In the heart of Seoul, the arrival of spring has brought with it more than just cherry blossoms and warmer days—it’s also ushered in a citywide campaign for cleaner air and healthier neighborhoods. Over the past week, thousands of residents, environmental officials, and local organizations have rolled up their sleeves to tackle the city’s persistent dust and pollution problem, all as part of a coordinated effort to improve urban cleanliness and air quality.
On March 24, 2026, Samjeon-dong in Songpa-gu saw about 100 people, including environmental officials and local residents, gather for a spring cleaning event that covered a 1.96-kilometer route. According to Herald Economy, the group collected street litter and cigarette butts, cleaned around storm drains, and made their way past key community landmarks. As they worked, dust suction vehicles and water spraying trucks followed closely behind, vacuuming up accumulated dirt before soaking the roads to keep dust from rising again. One dust suction vehicle operator noted, “After cleaning the roads in spring, the amount of dust collected in the suction tank is about 30% higher than in other seasons,” adding that the break from street cleaning during winter and the increase in fine dust during spring make this time of year particularly challenging.
This flurry of cleaning activity wasn’t limited to just one neighborhood. Songpa-gu mobilized a massive operation on March 24 and 25, deploying 3,000 participants across all 27 neighborhoods. The district brought out six water spraying vehicles, eight dust suction trucks, seven street surface cleaning vehicles, and five small street cleaners. A Songpa-gu official told Herald Economy, “Such large-scale cleaning is highly effective in removing the increased fine dust that appears in March.”
The timing of these efforts coincided with ‘Seoul Clean Day’ on March 25, a city-designated date to concentrate cleaning activities. Other districts joined in as well: Gangbuk-gu declared a ‘spring cleaning week’ from March 23 to 27, involving both residents and public institutions in scrubbing down public offices, major facilities, and 12 main roadways with a fleet of 12 large cleaning vehicles. In Mapo-gu, 1,750 people participated in a district-wide event focusing on busy areas like Red Road and Sangsang Madang, while Jungnang-gu held a targeted cleaning day on March 18, prioritizing indoor air quality monitoring in childcare centers, medical facilities, and large apartment complexes. They also cracked down on vehicle emissions, enforcing standards and issuing fines where necessary.
Seocho-gu, meanwhile, split its district into three zones for an intensive campaign from March 23 to 25. Teams washed 246 public facilities and cleaned 176 recycling bins, 38 garbage bins, 29 smoking booths, and three ashtrays. The aim was to remove the grime of winter and improve both street environments and the city’s overall appearance. “Through this village-wide cleaning, we’ve removed the accumulated grime of winter and cleaned every alleyway,” said Kim Seong-hoon, head of Songpa-gu’s cleaning administration. “By using large water spraying trucks to remove fine dust and dirt from roadsides, we expect to contribute to a cleaner air environment.”
And the timing couldn’t be more critical. March is typically the month with the highest levels of fine particulate matter (PM2.5) in Seoul’s air. According to data from the Korea Meteorological Administration and the National Institute of Environmental Research, by March 27, 2026, Seoul had already experienced 15 days—more than half the month—with PM2.5 levels rated as ‘bad’ or worse. That’s 55.6% of the month, surpassing last year’s rate of 48.4%. The situation has been exacerbated by a lack of rain, frequent high-pressure systems, and the impact of a massive wildfire in Liaoning Province, China, earlier in March, which sent plumes of smoke drifting across the region.
But there’s hope that these cleaning efforts are making a real difference. A study by the Ministry of Environment and the Korea Environment Corporation, conducted between December 2022 and March 2023, found that cleaning 495 major roads across the country reduced concentrations of road re-suspended dust (PM10) by an average of 43.7%. According to a 2019 report from the Seoul Research Institute, road dust accounts for about 24% of the city’s total PM10 emissions. In other words, just keeping the streets clean can help manage roughly a quarter of Seoul’s fine dust problem—a statistic that’s hard to ignore.
These hands-on cleaning campaigns are only one piece of a much broader strategy. On March 27, 2026, Seoul’s Climate and Environment Headquarters rolled out its major work plans for the year, focusing squarely on sustainability and public health. The city’s agenda, as outlined in official documents, is ambitious: it aims to prohibit the direct landfill of household waste, promote a “waste diet” citizen project, and establish a culture that avoids single-use items. Plans are also in place to modernize recycling facilities and expand high-quality recycling, as well as to reduce food waste at its source and encourage citizen participation in these efforts.
The city isn’t stopping there. Expanding and safely operating metropolitan resource recovery facilities is on the docket, as is a suite of climate safety measures. These include mandatory building energy reporting and control systems, expanding the use of eco-friendly vehicles and charging infrastructure, and strengthening Seoul’s climate change response. Platforms like Eco Mileage will be promoted to foster citizen engagement, while support for climate tech industries and environmental education is set to increase. Regulatory reforms for environmental impact assessments are also being pursued to streamline progress.
Seoul’s renewable energy plans are equally robust, with commitments to expand geothermal, hydropower, and solar energy, and to ensure the safety and resilience of energy supply systems. Air quality improvement remains a top priority, with measures such as the early retirement of high-emission vehicles, accelerating the conversion of public transport and service vehicles to low-emission models, electrifying old construction equipment, and implementing special countermeasures during high-ozone periods.
Urban cleanliness and safety are not being overlooked. The city is investing in improving urban cleanliness and creating safe environments free from urban pollution. Importantly, there’s also a focus on improving the working conditions and welfare of environmental officers, recognizing the vital role they play in making all these plans a reality.
As Seoul faces another challenging spring, the city’s approach is clear: combine grassroots action with far-reaching policy. The goal isn’t just cleaner streets, but a healthier, more sustainable city for everyone who calls Seoul home. With thousands of citizens pitching in and a comprehensive strategy in place, the capital is making steady strides toward a brighter, cleaner future.