Water Quality and Algal Data for the North Umpqua River Basin, Oregon, 2005

Data Series ◽  
10.3133/ds229 ◽  
2006 ◽  
Author(s):  
Dwight Q. Tanner ◽  
Andrew J. Arnsberg ◽  
Chauncey W. Anderson ◽  
Kurt D. Carpenter
Keyword(s):  
Water Quality ◽  
River Basin ◽  
The North

scholarly journals Estimation Of Water Quality Using Geomatics Techniques for The Garraf River Basin

2022 ◽  
Vol 961 (1) ◽  
pp. 012077
Author(s):  
Jaafar Naji Daoud Al-Shuwaili ◽  
Hussein Musa Al-Shamri
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
River Basin ◽  
Statistical Relationship ◽  
Band Ratio ◽  
Correlation Relationship ◽  
Positioning Systems ◽  
The North ◽  
A Value ◽  
Statistical Relationships

Abstract This study was conducted for the purpose of estimating the soil and water quality of the Gharraf River Basin in the north of Dhi Qar Governorate using geomatics techniques represented by geographic information systems (GIS), remote sensing (RS) and positioning systems (GNSS). Which is about (90 km) from the city center. The chemical analyzes of the water samples showed that the degree of interaction was between (7.84-7.7) and the electrical conductivity (dS.m¯1.1-1.05), and the total dissolved substances were between (1106-1051ppm), and the mathematical statistical relationships were weakly correlated with the ratios of the visible space bands. pH, electrical conductivity and total dissolved materials. Calcium ratios in the study area ranged between (ppm 47.4-107) and there was a significant correlation with the range (B/R + B) with a value of (R2 = 0.51), and the results showed the ratios of magnesium in the study area between (ppm 9.67 - 26.61.) Between it and the band ratio (B/R + B)), a correlation relationship with a value of (R2=0.525), potassium recorded an average between (3.1-ppm 5.5), and there was a significant correlation between it and the band ratio (B/R +R) and it reached (R2=0.665). ), found a statistical relationship between sodium and the ratio of the band (B/R + R)) and a significant correlation was recorded with a value of (R2 = 0.527). - 102.52) And there was a correlation between the presence of chloride and the ratio of the range (B/NIR + G) as it was recorded (R2 = 0.593), the bicarbonate recorded ratios between (ppm 1.8-2.7), and there was a statistical relationship between the bicarbonate and the ratio of the range (C / R). ) amounted to (R2 = 0.573), nitrate values were recorded in the study area between (4 - 3.45 ppm) and there was a significant correlation between them and the range (B5) as it reached (R2 = 0.581), sulfate values were recorded between (207.25 - 277.5 ppm) and through Statistical analysis found that there is a correlation between The presence of sulfate with the ratio (C + B + G + R + NIR) which amounted to (R2 = 0.596), the sodium adsorption ratio (SAR) was calculated, as its values ranged between (3.192 - 0.147) and most of the statistical relationships were weakly related to the spatial ratios and were gradually The hardness values in the study area are between (99.7 - 198.1)(

scholarly journals Macroinvertebrates community structure and water quality assessment in the North Canal River Basin, Beijing, China

2017 ◽  
Vol 29 (6) ◽  
pp. 1444-1454
Author(s):  
GU Xiaoyun ◽  
◽  
XU Zongxue ◽  
WANG Mi ◽  
YIN Xuwang ◽  
...  
Keyword(s):  
Water Quality ◽  
Community Structure ◽  
Quality Assessment ◽  
River Basin ◽  
Water Quality Assessment ◽  
The North ◽  
Beijing China

scholarly journals Water-quality in the North Santiam River basin, Oregon-Comparison of water-quality data for water year 2007 with the preceding period of record

2011 ◽  
Author(s):  
David R. Piatt ◽  
Matthew W. Johnston ◽  
Heather M. Bragg ◽  
Amy M. Brooks ◽  
Steven Sobieszczyk ◽  
...  
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Quality Data ◽  
Water Quality Data ◽  
The North ◽  
Preceding Period

scholarly journals Distribution of Water Quality in the Sasar River Basin According to the EPT (Ephemeroptera, Plecoptera, Trichoptera) Zoobenthos Bioindicators

2011 ◽  
Vol 68 (2) ◽  
Author(s):  
Oana MARE ROSCA ◽  
Lucia MIHALESCU ◽  
Aurel MAXIM ◽  
Zorica VOSGAN ◽  
Monica MARIAN
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Hydrographic Basin ◽  
The North ◽  
Total View ◽  
Baia Mare ◽  
Basin Water ◽  
The City ◽  
North Western

The hydrographic basin of the Sasar River is located in the north-western part of Romania, a highly industrialized region until 2000, its main point being the city of Baia Mare. Here the main pollutant economic fields were mining and metallurgy. Thus, pollution affected all life environments of this region, including the health of the population. This paper presents the assessment of the ecologic status of the Sasar River Basin water quality. Thus, the zoobenthic communities of the Sasar River and its main tributaries were monitored for 4 years, twice a year, during 2004-2008. The analysis of the quality zoobenthic indices offers a total view about the ecologic status of a watercourse. From the multitude of bioindicator groups, the taxons belonging to the EPT (EPHEMEROPTERA, PLECOPTERA, TRICHOPTERA) communities were chosen, due to their implied ecologic relevance. The maximum number of the taxons belonging to the EPT communities were recorded for the Valea Măriuţii station (28), followed by the Valea Limpedea station (24), and the minimum EPT taxons were recorded for the stations of Valea Firiza (1), upstream from Baia Mare (1) and downstream from Baia Mare (1).The distribution of the saprobity degree of the analyzed EPT bioindicators is as it follows: 32 oligo-saprobic individuals (26,44%), 18 oligo-beta-mezosaprobic individuals (14,87%), 39 beta-mezosaprobic individuals (32,23%) and 2 beta-alfa-mezosaprobic individuals (1,65%).

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