KUCHING, July 25 -- Air quality in Kuching has deteriorated to an unhealthy level, with the Air Pollutant Index (API) reading at 112 as of 2pm.

The Department of Environment's (DoE) Air Pollution Index Management System (Apims) website showed Kuching had the second highest API reading in the country at 2pm after the 152 recorded in Johan Setia, Klang, Selangor.

The API readings for other areas in the state were at moderate level, however Sri Aman (96) and Mukah (92) were hovering close to unhealthy level.

An API reading of 51 to 100 is considered moderate, while API readings of 101 to 200 are categorised as unhealthy.

This morning, data from the Natural Resources and Environment Board (NREB) website showed Lundu registering an unhealt...