The trend of Qiandao Lake's transformation from mid mesotrophic to mesotrophic, the polluting elements are heavy metals, nitrogen, phosphorus and organic matter, cages and cruise ships; (up to 10 meters underwater) the temperature changes greatly, with an average of 28.2 °C-24.4 °C, and the water temperature is mostly maintained at a relatively high temperature, called the warm water layer, which is greatly affected by floods.

Spanning an area that nearly matches the size of Singapore and renown for having clear waters, Qiandao Lake hosts a major fishery and aquaculture industry.

[4] Due to its still waters, the lake is stocked with 30,000 sturgeons, a species that is native to Russia and Central Asia, which are bred to produce caviar for the Kaluga Queen label.

[5][6] The valley was flooded in 1959 to create the lake for the Xin'an River Dam project.

[10][11] In 1998, a Chinese-Italian consortium began planning the construction of a prototype of a submerged floating tunnel (also known as an Archimedes bridge), and decided in 2005 to build it across Qiandao Lake.

Kaluga Queen produces much of the world's caviar through raising sturgeon in pens at the lake.

Every half an hour buses leave from West Hangzhou bus station to that connect Qiandao Lake.