Long-term spatiotemporal changes of 15 water-quality parameters in Japan: An exploratory analysis of countrywide data during 1982–2016

Chemosphere ◽  
2020 ◽  
Vol 242 ◽  
pp. 125245 ◽  
Author(s):  
Feng Ye ◽  
Satoshi Kameyama
Keyword(s):  
Water Quality ◽  
Quality Parameters ◽  
Exploratory Analysis ◽  
Water Quality Parameters ◽  
Spatiotemporal Changes

Patterns of long-term dynamics of aquatic communities and water quality parameters in the Great Lakes: Are they synchronized?

2018 ◽  
Vol 44 (4) ◽  
pp. 660-669 ◽  
Author(s):  
Katya E. Kovalenko ◽  
Euan D. Reavie ◽  
Richard P. Barbiero ◽  
Lyubov E. Burlakova ◽  
Alexander Y. Karatayev ◽  
...  
Keyword(s):  
Water Quality ◽  
Great Lakes ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Aquatic Communities

scholarly journals Recirculation anaesthesia for laboratory fish

1987 ◽  
Vol 21 (3) ◽  
pp. 210-215 ◽  
Author(s):  
L. A. Brown
Keyword(s):  
Water Quality ◽  
Surgical Procedures ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Ammonia Nitrogen ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Total Ammonia Nitrogen ◽  
Total Ammonia

An economic reliable long-term recirculation anaesthesia system for laboratory fish is described. Anaesthesia of channel catfish ( Ictalurus punctatus Rafinesque) was induced within 60 s and was maintained for up to 40 min using tricaine methanesulphonate; recovery occurred within 30-60 s. Various surgical procedures were performed on the fish. No deaths were recorded. All water-quality parameters tested over 19 days use of the system remained stable except for total ammonia nitrogen and, by calculation, un-ionized ammonia which increased to a maximum of 0·23 mg/1.

scholarly journals Impact of service line replacement on lead, cadmium, and other drinking water quality parameters in Flint, Michigan

2021 ◽  
Vol 7 (4) ◽  
pp. 797-808
Author(s):  
Nicole C. Rockey ◽  
Yun Shen ◽  
Sarah-Jane Haig ◽  
Madeleine Wax ◽  
James Yonts ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Quality Parameters ◽  
Drinking Water Quality ◽  
Water Quality Parameters ◽  
Service Line ◽  
Short And Long Term

This study elucidates the short- and long-term impacts of lead service line replacement in Flint homes following a corrosion event.

Analysis of variation and relation of climate, hydrology and water quality in the lower Mekong River

2010 ◽  
Vol 62 (7) ◽  
pp. 1587-1594 ◽  
Author(s):  
Pham Thi Minh Hanh ◽  
Nguyen Viet Anh ◽  
Dang The Ba ◽  
Suthipong Sthiannopkao ◽  
Kyoung-Woong Kim
Keyword(s):  
Water Quality ◽  
Arima Model ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Mekong River ◽  
Arima Models ◽  
Analysis Of Variation ◽  
Term Monitoring

In order to determine the influence of climate and hydrology on water quality of the lower Mekong River, the long term monitoring data (from 1985 to 2004) of climatic, hydrological and water quality variables were analyzed. In general, water quality was ‘good’ or ‘very good’ for most of the investigated water quality parameters including DO, pH, conductivity, nitrate, phosphate and total phosphorus. All climatic and hydrological elements as well as most of the water quality parameters varied seasonally. Throughout the 18-year period, only evaporation, water level and TSS showed a significant pertinent trend. ARIMA models results reveal that among climatic and hydrological paremeters, water quality could be effectively predicted from the data of discharge flow and precipitation. The results showed good R2 (≥0.7) estimation between predicted and observed values for TSS, alkalinity and conductivity which are the chemically and biologically conservative parameters. For other water quality parameters such as Ca2 + , Mg2 + , Si, Cl−, NO3−, and SO42−, the predicting results by ARIMA model were reliable in shorter period than the above three mentioned variables.

Long-term Variations of Water Quality Parameters in Lake Kyoungpo

2015 ◽  
Vol 48 (2) ◽  
pp. 95-107
Author(s):  
Sungjin Kwak ◽  
Bhattrai Bal Dev ◽  
Kwansoon Choi ◽  
Woomyung Heo
Keyword(s):  
Water Quality ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Long Term Variations
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