Abstract
Samples of precipitation, dry deposition and total deposition have been obtained from Tutuila Island, American Samoa, since April 1976. These collections are part of a study of global levels of pollutants. The volume of rain water collected by a HASL wet/dry collector has averaged within 4% of the volume expected based on data obtained using a standard rain gauge. The deposition of Cl−, SO −24 , NA+. Mg−2 and K+ in the total collector, which is exposed continuously to the atmosphere, is about 10% greater than the deposition in the wet plus dry sides of the HASL collector.
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The collector was named for the Health and Safety Laboratory (HASL), predecessor of the Environmental Measurements Laboratory.
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Bogen, D.C., Nagourney, S.J. & Torquato, C. A field evaluation of the Hasl wet-dry deposition collector. Water Air Soil Pollut 13, 453–458 (1980). https://doi.org/10.1007/BF02191846
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DOI: https://doi.org/10.1007/BF02191846