PMID- 37683374 OWN - NLM STAT- MEDLINE DCOM- 20231023 LR - 20231026 IS - 1873-6009 (Electronic) IS - 0169-7722 (Linking) VI - 258 DP - 2023 Sep TI - Spatiotemporal distribution and controlling factors on ammonium in waters in the central Yangtze River Basin, China. PG - 104239 LID - S0169-7722(23)00109-2 [pii] LID - 10.1016/j.jconhyd.2023.104239 [doi] AB - High levels of ammonium in water can compromise the ecological environment and be harmful to human beings. It is of great significance to understand the source and controlling factors of ammonium in waters. However, the distribution and controlling factors on ammonium in the central Yangtze River Basin have been rarely reported. The results showed that 6.58% of the surface water (SW) exceeded the China national guideline of category III for NH(4)(+)-N (i.e., 1.0 mg/L) and 30.19% of the groundwater (GW) exceeded the China national guideline of category III for NH(4)(+)-N (i.e., 0.5 mg/L). Notably, the ammonium concentrations of the plain area in the middle were much higher, which reached to the highest value at the junction of the Yangtze River and Dongting Lake. Nitrogen in SW may originate from manure but more nitrogen sources in GW. The net anthropogenic nitrogen input (NANI) can provide enough organic nitrogen for the mineralization. NH(4)(+)-N in SW was more affected by fertilizer nitrogen and feed nitrogen input but more affected by agricultural nitrogen fixation in GW. Agricultural and industrial activities controlled NH(4)(+)-N in SW and GW by increasing nitrogen input and changing hydrological conditions. In general, this research exposed the controlling of different types of factors on ammonium in waters, providing a guidance for the water pollution prevention in study area. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Hu, Meiyan AU - Hu M AD - School of Resource and Environmental Science, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Eco-environment Technology R&D and Service Center, Wuhan University, Wuhan 430079, PR China. Electronic address: 2018102050023@whu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230903 PL - Netherlands TA - J Contam Hydrol JT - Journal of contaminant hydrology JID - 8805644 RN - 0 (Ammonium Compounds) RN - 0 (Water Pollutants, Chemical) RN - 0 (Nitrates) RN - N762921K75 (Nitrogen) RN - 059QF0KO0R (Water) SB - IM MH - Humans MH - Rivers MH - *Ammonium Compounds MH - Environmental Monitoring MH - *Water Pollutants, Chemical/analysis MH - Nitrates/analysis MH - Nitrogen/analysis MH - *Groundwater MH - China MH - Water OTO - NOTNLM OT - Ammonium OT - Anthropogenic activities OT - Environmental conditions OT - Groundwater OT - Surface water OT - Yangtze River Basin COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/09/08 18:42 MHDA- 2023/10/23 12:42 CRDT- 2023/09/08 18:03 PHST- 2023/04/07 00:00 [received] PHST- 2023/08/04 00:00 [revised] PHST- 2023/08/29 00:00 [accepted] PHST- 2023/10/23 12:42 [medline] PHST- 2023/09/08 18:42 [pubmed] PHST- 2023/09/08 18:03 [entrez] AID - S0169-7722(23)00109-2 [pii] AID - 10.1016/j.jconhyd.2023.104239 [doi] PST - ppublish SO - J Contam Hydrol. 2023 Sep;258:104239. doi: 10.1016/j.jconhyd.2023.104239. Epub 2023 Sep 3.