In this blog post, we will examine the real causes of fine dust and the hidden side of media reports, and reflect on how close we are to the truth.
Have you ever felt like you’ve breathed in fine dust? Probably not. Fine dust has no taste or smell, and even if it enters your mouth, you cannot detect it. Yet, when you look around on the streets, you can easily see people wearing masks. Do they wear masks because they can taste fine dust? Probably not. So how do they know it’s there? People have only recently become concerned about fine dust. This is not just because environmental pollution has worsened, but also because access to information has greatly improved. We can now check real-time information about our living environment, such as air quality, fine dust levels, and weather, through our smartphones and the internet.
In the past, we had to rely on news reports or announcements from the weather bureau, but now we can check these things anytime on our devices and adjust our behavior accordingly. This technological advancement and the normalization of information have heightened people’s environmental awareness, making fine dust a common concern in modern life.
If I were to ask someone wearing a mask on the street, “Why is fine dust dangerous?” they would probably pull out their smartphone, search for the answer, and respond as follows. “Fine dust particles are so small that they cannot be filtered out by the nose or bronchial tubes and enter the lungs, which is harmful to the human body.” I ask again, “Why does fine dust occur?” He continues searching and says, “It’s because rapid industrialization in China has destroyed forests and eliminated vegetation that holds soil in place. That’s why yellow dust and fine dust are carried by westerly winds all the way to Korea.” If I finally ask, “But how do we know how much fine dust is in the air?” he might respond with a dismissive expression, “Don’t you watch the news?” At first glance, his answers seem correct and based on some information. But that’s precisely the problem. The essence of the problem is not readily apparent, and we are simply accepting the visible phenomena and feeling reassured.
In fact, China is the country that has industrialized at the fastest pace in the world. In just 30 years, most of its 1.4 billion population has become urbanized, and an enormous amount of fossil fuels has been used. As a result, severe air pollution has occurred, and these pollutants are spreading to South Korea and Japan carried by westerly winds.
According to data from the Korea Environment Corporation and the National Institute of Environmental Research, approximately 30–50% of days with high concentrations of fine dust are caused by external factors, particularly from China. Therefore, it is true that China bears some responsibility for the fine dust problem in Korea. However, it is unbalanced to attribute the cause of the problem entirely to external factors. Korea has also had a negative impact on air quality through its industrialization.
Various domestic factors, such as the rapid increase in the number of vehicles, the operation of thermal power plants, dust from construction sites, and boilers in old buildings, continue to be major causes of fine dust. In particular, in the Seoul metropolitan area, the high density of vehicles and factories results in significant levels of pollutants generated within the region, and the proportion of causes varies by season.
Excluding spring and fall, when external factors are prominent, domestic sources are identified as the main causes during summer and winter. If we ignore these facts and blame external factors alone, we will not become the main actors in solving the problem and may instead drift further away from finding a solution. Another point to note is that public awareness and fear of fine dust do not always align with actual changes in air quality.
Since 2007, the annual average concentration of fine dust (PM2.5) in South Korea has gradually decreased, and the government’s fine dust reduction policies, management of old diesel vehicles, and conversion to eco-friendly fuels appear to be yielding results. However, media coverage of fine dust increased sharply around 2013, and public anxiety also rose. According to an analysis by the Korea Press Foundation, the number of articles covering fine dust increased sharply during this period, and advertisements and promotions for major mask brands also increased significantly. As a result, fine dust became not just an environmental issue but a “market factor” that influenced consumer behavior, and masks became essential items for health.
At this point, one might wonder: Are the masks we wear truly tools to block fine dust, or are they another barrier that prevents us from facing the truth? Of course, the masks themselves are not the problem. Wearing masks to block fine dust is both justified and necessary. However, if we spend too much time wearing masks, we may lose the voice we need to speak out. Our perspective on the issue may narrow, and we may stop questioning and instead simply accept the information presented to us. Perhaps we are wearing masks in the same way when it comes to various issues in society, not just fine dust.
It is not dangerous to wear a mask, but it is dangerous to be unable to take off a mask once you put it on. Our society tends to turn away from uncomfortable truths and choose comfortable lies. The reason is clear. The truth is often confusing and painful. However, avoiding the truth ultimately leads to bigger problems. You need to ask yourself whether the reason you are wearing a mask today is simply to avoid fine dust, or to avoid facing the reality you do not want to see. Is the mask you are wearing now a tool to protect your health, or a symbol of silence that hides your words and thoughts?
