Precipitation and Throughfall Chemistry in the San Francisco Bay Area1
- J. G. McColl and
- D. S. Bush2
At Berkeley, California, main ionic constituents of bulk precipitation during the wet season of 1974–1975 were SO42-, Cl−, HCO3−, Na+, and Ca2+, and mean H+ concentration was 10.7 ± 1.5 µeq/liter (pH 5.0). Although SO42- comprised 50% of the anions in bulk precipitation, H+ concentration had the highest correlation with NO3−. Impacted air pollutants accumulated on tree leaves between major rainstorms. Atmospheric N and S were correlated with NO3− and SO42- in bulk precipitation and leafwash in a Eucalyptus globulus forest. Ionic composition of bulk precipitation resembled that of surface-soil solution in an adjoining, recently clear-cut area.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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