PMID- 32006328
OWN - NLM
STAT- MEDLINE
DCOM- 20200710
LR  - 20210110
IS  - 1614-7499 (Electronic)
IS  - 0944-1344 (Linking)
VI  - 27
IP  - 11
DP  - 2020 Apr
TI  - Exploration of the critical factors influencing the water quality in two 
      contrasting climatic regions.
PG  - 12601-12612
LID - 10.1007/s11356-020-07786-5 [doi]
AB  - Over the past few decades, rivers have become severely polluted as a result of 
      receiving vast quantities of domestic and industrial wastewater. The 
      identification of the major factors that influence water quality is crucial to 
      understand the interactions of anthropogenic and natural factors and develop 
      river restoration projects. In this study, the QUAL2Kw water quality model was 
      used to quantitatively evaluate the most critical factors for water quality at 
      two sites with different meteorological conditions and urban scales. The genetic 
      algorithm (GA) was used to optimize the parameters in the model. The Monte Carlo 
      simulation (MCS) method was used to assess the model uncertainty and sensitivity 
      in all reaches for five water quality outputs (temperature, CBOD, DO, TP, and TN) 
      in two seasons. The K-means clustering method associated with the sensitivity 
      results was used to identify the major factors influencing the water quality in 
      all reaches from the input data and the model parameters. The results showed that 
      CBOD, TN, and TP were most sensitive to headwater and tributary quality. DO 
      tended to be affected by more natural reactions than the other water quality 
      indicators. In the cold and dry seasons and the more urbanized areas, river 
      pollution was more severe, and the impact of natural reactions was reduced. The 
      simulation results revealed the reliability of QUAL2Kw in modeling the quantity 
      and quality of all river reaches. The method applied in this study is beneficial 
      for the improvement and management of the water environment.
FAU - Kang, Gelin
AU  - Kang G
AD  - Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media 
      Pollution, College of Environmental Science and Engineering, Nankai University, 
      Tianjin, 300350, China.
FAU - Qiu, Yu
AU  - Qiu Y
AD  - Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media 
      Pollution, College of Environmental Science and Engineering, Nankai University, 
      Tianjin, 300350, China.
FAU - Wang, Qingxiu
AU  - Wang Q
AD  - Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media 
      Pollution, College of Environmental Science and Engineering, Nankai University, 
      Tianjin, 300350, China.
FAU - Qi, Zuoda
AU  - Qi Z
AD  - Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media 
      Pollution, College of Environmental Science and Engineering, Nankai University, 
      Tianjin, 300350, China.
FAU - Sun, Yuting
AU  - Sun Y
AD  - Khoury College of Computer Sciences, Northeastern University, San Jose, CA, 
      95138, USA.
FAU - Wang, Yuqiu
AU  - Wang Y
AUID- ORCID: 0000-0002-2790-4689
AD  - Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media 
      Pollution, College of Environmental Science and Engineering, Nankai University, 
      Tianjin, 300350, China. yqwang@nankai.edu.cn.
LA  - eng
GR  - HZCG2017Z159/Environment Monitoring Station of Huangshan City/
GR  - 2016A008/Chinese Academy for Environmental Planning/
PT  - Journal Article
DEP - 20200131
PL  - Germany
TA  - Environ Sci Pollut Res Int
JT  - Environmental science and pollution research international
JID - 9441769
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - China
MH  - Environmental Monitoring
MH  - Monte Carlo Method
MH  - Reproducibility of Results
MH  - Rivers
MH  - Seasons
MH  - Water Pollutants, Chemical/*analysis
MH  - *Water Quality
OTO - NOTNLM
OT  - Influencing factors
OT  - QUAL2Kw
OT  - Sensitivity analysis
OT  - Water quality
EDAT- 2020/02/02 06:00
MHDA- 2020/07/11 06:00
CRDT- 2020/02/02 06:00
PHST- 2019/07/31 00:00 [received]
PHST- 2020/01/21 00:00 [accepted]
PHST- 2020/02/02 06:00 [pubmed]
PHST- 2020/07/11 06:00 [medline]
PHST- 2020/02/02 06:00 [entrez]
AID - 10.1007/s11356-020-07786-5 [pii]
AID - 10.1007/s11356-020-07786-5 [doi]
PST - ppublish
SO  - Environ Sci Pollut Res Int. 2020 Apr;27(11):12601-12612. doi: 
      10.1007/s11356-020-07786-5. Epub 2020 Jan 31.