Seoul Lifts Ultra-Fine Dust Advisory Amidst Ongoing Yellow Dust Concerns

South Korea - Ekhbary News Agency

Seoul Lifts Ultra-Fine Dust Advisory Amidst Ongoing Yellow Dust Concerns

The Seoul Metropolitan Government Research Institute of Public Health and Environment has officially announced the lifting of the ultra-fine dust (PM-2.5) advisory that was in effect across the city, effective from 11 PM on December 6. This decision comes after a period of heightened air pollution that began on December 4, bringing relief to residents who had been grappling with poor air quality. However, the authorities are quick to caution that vigilance remains paramount, as yellow dust originating from Northeast China continues to impact the region, leading to 'bad' levels of fine dust and prompting renewed calls for citizens to prioritize their respiratory health.

The advisory for ultra-fine dust was initially issued at 9 PM on December 5, in response to a significant surge in PM-2.5 concentrations. These microscopic particles, measuring less than 2.5 micrometers in diameter, pose a severe health risk due to their ability to penetrate deep into the lungs and even enter the bloodstream, potentially leading to serious respiratory and cardiovascular ailments. The deteriorating air quality in Seoul over the preceding days was primarily attributed to atmospheric stagnation, which allowed local air pollutants to accumulate, exacerbated by an additional inflow of fine dust from external sources.

According to officials from the Seoul Metropolitan Government Research Institute of Public Health and Environment, the improvement in air quality can largely be credited to the arrival of clean northwesterly winds. These winds played a crucial role in dispersing the stagnant pollutants and refreshing the air across the city. This natural phenomenon allowed the Institute to determine that air quality had recovered sufficiently, leading to the decision to lift the advisory after approximately 26 hours.

However, the lifting of this advisory does not signal a complete end to air quality challenges in the capital. Seoul city officials emphasized that despite the improved PM-2.5 levels, the ongoing inflow of yellow dust from Northeast China means that fine dust concentrations remain at a 'bad' level. Yellow dust, or 'Hwangsa,' often carries not only sand and soil particles but also heavy metals and other harmful substances, making it potentially more dangerous than typical fine dust. Citizens are therefore strongly advised to adhere strictly to basic respiratory health management guidelines, including wearing protective face masks (such as KF94 masks) when outdoors, minimizing outdoor activities, especially for vulnerable groups like children and the elderly, staying adequately hydrated, and practicing frequent hand washing.

The issue of air pollution, encompassing both ultra-fine dust and yellow dust, is a recurring challenge for Seoul and other major cities in the region, particularly during the autumn and winter months. The Seoul Metropolitan Government operates a comprehensive real-time air quality monitoring system and actively provides citizens with up-to-date information. Furthermore, the city is implementing various long-term policies aimed at reducing fine dust, such as restricting the operation of older diesel vehicles, promoting eco-friendly boilers, and enhancing dust control at construction sites. These domestic efforts are complemented by ongoing environmental cooperation initiatives with neighboring countries to combat transboundary pollution sources.

Experts suggest that atmospheric conditions during the colder months often lead to higher concentrations of fine dust. Periods of atmospheric stagnation combined with increased emissions from heating contribute significantly to the problem. The collective efforts of individual citizens in managing their health and proactive responses from governmental bodies are essential for ensuring a clearer sky over Seoul. While the recent advisory lift brings temporary relief, it is a crucial reminder that continuous vigilance and sustained action are necessary to address the persistent issues of fine dust and yellow dust.

Ekhbary News Agency