Abstract
Collection of atmospheric particulate samples from ships is subject to severe contamination problems. This contamination can arise from direct stack effluents; dirt, paint, rust, etc. from the decks and superstructure carried by local wind eddies around the ship; sea salt from bow spray; and the pump and filter holder used for collection. A collection system for atmospheric particulates has been designed to avoid these contamination problems. Operation of the collector, which consists of a plastic filter holder and protective door mounted on an eight meter high bow tower, is controlled by relative wind direction. Condensation nucleus counts are also monitored at the top of the tower.
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