Vietnamese Cities Among Asia's Most Polluted, Hanoi Ranks Seventh Globally

Three Vietnamese cities rank among 100 most polluted in Asia

Thai Nguyen, Bac Ninh and Van Giang placed among the 100 most polluted cities across Asia in 2025, while Hanoi was named the seventh most polluted capital city in the world with fine dust concentration more than nine times the safe level set by the World Health Organization, a new report has found.