Portable PC-based instrument for measuring sulfur dioxide emission using electrochemical sensor
Abstract
A microcomputer-based instrument for measuring sulfur dioxide volcanic emission was designed, calibrated and implemented. The instrument was used to measure the level of sulfur dioxide in Mudspring, Mt. Makiling, UPLB. Measurements were done in three sampling sites: Mudspring I, Mudspring II, and the vents near Mudspring II. The study showed that there was zero or less than 0.005 ppm concentration of sulfur dioxide at all sites in the Mudspring vicinity. The concentration levels were found to be safe and negligible compared to the 2 ppm threshold limit value (TLV) of sulfur dioxide set by the American Conference of Governmental Industrial Hygienists.
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