Main Title |
Effects of Acid Perturbation on a Controlled Ecosystem. |
Author |
Kollig, Heinz P. ;
Hall, Tom L. ;
|
CORP Author |
Environmental Research Lab., Athens, GA. |
Year Published |
1981 |
Report Number |
EPA-600/J-81-357; |
Stock Number |
PB82-206004 |
Additional Subjects |
Acidity ;
Algae ;
Water pollution ;
Hydrochloric acid ;
Alkalinity ;
Calcium carbonates ;
Coal ;
Nutrients ;
Oxygen ;
Stresses ;
Degradation ;
Bacteria ;
Marine microorganisms ;
Environmental impacts ;
Fossil fuels ;
pH ;
Carbon dioxide ;
Buffers(Chemistry) ;
Phthalates ;
Reprints ;
Microcosms ;
Ecosystems ;
Phthalic acid/(diethyl-ester)
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB82-206004 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
11p |
Abstract |
Duplicate, 8-compartment, continuous-flow microcosms were used to study the effects of acid addition on community function, algal community structure, and degradation of a plasticizer, diethyl phthalate. Inputs of HCl decreased the alkalinity (measured as CACO3) from 25 to 8 mg/l, creating diurnal H+ activity curves that indicated that the ecosystem was being severely stressed. Removal of excess acid was accompanied by a return to a normal diurnal pH cycle. Nutrient concentrations and O2 production did not give a definite indication of stress resulting from the addition of acid. Algal community structure and total biomass were not affected by acid inputs. Also, degradation rates of diethyl phthalate by the aquatic bacteria were similar for the control and the acid-stressed systems. |
Supplementary Notes |
Pub. in Water, Air, and Soil Pollution 17, p225-233 Feb 82. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: The Effects of Acid Perturbation on a Controlled Ecosystem. |
PUB Date Free Form |
26 Oct 81 |
Category Codes |
13B; 8A; 68D; 47D; 97R |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323814930 |
Origin |
NTIS |
Type |
CAT |