River-quality assessment of the Truckee and Carson River system, California and Nevada; hydrologic characteristics

1986 ◽  
Author(s):  
W. M. Brown ◽  
J.O. Nowlin ◽  
L.H. Smith ◽  
M.R. Flint
Keyword(s):  
Quality Assessment ◽  
River System ◽  
River Quality ◽  
Carson River

Planning and design of studies for river-quality assessment in the Truckee and Carson River basins, California and Nevada

1980 ◽  
Author(s):  
Jon O. Nowlin ◽  
W.M. Brown ◽  
L.H. Smith ◽  
R.J. Hoffman
Keyword(s):  
Quality Assessment ◽  
River Basins ◽  
Planning And Design ◽  
River Quality ◽  
Carson River

River Quality Models for Consent Setting in England and Wales

1989 ◽  
Vol 21 (8-9) ◽  
pp. 1015-1024 ◽  
Author(s):  
C. P. Crockett ◽  
R. W. Crabtree ◽  
I. D. Cluckie
Keyword(s):  
River System ◽  
Quality Model ◽  
Catchment Scale ◽  
Quality Models ◽  
England And Wales ◽  
Future Developments ◽  
Statistical Framework ◽  
River Quality ◽  
National Approach

In England and Wales the placing of effluent discharge consents within a statistical framework has led to the development of a new hybrid type of river quality model. Such catchment scale consent models have a stochastic component for the generation of model inputs and a deterministic component to route them through the river system. This paper reviews and compares the existing approaches for consent modelling used by various Water Authorities. A number of possible future developments are suggested including the potential need for a national approach to the review and setting of long term consents.

Sprat – A Simple River Quality Impact Model for Intermittent Discharges

1989 ◽  
Vol 21 (12) ◽  
pp. 1793-1796
Author(s):  
C. P. Crockett ◽  
R. W. Crabtree ◽  
H. R. Markland
Keyword(s):  
Plug Flow ◽  
River System ◽  
Response Assessment ◽  
River Basin Management ◽  
Impact Model ◽  
Basin Management ◽  
Potential Accuracy ◽  
North West ◽  
River Quality ◽  
Receiving Waters

The detrimental influence of storm sewer overflows on urban river quality has been widely recognised for many years. One objective of the WRc River Basin Management programme is the development of a river impact model capable of predicting the transient quality changes in receiving waters due to intermittent storm sewage discharges. The production of SPRAT (Spill Pollution Response Assessment Technique) is the first step in the development of such a model. SPRAT incorporates a number of significant simplifications, most notably plug flow and instantaneous mixing, and does not implicitly take into account the effects of dispersion. These simplifications reflect the large errors associated with the model inputs. These errors severely limit the potential accuracy of any river impact model. The model has been applied to the Bolton river system in North West England. The development and application of SPRAT has enabled the requirements for a more sophisticated river quality impact model to be clearly defined, in addition to highlighting the problems associated with gathering suitable data with which to build and calibrate such a model.

scholarly journals A practical framework for river-quality assessment

Circular ◽  
1975 ◽  
Author(s):  
David A. Rickert ◽  
Walter G. Hines
Keyword(s):  
Quality Assessment ◽  
River Quality

Levels of methylmercury and controlling factors in surface sediments of the Carson River system, Nevada

1996 ◽  
Vol 92 (3) ◽  
pp. 281-287 ◽  
Author(s):  
Y. Chen ◽  
J.C. Bonzongo ◽  
G.C. Miller
Keyword(s):  
Surface Sediments ◽  
River System ◽  
Controlling Factors ◽  
Carson River

The use of benthic macroinvertebrate families for river quality assessment in Lithuania

2012 ◽  
Vol 7 (4) ◽  
pp. 741-758 ◽  
Author(s):  
Giedrė Višinskienė ◽  
Rasa Bernotienė
Keyword(s):  
Quality Assessment ◽  
Ecological Status ◽  
Estimation Method ◽  
Environmental Parameters ◽  
Biotic Index ◽  
Benthic Macroinvertebrate ◽  
Accurate Estimation ◽  
Macroinvertebrate Communities ◽  
River Quality ◽  
Lithuanian Rivers

AbstractThe aim of this study was to evaluate the influence of environmental factors on the distribution of macroinvertebrate taxa in different sized lowland Lithuanian rivers. A secondary aim was to assess ecological river quality and to determine the most suitable biotic index. A final aim was to determine the most appropriate macroinvertebrate families for river quality assessment in Lithuania. Species composition and quantitative characteristics of benthic macroinvertebrate communities have been investigated using standard kick-sampling method by a standard hand net in 24 different river sites in spring. Physical and chemical environmental parameters were measured in the same study site as the macroinvertebrate sampling. A total of 186 taxa representing 66 families or higher taxonomic ranks of benthic macroinvertebrates have been identified. Water temperature and current velocity influenced the highest number of ivestigated families. Seven of the most tolerant and eleven of the most sensitive macroinvertebrate taxa for hydrochemical parameters related with organic pollution were determined. The DSFI method was founded to be the best index for assessment of ecological status for Lithuanian rivers until more accurate estimation method will be created.

scholarly journals Application of Diatom-Based Indices in River Quality Assessment: A Case Study of Lower Ogun River (Abeokuta, Southwestern Nigeria) Using Epilithic Diatoms

2019 ◽  
Author(s):  
Adewole Michael Gbadebo ◽  
Benjamin Onozeyi Dimowo ◽  
Adewale Matthew Taiwo ◽  
Isaac Tunde Omoniyi
Keyword(s):  
Quality Assessment ◽  
Southwestern Nigeria ◽  
Epilithic Diatoms ◽  
River Quality ◽  
Ogun River
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