Report: Tibet's environmental quality shines

"Water quality in the region's key rivers — the Yarlung, Zangbo, Jinsha, Nujiang and Lancang — as well as the Lhasa Kyichu, Myangchu and Nyangchu, have met Class II and above standards," Shui said.

Water quality in the Rongbu River, which flows from Mount Qomolangma (Everest), meets the Class I standard, and all the region's 21 centralized water supply sources in six cities and one prefecture meet Class III standards, Shui added.