Contamination and Ecological Risk Assessment of Heavy Metals in Surface Sediments of Huangshui River, Northwest China

Table 1

Description of sampling points in the Huangshui River.

Sample number	Latitude	Longitude	Sampling position
S1	36°39′12″ N	101°40′35″ E	Xining Special Steel Park
S2	36°39′15″ N	101°42′6 E	Haihu Wetland Park
S3	36°39′11″ N	101°43′1″ E	Western Suburb Park
S4	36°38′57″ N	101°43′2″ E	Haihu Middle School
S5	36°39′7″ N	101°44′2″ E	Culture Park
S6	36°38′27″ N	101°45′27″ E	People’s Park
S7	36°38′12″ N	101°46′10″ E	Local Police Station of Qilian road
S9	36°′42″ N	101°47′40″ E	Morning Market of Wuyi road
S11	36°36′22″ N	101°48′57″ E	Lianhe Village Mosque
S12	36°36′3″ N	101°49′32″ E	Huangzhong Road
S13	36°35′25″ N	101°50′2″ E	Bridge of Minhe Road
S14	36°34′56″ N	101°50′22″ E	Jingxifeng Wetland Park
S15	36°34′23″ N	101°51′56″ E	Tuanjieqiao Market
S16	36°34′3″ N	101°52′41″ E	Ninghu Wetland Park