HANOI, May 16 (Xinhua) — Hot temperatures start to build this week for much of Vietnam with levels of ultraviolet (UV) radiation forecast to reach “dangerous” levels, Vietnam News reported on Tuesday.
Levels of UV radiation in major cities across the country are expected to peak between 8 and 10 on a scale that according to experts, level 10.5 and above is regarded as “extreme”, said the National Centre for Hyd