Singapore's western region records elevated PM2.5 levels after two-month gap

Air quality in Singapore's western region shifted into the elevated zone on Monday morning, with PM2.5 concentrations reaching 57 at 11am local time. The reading represents the first instance of elevated pollution levels in the area since October 27, signalling a potential renewal of haze conditions in the region.

Meanwhile, air quality measurements across the remainder of Singapore remained firmly within normal parameters at the same time, with PM2.5 readings holding at 11 throughout other monitoring stations across the island.

The National Environment Agency continues to monitor air quality conditions. Elevated PM2.5 levels are typically associated with transboundary haze events that affect the wider region, though the concentration of pollutants in the western zone suggests localised atmospheric conditions may also be contributing to the reading.

Singapore's air quality is regularly monitored through a network of stations, with the PM2.5 index serving as a key indicator of fine particulate matter concentration. Readings between 36 and 75 are classified as elevated, while readings above 75 are considered unhealthy.