Funding for this research was provided by:
National Natural Science Foundation of China (18JCZDJC39500)
Article History
Received: 6 February 2020
Accepted: 25 May 2020
First Online: 15 June 2020
Compliance with ethical standards
: The sampling procedures were conducted in accordance with the “technical specifications requirements for monitoring of surface water and wastewater” issued by the China’s State Environmental Protection Administration (HJ-T91-2002).