Computer program for geochemical analysis of acid-rain and other low-ionic-strength, acidic waters
ARCHEM, a computer program written in FORTRAN 77, is designed primarily for use in the routine geochemical interpretation of low-ionic-strength, acidic waters. On the basis of chemical analyses of the water, and either laboratory or field determinations of pH, temperature, and dissolved oxygen, the program calculates the equilibrium distribution of major inorganic aqueous species and of inorganic aluminum complexes. The concentration of the organic anion is estimated from the dissolved organic concentration. Ionic ferrous iron is calculated from the dissolved oxygen concentration. Ionic balances and comparisons of computed with measured specific conductances are performed as checks on the analytical accuracy of chemical analyses. ARCHEM may be tailored easily to fit different sampling protocols, and may be run on multiple sample analyses. 34 refs., 5 tabs.
- OSTI ID:
- 6942164
- Resource Relation:
- Related Information: USGS Water Resources Investigations Report 87-4095A
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
WATER POLLUTION
A CODES
ACID RAIN
ACIDIFICATION
ALUMINIUM
CHEMICAL ANALYSIS
ECOLOGICAL CONCENTRATION
FORTRAN
GEOCHEMISTRY
MONITORING
ORGANIC COMPOUNDS
PH VALUE
ATMOSPHERIC PRECIPITATIONS
CHEMISTRY
COMPUTER CODES
ELEMENTS
METALS
POLLUTION
PROGRAMMING LANGUAGES
RAIN
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)