Spatio-temporal Water Quality Variations at Various Streams of Han-River Watershed and Empirical Models of Serial Impoundment Reservoirs

2012 ◽  
Vol 45 (4) ◽  
pp. 378-391 ◽  
Author(s):  
Kwang-Guk An ◽  
◽  
Hye-Won Jeon ◽  
Ji-Woong Choi
Keyword(s):  
Water Quality ◽  
Empirical Models ◽  
River Watershed ◽  
Han River ◽  
Spatio Temporal

scholarly journals Spatio-Temporal Distribution and Influencing Factors of Human and Veterinary Pharmaceuticals in the Tributary Surface Waters of the Han River Watershed, South Korea

2021 ◽  
Vol 18 (15) ◽  
pp. 7969
Author(s):  
Jong Kwon Im ◽  
Sang Hun Kim ◽  
Young Seok Kim ◽  
Soon Ju Yu
Keyword(s):  
Land Use ◽  
Rural Areas ◽  
Temporal Distribution ◽  
Point Sources ◽  
Veterinary Pharmaceuticals ◽  
River Watershed ◽  
Han River ◽  
Detection Frequency ◽  
Animal Populations ◽  
Spatio Temporal

Human and veterinary pharmaceuticals are being increasingly used for disease treatment; hence, their distribution and factors influencing them in the aquatic environment need to be investigated. This study observed the effect of human and animal populations, usage, purchasing criteria (prescription vs. non-prescription), and land use to identify the spatio-temporal distribution of eight pharmaceuticals at twenty-four sites of the tributaries of the Han River watershed. In rural areas, the mean concentration (detection frequency) of non-prescription pharmaceuticals (NPPs) was higher (lower) compared to that of prescription pharmaceuticals (PPs); in urban areas, a reverse trend was observed. Pharmaceutical concentrations in urban and rural areas were mainly affected by wastewater treatment plants (WWTPs) and non-point sources, respectively; concentrations were higher downstream (4.9 times) than upstream of the WWTPs. The concentration distribution (according to the target) was as follows: human–veterinary > human > veterinary. Correlation between total concentration and total usage of the pharmaceuticals was high, except for NPPs. Most livestock and land use (except cropland) were significantly positively correlated with pharmaceutical concentrations. Concentrations were mainly higher (1.5 times) during cold seasons than during warm seasons. The results of this study can assist policymakers in managing pharmaceutical pollutants while prioritizing emerging pollutants.

scholarly journals Assessment of the Willingness to Pay for Forest Management in the Upstream for Water Quality Improvement within the Han River Watershed

2015 ◽  
Vol 14 (2) ◽  
pp. 49-72
Author(s):  
김동현 ◽  
전현선 ◽  
박경석 ◽  
문지민 ◽  
김철상 ◽  
...  
Keyword(s):  
Water Quality ◽  
Quality Improvement ◽  
Forest Management ◽  
Willingness To Pay ◽  
Water Quality Improvement ◽  
River Watershed ◽  
Han River

scholarly journals Spatio-Temporal Analysis of Water Quality Parameters in Machángara River with Nonuniform Interpolation Methods

Water ◽  
2016 ◽  
Vol 8 (11) ◽  
pp. 507 ◽  
Author(s):  
Iván Vizcaíno ◽  
Enrique Carrera ◽  
Margarita Sanromán-Junquera ◽  
Sergio Muñoz-Romero ◽  
José Luis Rojo-Álvarez ◽  
...  
Keyword(s):  
Water Quality ◽  
Temporal Analysis ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Interpolation Methods ◽  
Spatio Temporal

Spatio‐temporal dynamics of water quality and eutrophication in Lake Taihu, China

Ecohydrology ◽  
2021 ◽  
Author(s):  
Qiongfang Li ◽  
Yuting Zhu ◽  
Qihui Chen ◽  
Yu Li ◽  
Jing Chen ◽  
...  
Keyword(s):  
Water Quality ◽  
Temporal Dynamics ◽  
Lake Taihu ◽  
Spatio Temporal

Spatio-temporal changes in water quality in the Guarapiranga reservoir (São Paulo, Brazil): insights from a long-term monitoring data series

2021 ◽  
Vol 193 (7) ◽  
Author(s):  
Décio Semensatto ◽  
Geórgia Labuto ◽  
Stéfano Zorzal-Almeida ◽  
Douglas V. McRae
Keyword(s):  
Water Quality ◽  
Temporal Changes ◽  
Sao Paulo ◽  
Monitoring Data ◽  
Data Series ◽  
Long Term Monitoring ◽  
Spatio Temporal ◽  
Guarapiranga Reservoir ◽  
Term Monitoring

scholarly journals Evaluation of Water Quality and Habitat Quality in the Beiyunhe River Watershed

2021 ◽  
Vol 638 (1) ◽  
pp. 012091
Author(s):  
Jiaxiang Zou ◽  
Shiyan Wang ◽  
Chang Liu ◽  
Zhen Han ◽  
Bei Zhu ◽  
...  
Keyword(s):  
Water Quality ◽  
Habitat Quality ◽  
River Watershed
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