scholarly journals An Approach to Developing Numeric Water Quality Criteria for Coastal Waters Using the SeaWiFS Satellite Data Record

2012 ◽  
Vol 46 (2) ◽  
pp. 916-922 ◽  
Author(s):  
Blake A. Schaeffer ◽  
James D. Hagy ◽  
Robyn N. Conmy ◽  
John C. Lehrter ◽  
Richard P. Stumpf
Keyword(s):  
Water Quality ◽  
Satellite Data ◽  
Coastal Waters ◽  
Quality Criteria ◽  
Water Quality Criteria ◽  
Data Record

Dispersion of Sewage Wastes in Nearshore Coastal Waters: Applicability of Water Quality Criteria

1989 ◽  
Vol 21 (2) ◽  
pp. 77-81
Author(s):  
D. A. Lord ◽  
W. O. K. Grabow ◽  
M. J. Roberts
Keyword(s):  
Water Quality ◽  
Coastal Waters ◽  
Quality Criteria ◽  
Water Quality Criteria ◽  
The Absolute ◽  
Epidemiological Information

Deepwater outfalls can be satisfactorily designed to ensure rapid dilution of sewage wastes, and allow for conventional water quality criteria which prescribe low bacterial levels in areas used for recreational purposes and shellfish harvesting, to be achieved. However, surface shoreline discharges of similar wastes dissipate far less readily, and normally result in shoreline bacterial levels far in excess of desirable criteria. The absolute assessment of water quality in suspect areas should ideally also include viral counts as well as epidemiological information on infections of persons exposed to contaminated seawater or seafood.

Volume Analysis for Attainability of Water Quality Criteria for Three Loading Constituents

2004 ◽  
Author(s):  
Ping Wang ◽  
Lewis Linker ◽  
James Collier ◽  
Gary Shenk ◽  
Robert Koroncai ◽  
...  
Keyword(s):  
Water Quality ◽  
Quality Criteria ◽  
Water Quality Criteria ◽  
Volume Analysis

Developing Ambient Water Quality Criteria for Mercury: A Probabilistic Site-Specific Approach

2015 ◽  
Vol 2 (0) ◽  
pp. 9781780404028-9781780404028
Author(s):  
D. R. J. Moore ◽  
A. Pawlisz ◽  
R. Scott Teed
Keyword(s):  
Water Quality ◽  
Quality Criteria ◽  
Water Quality Criteria ◽  
Ambient Water ◽  
Site Specific ◽  
Specific Approach

scholarly journals Geochemical and biological controls on the ecological relevance of total, dissolved, and colloidal forms of trace elements in large boreal rivers: review and case studies

2020 ◽  
Vol 28 (2) ◽  
pp. 138-163
Author(s):  
C.W. Cuss ◽  
C.N. Glover ◽  
M.B. Javed ◽  
A. Nagel ◽  
W. Shotyk
Keyword(s):  
Water Quality ◽  
Trace Elements ◽  
Case Studies ◽  
Quality Criteria ◽  
Water Levels ◽  
Water Quality Criteria ◽  
Aquatic Life ◽  
Athabasca River ◽  
Biological Variables ◽  
Boreal Rivers

The concentrations of trace elements (TEs) in large boreal rivers can fluctuate markedly due to changing water levels and flow rates associated with spring melt and variable contributions from tributaries and groundwaters, themselves having different compositions. These fluctuating and frequently high concentrations create regulatory challenges for protecting aquatic life. For example, water quality criteria do not account for changes in flow regimes that can result in TE levels that may exceed regulatory limits, and neither do they account for the markedly different lability and bioaccessibility of suspended solids. This review addresses the geochemical and biological processes that govern the lability and bioaccessibility of TEs in boreal rivers, with an emphasis on the challenges posed by the colloidal behaviour of many TEs, and their relationship to the dissolved fraction (i.e., <0.45 μm in size). After reviewing the processes and dynamics that give rise to the forms and behaviour of TEs in large boreal rivers, their relevance for aquatic organisms and the associated relationships between size and lability and bioaccessibility are discussed. The importance of biological variables and different forms of TEs for limiting lability and bioaccessibility are also addressed. Two case studies emphasize seasonal fluctuations and accompanying changes in the distribution of TE amongst different size fractions and associated colloidal species in large boreal rivers: the Northern Dvina and one of its tributaries, the Pinega River, both in Russia, and the Athabasca River in Alberta, Canada. Water quality in the Athabasca River is briefly discussed with respect to Canadian guidelines.

Sign in / Sign up

Export Citation Format

Share Document