Notes on water-quality reconnaissance of Pine Mountain Area, Sespe Creek Basin, Ventura County, California

1973 ◽  
Author(s):  
Keyword(s):  
Water Quality ◽  
Mountain Area ◽  
Pine Mountain ◽  
Ventura County

scholarly journals Water Quality for Agricultural Irrigation and Aquatic Arsenic Health Risk in the Altay and Tianshan Mountains, Central Asia

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2270
Author(s):  
Wen Liu ◽  
Long Ma ◽  
Jilili Abuduwaili
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Major Ions ◽  
Carcinogenic Risk ◽  
Tianshan Mountain ◽  
Agricultural Irrigation ◽  
Mountain Area ◽  
Rock Interaction ◽  
River Waters ◽  
Altay Mountains

Due to a lack of water-quality studies compared with water-quantity studies, an investigation into the factors influencing the hydrochemical composition of the rivers in the Tianshan and Altay Mountains was conducted with a model of multiple linear regression, while the suitability of the water quality for irrigation and the health risks of arsenic (As) were assessed with classical evaluation methods. The results suggest that 44.0% of the water samples from the Altay Mountains fell into the Ca-HCO3 category type, 48.0% of the water samples were of the Ca-HCO3-Cl type, and the remaining samples belonged to the Ca-Na-HCO3-Cl type. In the Tianshan Mountain area, 58.6% of the water samples fell into the Ca-HCO3 hydrochemical category, 20.7% of the water samples were of the Ca-HCO3-Cl type, and 20.7% of the water samples belonged to the Ca-Na-HCO3-Cl type. The major ions in the water were dominated by the control of the water and rock interaction. The interaction between water and rock in the Altay area controlled 69.2% of the overall variance in the As content in the river waters, and it dominated 76.2% of the variance in the Tianshan region. The river waters in the Altay and Tianshan Mountain regions are suitable for agricultural irrigation with excellent-to-good water quality. The results also suggest that there is no non-carcinogenic risk and that the carcinogenic risk is between the acceptable/tolerable risk range of 10−6–10−4, except only one sample in Tianshan Mountain region. The research methodology provided a reference for revealing the potential sources of toxic element pollution, and the results provided a scientific basis for regional agricultural irrigation, as well as a reference for decision making on the environmental protection of the watershed.

Heterogeneity of water quality in Huai River, China by using bio-monitoring data

2013 ◽  
Vol 13 (6) ◽  
pp. 1524-1533 ◽  
Author(s):  
C. S. Zhao ◽  
C. M. Liu ◽  
Y. Sun ◽  
G. Yang ◽  
S. M. Mitrovic ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Resource Management ◽  
Pollution Level ◽  
Wet Season ◽  
Mountain Area ◽  
New Approach ◽  
Plain Area ◽  
Huai River ◽  
North Water ◽  
Bio Monitoring

A new approach by combining bioindicators (BiI) and biotic indices (BIs) for evaluating water quality is presented in this paper. It is then applied to the Huai River Basin (HRB), China, which is well-known globally for its heavy anthropogenic influences. Results indicate that the spatial distribution of BI-indicated water quality has roughly the same pattern as that shown by BiI, but the pollution level using BI was, on average, greater than that by BiI; the northern plain area has a degraded water quality (ranging from ‘α-mesosaprobic’ to ‘α-polysaprobic’ in a wet season) while the southern mountain area and the southern part of the East Line of the South–North Water Transfer Project has a better water quality (‘β-mesosaprobic’). Water quality is worse in the dry season than in the wet season. We concluded that zoobenthos and zooplankton are more reliable indicators of water quality; biological indices are more sensitive to water quality but less reliable than BiI. These results will be of use in the ecological restoration of the Huai River and benefit water resource management in HRB in the future.

Bedrock geologic map of the Pine Mountain-Oil Mountain area, Natrona County, Wyoming

1983 ◽  
Author(s):  
Eugene George Cserna ◽  
Gloria J. Kerns ◽  
William H. Laraway
Keyword(s):  
Mountain Area ◽  
Pine Mountain ◽  
Geologic Map ◽  
Natrona County

scholarly journals The Phytoplankton Biota Variation on the TimiȘ River According to the Chemistry And Hydrology of the Water Course

2013 ◽  
Vol 15 (3) ◽  
pp. 51-60
Author(s):  
Hanelore Muntean ◽  
Iuliana Dobai ◽  
Cătălin Milotin ◽  
Cristina Groza
Keyword(s):  
Water Quality ◽  
Catchment Area ◽  
High Water ◽  
Water Velocity ◽  
Biological Characteristics ◽  
Phytoplankton Composition ◽  
Mountain Area ◽  
Hydrological Data ◽  
River Hydrology ◽  
Qualitative Changes

ABSTRACT The Timiș River is the biggest tributary of the Banat catchment area. It springs at an elevation of 1145 m, under Piatra Goznei peak. Due to the fact that it crosses several relief forms, its hydrology, chemistry and biological characteristics are modified in consequence. The chemical and biological analysis of the water course and their correlation with hydrological data displayed evidence of the interdependence of these factors. The phytoplankton composition and richness are directly influenced by river’s chemistry and hydrology. In the mountain area, the flow and the speed of the watercourse are inducing a specific flora and fauna for the area. In the lower areas, the river hydrology triggers a change in the biological characteristics as the water chemistry changes. The mountain species are adapted to rocky substrata in order to resist high water velocity and pressure. In the lower areas they are replaced by lowland species adapted to larger yet slower flows. The Timiș River is a watercourse that did not undergo major qualitative changes in terms of water quality.

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