Combing δ¹⁵N and δ¹⁸O to identify the distribution and the potential sources of nitrate in human-impacted watersheds, Shandong, China.

ABSTRACT: Identifying the anthropogenic and natural sources of nitrate emissions contributing to surface water continues to be an enormous challenge. It is necessary to control the water quality in the watershed impacted by human disturbance. In this study, water chemical parameters including nitrate (NO₃ ^-) concentrations, δ¹⁵N-NO₃ ^-, δ¹⁸O-NO₃ ^-, and δ¹⁸O-H₂O were analyzed to investigate the contamination and sources of NO₃ ^- in two watershed rivers (Jinyun, JYN and Jinyang, JYA), Jinan, Shandong, China. Results indicated NO₃ ^- concentrations in the JYN were significantly higher than those in the JYA (P < 0.05), probably because of high N i

SUBMITTER: Yang B 

PROVIDER: S-EPMC9081639 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature