Seriously polluted along its entire length, in 2007 the Ying River's water quality was rated as below Grade 5 by the Chinese Environmental Protection Agency.[4]
Tributaries
The Sha River (沙河) is the largest tributary and from the confluence onward, the Ying River is often referred to as the Shaying River (沙颍河).[3]
^辞海第六版 Cihai Ed. 6. (in Chinese) Shanghai. 2009. pp. 2754. "颍河(...)长557千米" (translation: Ying River(...)is 557 km long)
^Jing,Zhengshu (2012). Encyclopedia of Rivers and Lakes in China (Huaihe River Basin Volume) (M) (in Chinese) (1 ed.). Beijing: China Water Conservancy and Hydropower Press. p. 289. ISBN 978-7517005636.
^ a b"Anhui Water Conservancy Bureau: Huai River Drainage System – Ying River (安徽省水利廳. 淮河水系-潁河.)" (in Chinese). Anhui Water Conservatory Portal (安徽水利信息網). December 22, 2008. Retrieved February 5, 2012.
^"Grade Five Polluted Ying River Covered with White Foam (潁河全線水質劣五類 河面被白色泡沫覆蓋)" (in Chinese). ChinaFotoPress. March 11, 2007. Retrieved February 6, 2012.