General and roadside monitoring stations have recorded a higher than normal pollution level, and it will persist until a cooler replenishment of the northeast monsoon reaches the Guangdong coast overnight, and rain patches develop early next week.
The Environmental Protection Department said, as at 6pm today the Air Quality Health Index at the Sha Tin and Kwai Chung general stations, as well as the three roadside stations, reached 10+, while other stations were at 8 or above.
The corresponding health-risk categories are very high to serious.
With an Air Quality Health Index in the very high range or above, children, the elderly and people with existing heart or respiratory illnesses are advised to avoid physical exertion and outdoor activities, and reduce time outdoors, especially in areas with heavy traffic.
