschools to remain open even if schools close when haze hits hazardous level: Desmond Lee

Desmond Lee announced that preschools could remain open even if primary and secondary schools closed when haze reached a hazardous level. The decision matters because severe air pollution can disrupt education while many families still need supervised care for young children.

The article gives a clear trigger: schools could close if the Pollutant Standards Index, or PSI, was forecast to become hazardous. Preschools, however, would follow a different operating decision. The headlines do not state the exact indoor measures preschools would use, so those details should not be assumed from the source.

This plan shows that haze responses may differ by age group and institution. It also highlights that closures could be based on forecasts, not only current readings. If pollution worsened, primary and secondary students might stay home while preschools continued operating under arrangements announced by the authorities.

The Pollutant Standards Index, or PSI, is a numerical measure used to communicate air quality. It combines pollution information into a reading that helps people and authorities judge health risk. The article identifies readings above 300 as hazardous, making them a basis for possible school closures.

On Singapore’s commonly used PSI scale, 0 to 50 is good, 51 to 100 is moderate, 101 to 200 is unhealthy, 201 to 300 is very unhealthy, and above 300 is hazardous. Thus, 300 is not merely a slightly poor reading. It marks the top of the very unhealthy range before the hazardous category begins.

Grace Fu warned that the PSI could go over 300 before the haze improved once the inter-monsoon period started. That warning matters because decisions could depend on forecasts. Desmond Lee said schools could close if the PSI forecast turned hazardous, while preschools would remain open.

A PSI reading of 300 signals extremely poor air compared with normal conditions. On Singapore’s standard scale, good air is 0 to 50, so 300 is six times the upper boundary of that range. It also sits at the highest point of the very unhealthy category.

The comparison becomes sharper across categories. Moderate air quality runs from 51 to 100, while unhealthy readings run from 101 to 200. Very unhealthy readings run from 201 to 300. Above 300 is hazardous, the level connected in the article with possible school closures.

The source gives a warning rather than a measured peak: Grace Fu said PSI could go over 300 before conditions improved when the inter-monsoon period began. This means the risk was not limited to a high reading already recorded. Forecasts could guide decisions before pollution reached the hazardous threshold.

Hazardous haze contains fine particles and other pollutants that can irritate the eyes, nose, throat, and lungs. It can cause coughing, sore throats, wheezing, and breathing difficulty. People with asthma or heart and lung conditions may face greater risks. These health effects make prolonged outdoor exposure especially concerning.

Schools may close because students spend much of the day in classrooms, travel to school, and may take part in outdoor activities. If the PSI forecast becomes hazardous, keeping students away from polluted air can reduce exposure. The article links a hazardous PSI forecast with possible school closures and rescheduling of O-Level papers.

The exact medical guidance is not provided in the source. Still, the reported policy shows that haze can change normal operations. Schools may stop lessons, move activities indoors, or postpone examinations. Preschools were treated separately, with their operations continuing even when ordinary schools closed.

The article reports different decisions for primary and secondary schools and for preschools. Ordinary schools could close when the PSI forecast became hazardous, while preschools would remain open. The source does not explain the policy’s full rationale, so the distinction should not be attributed to a specific stated reason.

Young children need protection because hazardous haze can affect breathing and irritate the eyes and throat. Practical protection generally means reducing outdoor activity, keeping children in cleaner indoor air, and following official health advice. The article itself does not list particular preschool precautions, such as masks or air-cleaning equipment.

The arrangement creates a practical balance between reducing exposure and keeping preschool services available. It also means preschools would need clear procedures if pollution worsened. The headlines provide the operating decision, but not the detailed safeguards, staffing rules, or indoor-air standards that would accompany it.

The article identifies seven companies in Indonesia as responsible for fires connected with the haze. Singapore planned to send them haze-prevention notices. This places responsibility on named corporate actors rather than treating the pollution as an unexplained regional event.

Smoke from fires can travel across national borders, so Singapore cannot control every source directly. Its response can include identifying suspected sources, contacting companies, issuing prevention notices, and working with Indonesian authorities. The source specifically reports the planned notices; it does not describe investigations, penalties, or legal proceedings.

Cross-border haze therefore requires action beyond Singapore’s schools and health advisories. The notices aim to prevent further fires at their source, while local authorities prepare for dangerous PSI levels. The article connects this regional responsibility with possible school closures, examination changes, and warnings about worsening pollution.

Vegetation and land fires in Indonesia release smoke and fine particles into the atmosphere. When winds blow toward Singapore, that pollution can cross the border and reduce air quality there. This is why fires in one country can trigger health warnings and school decisions in another.

Wind direction and weather conditions control how much smoke reaches Singapore and how long it remains. Stronger movement away from Singapore can improve conditions, while winds carrying smoke toward the island can worsen them. The article specifically warns that PSI could exceed 300 before the haze improves once the inter-monsoon period starts.

That forecast creates uncertainty for families and schools. Authorities may need to act on predicted PSI levels rather than wait for the worst readings. The reported responses include possible school closures, rescheduling O-Level papers, keeping preschools open, and sending prevention notices to seven companies in Indonesia.