Main Title |
Low winter dissolved oxygen in some Alaskan rivers / |
Author |
Schallock, Eldor W., ;
Lotspeich., Frederick B.
|
Other Authors |
|
CORP Author |
Environmental Protection Agency, College, Alaska. Arctic Environmental Research Lab. |
Publisher |
National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency, |
Year Published |
1974 |
Report Number |
EPA-660/3-74-008; APA 1922; EPA-21ARX |
Stock Number |
PB-234 443 |
OCLC Number |
01034650 |
Subjects |
Rivers--Alaska--Cold weather conditions ;
Water--Dissolved oxygen
|
Additional Subjects |
Stream pollution ;
Alaska ;
Oxygen ;
Dissolved gases ;
Sampling ;
pH ;
Alkalinity ;
Conductivity ;
Temperature ;
Water quality ;
Winter ;
Chena River ;
Chatanika River ;
Salcha River ;
Yukon River ;
Dissolved oxygen ;
Water quality data
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 660-3-74-008 |
c.1 |
Headquarters Library/Washington,DC |
08/16/2013 |
ELBD ARCHIVE |
EPA 660-3-74-008 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD |
EPA 660-3-74-008 |
|
AWBERC Library/Cincinnati,OH |
04/25/1998 |
ESAD |
EPA 660-3-74-008 |
|
Region 10 Library/Seattle,WA |
10/12/2018 |
DISPERSAL |
ESAM |
EPA 600-3-74-008 |
|
Region 10 Library/Seattle,WA |
01/06/2020 |
DISPERSAL |
NTIS |
PB-234 443 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
v, 33 pages : illustrations, figures, tables ; 28 cm |
Abstract |
Water samples collected during the years 1969 through 1972, from 36 selected Alaskan rivers were analyzed for dissolved oxygen, pH, conductivity and alkalinity. Dissolved oxygen (D.O.) ranged from 0.0 to 15.3 ml/l (106 percent saturation); pH from 6.2 to 8.4; conductivity varied from 105 to 3000 (umho/cm); and alkalinity from 28 to 410 (mg/l). Severe D.O. depletion during winter was found in many river systems large and small, and located in a range of latitudes (70 degrees N to 61 degrees N). Sufficient data were collected on the Chena, Chatanika, and Salcha Rivers to reveal annual D.O. trends. The depressed winter D.O. concentrations and low winter discharge in many Alaskan rivers are more severe and widespread than present literature indicates. Winter conditions may already limit aquatic organisms in some systems. |
Notes |
"April 1974." "Prepared for National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency." Authors affiliated with Arctic Environmental Research Laboratory, College, Alaska. "Project 21ARX, Program Element 1BA021." Includes bibliographical references (pages 31-33). |