HANOI: A thick blanket of smog has settled over Vietnam's capital Hanoi in recent days, blurring high-rise buildings and casting a gray haze across streets as fine particulate matter continues to rise to unhealthy levels.
According to the global air-quality monitoring platform IQAir, the city recorded several consecutive days with fine particulate matter, known as PM2.5, reaching the "unhealthy" range over the past month.
