Integrated Lake-Watershed Acidification Study: atmospheric inputs

Wet and dry deposition, throughfall chemistry, and ambient air quality were quantified to determine whether the three lake/catchments under study (see preceding abstract) did in fact receive similar atmospheric inputs, as had been hypothesized. Atmospheric inputs to Woods, Panther, and Sagamore lake...

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Bibliographic Details
Published in:Water, air, and soil pollution air, and soil pollution, 1985-01, Vol.26 (4), p.339-353
Main Authors: Johannes, A.H, Altwicker, E.R, Clesceri, N.L
Format: Article
Language:English
Subjects:
acid deposition
acidification
Applied sciences
atmosphere
Continental surface waters
deposition
Exact sciences and technology
forests
ions
lakes
Natural water pollution
Pollution
precipitation
Water treatment and pollution
watersheds
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Summary:Wet and dry deposition, throughfall chemistry, and ambient air quality were quantified to determine whether the three lake/catchments under study (see preceding abstract) did in fact receive similar atmospheric inputs, as had been hypothesized. Atmospheric inputs to Woods, Panther, and Sagamore lakes were measured daily from March 1978 to December 1981. Wet samples were analysed for sample volume, field pH, and conductivity. Dryfall samples were analysed for pH, conductivity, cations and anions. Precipitation quality was nearly identical at all sites, and ion loadings to each catchment were principally controlled by the amount of precipitation. There was no evidence of a yearly trend for any ion concentration in wet deposition, and annual precipitation quantities showed little deviation from the long-term averages for the region. Throughfall measurements under trees showed enrichment in base cations and acid anions. Deciduous trees increased the precipitation pH, whereas coniferous trees decreased it.
ISSN:0049-6979
1573-2932
DOI:10.1007/BF00280690