WQMS: water quality monitoring station for IoT

2021 ◽  
Vol 35 (2) ◽  
pp. 79
Author(s):  
Sergio Diaz ◽  
Andres Molano ◽  
Christian Erazo ◽  
Juan C. Monroy
Keyword(s):  
Water Quality ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Monitoring Station

Development of on-site fish exposure system placed in water quality monitoring stations along a river

2005 ◽  
Vol 52 (12) ◽  
pp. 275-282 ◽  
Author(s):  
T. Higashitani ◽  
K. Miyajima ◽  
N. Nakada ◽  
M. Yasojima ◽  
H. Tanaka ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
Estrogenic Activity ◽  
Sewage Treatment ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Monitoring Station ◽  
Exposure System ◽  
Fish Exposure ◽  
Monitoring Stations

Estrogen-like substances have been suspected to cause feminization of wild fish in rivers in Japan. To elucidate the influence of estrogen-like substances on fish in river, we have started to develop the on-site continuous fish exposure system using medaka Oryzias latipes that were placed in water quality monitoring stations along a river. Adult male medaka were exposed to the river water in a glass exposure tank placed in the monitoring stations. Flow rate of water and water temperature were controlled at 30L/hour and 26°C respectively, and a light: dark cycle was maintained 16:8 hours. A commercial diet free from phyto-estrogens was fed 4 times in a day using automatic feeder. After 2-week exposure, hepatic vitellogenin concentration of each male medaka was measured. The exposure tests were repeatedly performed at both the upstream and the downstream of sewage treatment plants along the River Tama which is a representative urbanized river in Japan. At the control site Haijimabashi monitoring station, vitellogenin was not detected in male medaka. On the other hand, at the Ishihara monitoring station which is the most downstream in this test area, every male medaka were produced vitellogenin in the test performed in the spring of 2004. As the results of the water quality analysis, it could be inferred that the estrone derived from effluents of sewage treatment plants caused the feminization of male medaka. The reason why the concentrations of the estrone and the estrogenic activity using DNA recombinant yeast varied in proportion to the electric conductivity of river water measured at the water quality monitoring station. Furthermore, after continuous 2-week exposure, the vitellogenin production of male medaka was reduced similar to the decrease of the concentrations of the estrone and the estrogenic activity of river water.

WQMS: water quality monitoring station for IoT

2021 ◽  
Vol 35 (2) ◽  
pp. 79
Author(s):  
Andres Molano ◽  
Juan C. Monroy ◽  
Christian Erazo ◽  
Sergio Diaz
Keyword(s):  
Water Quality ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Monitoring Station

A Bioassay System for Water-Quality Monitoring Using a Small Fish

2013 ◽  
Vol 133 (8) ◽  
pp. 1616-1624
Author(s):  
Zu Soh ◽  
Kentaro Miyamoto ◽  
Akira Hirano ◽  
Toshio Tsuji
Keyword(s):  
Water Quality ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Small Fish ◽  
Bioassay System

Design, Certification, and Deployment of the Colorimetric Water Quality Monitoring Kit (CWQMK)

2010 ◽  
Author(s):  
Daniel Gazda ◽  
Daniel Nolan ◽  
Jeff Rutz ◽  
John Schultz ◽  
Lorraine Siperko ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Quality Monitoring ◽  
Quality Monitoring

DEVELOPMENT OF A MULTIPARAMETRIC QUALITY INDEX FOR WATER QUALITY MONITORING

2016 ◽  
Vol 15 (5) ◽  
pp. 1069-1074 ◽  
Author(s):  
Violeta-Monica Radu ◽  
Alexandru Anton Ivanov ◽  
Petra Ionescu ◽  
Gyorgy Deak ◽  
Marian Tudor
Keyword(s):  
Water Quality ◽  
Quality Index ◽  
Water Quality Monitoring ◽  
Quality Monitoring
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