Air quality in Singapore remained in the moderate range on Friday, Oct. 2, as haze conditions improved for a second consecutive day, although smoke drifting from parts of Indonesia continued to pose a risk.
At 9 a.m., the 24-hour Pollutant Standards Index ranged from 61 to 75 across Singapore’s five regions. Central Singapore recorded the highest reading at 75, followed by the eastern and southern regions at 72 each. All readings remained within the moderate range.
One-hour PM2.5 readings were also within the normal band across the island, indicating that immediate fine-particle pollution levels were not elevated at the time.
The improvement follows a brief deterioration in air quality late last month. Singapore experienced unhealthy PSI readings in several areas on Sept. 29 and 30, with the central region reaching 164 on Sept. 29, the highest level recorded during the recent haze episode.
Showers over Singapore and nearby areas have helped improve conditions. However, smoke haze from southern Sumatra and Kalimantan continues to be observed, with some plumes from southern Kalimantan drifting toward Singapore.
Weather conditions could still influence air quality in the coming days. Although showers are forecast over Singapore and surrounding areas, prevailing southeasterly and southerly winds may transport smoke haze toward the island.
The 24-hour PSI forecast remains in the moderate to low-unhealthy range, meaning conditions could worsen temporarily if smoke becomes more concentrated or wind patterns change.
Residents planning outdoor activities are advised to check the latest one-hour PM2.5 readings, which are intended to provide guidance for immediate outdoor activities. The 24-hour PSI forecast can be used to plan activities for the following day.
For now, Singapore’s air quality has moved away from the unhealthy levels recorded earlier in the week, but the continuing presence of smoke plumes in nearby parts of Indonesia means the haze situation remains closely watched.
