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- Title
The Nutrient and Heavy Metal Contents in Water of Tidal Creek of the Yellow River Delta, China: Spatial Variations, Pollution Statuses, and Ecological Risks.
- Authors
Qi, Yue; Zhao, Yilei; Fu, Gang; Li, Junsheng; Zhao, Caiyun; Guan, Xiao; Zhu, Shuyu
- Abstract
In order to understand the spatial distribution, ecological risks, and pollution status of nutrients and heavy metals in the coastal tidal creek water of the Yellow River Delta (YRD), a total of 21 water samples were collected from 7 sample sites. The results indicated that along the coastline from northwest to southeast in the YRD, the concentrations of TN, TP, and NH4+-N in the water decreased and then increased; the Cu concentration increased, decreased, and then increased; and the Pb concentration decreased. The average TN/TP mass ratio indicated that the tidal creek water belonged to a potential phosphorus-restricted eutrophication state. The RI result indicated that Cu and Pb in the water were at low ecological risk, while the SSD and RQ results indicated that Cu in the water was at a high ecological risk level and had potential harm to aquatic organisms. Based on the single-factor method, the water quality of the tidal creek inside and outside the Yellow River Delta Nature Reserve belonged to Grade IV. Cu should be controlled to improve the water quality and reduce the ecological risk, especially in the Yellow River Delta Nature Reserve.
- Subjects
CHINA; HEAVY metal content of water; TIDE-waters; ECOLOGICAL risk assessment; PHOSPHORUS in water; SPATIAL variation; WATER quality management; WATER quality
- Publication
Water (20734441), 2022, Vol 14, Issue 5, pN.PAG
- ISSN
2073-4441
- Publication type
Article
- DOI
10.3390/w14050713