ODOR DETECTION DEVICE FOR DETECTING TRACE AMOUNT OF MOLD ODOR SUBSTANCE, AND THE LIKE

摘要

To provide a method for detecting a trace amount of a mold odor material or the like of 0.000003 mg/L to 0.000005 mg/L (3 ng/L to 5 ng/L) in a resident and to effectively detect the trace amount of the mold odor material or the like while the Japanese Patent Application No. 2016 179079 has detected an odor of fish and an odor from the outside.SOLUTION: A detection device includes a water receiving tank 71 for odor detection in the middle of a branch pipe 6 for an odor sensor branched from a raw water pipe 5 to an automatic water monitoring device 1 for fish for detecting a mixing of toxicants in raw water, an odor collection container 82 and a metal oxide semiconductor 84 of which the resistance value is changed by a gas are installed on an upper part of the receiving tank 71, the metal oxide semiconductor 84 is housed in a sealed tube 86 connected to the upper end blowout port of the odor collection container 82, an intake fan 85 is constituted so that the raw water in the water tank 71 is sprayed to the metal oxide semiconductor 84, and the upper end blowout port of the odor collection container 82 is formed to have a smaller diameter than the lower end suction port.SELECTED DRAWING: Figure 2