Classification and description of some northeastern Ontario lakes influenced by acid precipitation
Journal Article
·
· J. Great Lakes Res.; (United States)
Statistical analysis of water chemistry data (23 variables for 187 lakes in the Sudbury, Ontario, area) showed that most of the chemical variability was attributable to 4 components: nutrient status, buffering status, atmospheric deposition status, and sodium chloride status. Seven distinct groups of lakes were obvious. Group 1 lakes, scattered throughout the study area, were high in nutrients and chlorophyll, reflecting cultural eutrophication. Groups 2 and 3, characteristic, dilute lakes of the Precambrian shield, had an inverse relationship to the atmospheric deposition status and buffering status dimensions, and were low in smelter-produced ions. They differed in nutrient and chlorophyll a status, group 2 having the higher values. Groups 4, 5, and 6 reflected the impact of airborne pollutants from smelting operations in Sudbury. Group 5 lakes, closest to the smelters had high acidity, low buffering capacity, and high concentrations of smelter-related metals. Group 6 lakes showed a lesser impact, and group 4, limited impact, being more buffered and productive. Group 7, a group of anomalous lakes sharing high pH and high ionic strength, were influenced by limestone bedrock or surficial material as well as urban runoff. 21 references, 7 figures, 3 tables.
- Research Organization:
- Laurentian Univ., Sudbury, Ontario
- OSTI ID:
- 5882993
- Journal Information:
- J. Great Lakes Res.; (United States), Journal Name: J. Great Lakes Res.; (United States) Vol. 6:3; ISSN JGLRD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID RAIN
ALKALI METAL COMPOUNDS
ATMOSPHERIC PRECIPITATIONS
BUFFERS
CANADA
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
COMPARATIVE EVALUATIONS
DEPOSITION
ENVIRONMENTAL EFFECTS
ENVIRONMENTAL QUALITY
EUTROPHICATION
HALIDES
HALOGEN COMPOUNDS
LAKES
NORTH AMERICA
NUTRIENTS
ONTARIO
POLLUTION SOURCES
PRECIPITATION SCAVENGING
RAIN
SEPARATION PROCESSES
SMELTERS
SODIUM CHLORIDES
SODIUM COMPOUNDS
SURFACE WATERS
WASHOUT
WATER CHEMISTRY
WATER QUALITY
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID RAIN
ALKALI METAL COMPOUNDS
ATMOSPHERIC PRECIPITATIONS
BUFFERS
CANADA
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
COMPARATIVE EVALUATIONS
DEPOSITION
ENVIRONMENTAL EFFECTS
ENVIRONMENTAL QUALITY
EUTROPHICATION
HALIDES
HALOGEN COMPOUNDS
LAKES
NORTH AMERICA
NUTRIENTS
ONTARIO
POLLUTION SOURCES
PRECIPITATION SCAVENGING
RAIN
SEPARATION PROCESSES
SMELTERS
SODIUM CHLORIDES
SODIUM COMPOUNDS
SURFACE WATERS
WASHOUT
WATER CHEMISTRY
WATER QUALITY