The air quality continued to deteriorate in the peninsular today after a brief respite over the weekend.
The Air Pollutant Index (API) for Negeri Sembilan’s Nilai - located near the Kuala Lumpur International Airport - was close to the ‘very unhealthy’ level this morning.
As of 11am, the API reading for Nilai was at 194, said a Department of Environment (DOE) spokesperson when contacted.
He said that the DOE’s website, which provides daily API readings taken at 11am and 5pm, has been experiencing high traffic congestion over the past few days.
API readings between 101-200 is considered ‘unhealthy’ while those between 201-300 is ‘very unhealthy’. Between 0-50 is ‘good’ and 51-100 ‘moderate’.
In total, 14 areas were declared ‘unhealthy’ this morning while 30 were ‘moderate’ and seven ‘good’.
But after a cloud-seeding induced shower this afternoon, there has been a slight drop in the API readings.
Nilai still registered the highest reading in air pollution with 173 as of 5pm.
The number of 'unhealthy' areas dropped marginally from 14 to 13, but 'moderate' areas increased from 30 to 33, while 'good' areas dropped from seven to four.
In the ‘unhealthy’ category were Perak's Seri Manjung (183 at 11am to 163 at 5pm), Kuala Selangor (181 to 165), Seremban (181 to 158), Putrajaya (171 to 156), Kuala Lumpur (159 to 155), Kajang (158 to 145), Shah Alam (145 to 140), Petaling Jaya (139 to 132), Port Klang (131 to 121), Malacca's Bukit Rambai (131 to 110), Gombak (127 to 128), Ipoh (113 to 105) and Malacca town (110 to 86). Sarawak, which was worst hit by the haze last week with several areas seeing their API readings exceed 200, was no longer in the ‘unhealthy’ zone today.