<原著>紫外線照射による笑気ガスの分解挙動

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Since twenty years ago, air pollution caused by the waste anesthetic gas in the operating room has been a world wide problem of the health of personnel who are working in this ward. And we have equipped the waste gas scavenger valves on all anesthetic apparatus in our hospital. This waste gas is conducted from the operating room to the hospital suction line and exhausted into the open air. The concentration of N_2O mounted to several percent at the orifice of hospital suction-pump room. From this evidence, we have tried to confirm how N_2O of higher concentrations behaves under irradiation of the ultraviolet rays with wave-length 360-365 nm which can arrive in the trophosphere. Our results revealed that the high concentration of N_2O could produce NO_2 in relation to the concentration of N_2O qualitatively. Photolysis of N_2O in the trophosphere by solar radiation has been ruled out by many authors. But, at special circumstances such as around the orifice of the suction-pump of hospital where the concentration of N_2O is very high, we believe that attention to the behavior of the waste anesthetic gas will be important. N_2O has long atmospheric residence time and is increasing its concentration in the atmosphere by the increasing use of nitrogen fertilizers and combustion of fossil fuels resulting in the reduction of ozone in the stratosphere. From the evidence, it is necessary to introduce in hospital the decomposable apparatus and the collector of the waste anesthetic gas.
近畿大学の論文
1980-12-25

<原著>紫外線照射による笑気ガスの分解挙動

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