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圖片: onlinelibrary.wiley.com
- The Hong Kong Medical Association estimates that air pollution can exacerbate asthma, impair lung function and raise the risk of cardio-respiratory death by 2 to 3 per cent for every increase of 10 micrograms per cubic metre of pollutants.
en.wikipedia.org/wiki/Air_pollution_in_Hong_Kong
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2020年6月3日 · The potential health effects of air pollution range from subtle physiological changes inside the body to florid symptoms such as nose and throat irritation, shortness of breath, coughing and chest tightness. People suffering from asthma or chronic respiratory diseases will experience an increase in symptoms when exposed to air pollutants.
The Air Quality Health Index (AQHI) compiled by the Environmental Protection Department (EPD) informs the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health.
- There Are 6 Main Pollutants in Hong Kong
- Pollution Is Associated with Serious & Chronic Health Consequences
- It’S Important to Understand The Difference Between Ozone
- Variation in Air Quality Indexes Depends on Interpretation of Sensor Data
- We Have Actually Seen Improvements in Air Quality in Hong Kong
- But Ozone Remains Hard to Control in Hong Kong
- Combating PM2.5 Remains A Key Goal
- It Is Harmful to Exercise and Work Outdoors During High Air Pollution Episodes
- Certain Supplements Help Combat Air Pollution Effects
- Environmental Justice Should Be Part of The Conversation
In Hong Kong, there are 6 main types of pollutants: sulphur dioxide, nitrogen oxides, carbon monoxide, ozone, PM10 and PM2.5 respirable fine particles, and hydrocarbons. According to David Ho, Assistant Director of the Air Policy Division under the government’s Environmental Protection Department (EPD), the main sources of these 6 main types of Hon...
We learned a lot about the serious health implications of poor air quality, especially right here in Hong Kong. The CEO of the Clean Air Network (CAN), Patrick Fung, spoke about the list of studies finding alarming complications associated with air pollution in children, including adverse birth outcomes, infant mortality, neurodevelopment, child ob...
What causes pollution? The two key players that worry researchers, doctors and officials are PM2.5 and ozone. PM2.5 is defined as particulates that can be suspended in the air, and are less than 2.5 microns in size. The main source of these tiny particles, which can get trapped in our airways and lungs, causing complications, are vehicle emissions ...
Have you ever wondered why different apps or websites show different levels of severity or health risk when it comes to air quality? Turns out, while the basic measurement system used around the world is fairly standard (all sensors are basically the same), there is nouniversal air quality information system, according to David Ho. The core differe...
While it might come as a surprise to many, Hong Kong’s air quality has actually improved over the past few years. According to David Ho, concentrations of all pollutants, except ozone, have been substantially reduced. PM2.5levels, in particular, peaked in 2004 but has since been falling (see above image), leading to more hours of high visibility in...
Good news aside, Hong Kong is still battling ground-level ozone pollution, which has risen over the years. As mentioned before, ozone is difficult to control because there are no specific sources to target for reduction, and ozone is a regional issue. Instead, it is formed by the interaction of ultraviolet (UV) light from the sun on nitrogen oxides...
On the other hand, other pollutants such as sulphur dioxide, carbon monoxide and particulates are easier to target because they come from direct or primary sources. Currently, the government is very active in targeting PM2.5 pollution because it remains the most dangerous for long-term health. For instance, the EPD has issued limits on the sulphur ...
While some might think that exercise is always beneficial, this is not always the case in the middle of a highly polluted day. According to Dr Marco Ho, during high pollution episodes, we should avoid exercising outdoors because it could negatively affect your Vo2 max and red blood cell count.
In addition to sticking to indoor exercise, Ho recommended taking more vitamin C and E, using apps such as PRAISE-HK to make informed decisions about any outdoor activity, and wearing masks if staying outdoors is unavoidable.
Patrick Fung made a point to bring up the health risks of poor air for roadside workers, such as those working on construction sites, and students in local schools with poor ventilation infrastructure face during poor air quality days. As he pointed out, they don’t have a choice in whether they are exposed to roadside pollution and staying indoors-...
The Government has set out Hong Kong’s Air Quality Objectives (AQOs) in the Air Pollution Control Ordinance (Cap. 311), and is required to review the AQOs at least once every five years to continuously improve air quality and safeguard public health.
2021年6月29日 · The ambient and roadside concentrations of major air pollutants have dropped substantially and visibility has been vastly improved. All these have brought noticeable health benefits to society and the community in Hong Kong. By 2020, Hong Kong had attained the major goals set out in the progress report in 2017.
2023年12月30日 · Hong Kong environmental authorities have warned of “very high” or “serious” health risks from air pollution in some parts of the city, pointing to a recent lack of strong winds to...
Rebound in air pollution creates greater health hazards. During the pandemic, Hong Kong saw an improvement in air quality, as the annual average concentrations of nitrogen dioxide (NO2), PM10 and PM2.5 recorded at general and roadside monitoring stations achieved historic lows in 2022.
