Hong Kong residents are being warned of high health risks due to air pollution, which is expected to remain elevated into Monday. The city’s Air Quality Health Index (AQI) reached a “very high” risk level at eight of the Environmental Protection Department’s (EPD) 18 monitoring stations on Sunday. Authorities have cautioned that some stations could see AQI levels classified as “high” or worse on Monday.
As of Monday morning, the city had the fourth worst AQI in the world, according to data from iqair.com, trailing only Lahore, Delhi, and Shenzhen.
Air Pollution Due to Dusty Air Stream
The EPD explained that the pollution was caused by a dusty air stream, which increased levels of suspended particulates. The monsoon has been weakening, which means the winds are no longer effective in dispersing the pollutants. This is expected to lead to an increase in pollution levels across the region.
“With the monsoon moderating gradually, winds in Hong Kong are expected to weaken and become unfavorable for pollutant dispersion, leading to an increase in pollution levels,” the EPD warned on Monday.
Health Risks and Advice for Vulnerable Groups
The “very high” AQI classification is just below the most severe “serious” category. Schools have been advised to ensure the health of students, and the public has been urged to take precautions. The EPD specifically recommended that vulnerable groups, including children, the elderly, and those with heart or respiratory conditions, minimize outdoor activities.
Employers of outdoor workers have also been advised to take steps to protect their staff’s health.
PM2.5 Levels and Health Concerns
PM2.5, fine particulate matter measuring less than 2.5 micrometers, reached dangerous levels in Hong Kong on Monday. As of 7 a.m., PM2.5 levels in Central were recorded at 95.7. PM2.5 is a key indicator of air pollution and is known to cause serious health issues, including heart and lung diseases, asthma, and bronchitis.
According to the World Health Organization, air pollution contributes to 6.7 million premature deaths globally every year.
Hong Kong’s Air Quality Ranking
On Monday morning, Hong Kong’s AQI was ranked the fourth worst in the world, as reported by iqair.com. Lahore, Pakistan, Delhi, India, and Shenzhen, China, had worse air quality at the time.
Residents are advised to stay indoors and take appropriate measures to protect their health while the air quality remains poor.
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