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The Environmental Protection Department (EPD) has recorded higher than normal pollution levels. At 2pm today (October 17), the Air Quality Health Index (AQHI) at some general air monitoring stations reached 8 or above, corresponding to the "Very High" health risk category.
Under the influence of a dry continental airstream, the weather in Hong Kong is mainly fine with some haze and light to moderate northeasterly winds. Hong Kong is being affected by an airstream with higher background pollutant concentrations. The sunshine enhances photochemical smog activities and the formation of ozone during the daytime, resulting in high pollution in the region. The high level of ozone has promoted the formation of nitrogen dioxide, particularly in parts of the urban areas and at the roadside. It is expected that the AQHI at some general and roadside air monitoring stations may reach the "Serious" level later today.
According to the Hong Kong Observatory, the weather will be mainly fine with some haze until next Thursday, while isolated showers and sunny intervals will arrive next Friday. The pollution levels will remain higher than normal until close to the end of next week with arrival of few showers.
With a health risk category in the "Very High" range or above, children, the elderly and persons with existing heart or respiratory illnesses are advised to reduce physical exertion and outdoor activities to a minimum or avoid such activities. The general public are advised to reduce, or reduce to a minimum, outdoor physical exertion, and to reduce time outdoors, especially in areas with heavy traffic. As health effects of air pollutants may vary for individuals, persons who are in doubt or experience discomfort should seek advice from health-care professionals.
The public may visit the Centre for Health Protection's website (
www.chp.gov.hk/en/content/9/460/3557.html) for more information on health effects of air pollution and relevant health advice.
The Education Bureau (EDB) urges all schools to visit the EDB website for appropriate measures to safeguard students' health and take note of changes in the index. The relevant hyperlink is as follows:
www.edb.gov.hk/en/sch-admin/admin/about-activities/sch-activities-guidelines/index.html .
When the health risk category is at the "Very High" level, employers of outdoor workers performing heavy manual work are advised to assess the risk of outdoor work and take appropriate preventive measures to protect the health of their employees such as reducing outdoor physical exertion and the time of their stay outdoors, especially in areas with heavy traffic. At the "Serious" level, employers of all outdoor workers are advised to assess the risk of outdoor work and take appropriate preventive measures to protect the health of their employees.
Members of the public can check the current AQHI readings at the EPD's website (www.aqhi.gov.hk/en.html) or by calling the hotline 2827 8541.
Ends/Saturday, October 17, 2015
Issued at HKT 16:55
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