A brown-eared bulbul pecks at Japanese cornelian cherries, or "sansuyu" in Korean, as yellow flowers of a snow-covered sansuyu tree bloom on Mount Paldal in Suwon, south of Seoul, on March 18, 2025

An electronic signboard near City Hall in Suwon, south of Seoul, shows the atmospheric level of PM10, harmful particles that are smaller than 10 microns in diameter, is forecast to remain "bad," wi

A man wearing a mask walks on a street blanketed in haze in Seoul's Jongno Ward on March 13, 2025, as the atmospheric levels of PM10, harmful particles that are smaller than 10 micrometers in diame

Hanoi, January 29 (VNA) – Hanoi authorities are under significant pressure to improve air quality, particularly as the city rotates in and out of the top global ranking for air pollution levels, de