<報文>光化学スモッグ被害原因物質の解明に関する研究

概要

論文の詳細を見る
"Since the heavy damage due to photochemical smog took place in 1970, the study on its chemical origine has been conducted continuously. This report is one of which gas chromatographic technique was mainly applied. The three parts of the present research were environmental analysis, photochemical experiment of auto exhaust gas and that of aromatics. 1) Gas chromatographic and gas chromatograph-mass spectrometric analysis of air samples showed the existence of acrolein and methyl nitrate in urban atmosphere. Especially in smog two components were detected at high level. It was suggested that acrolein would cause eye irritation and methyl nitrate would disturb circulation of the blood. 2) A high content of toluene in the air was resulted from the auto exhaust from the burning of reforming gasoline of high octane value. Such carbonyl and nitrocompounds as acetone, acrolein, methyl nitrate, ethyl nitrate, nitromethane, peroxyacetyl nitrate, and nitroethane were found, from the result of photochemical reaction of the auto exhaust. Usually, methyl nitate was at highest concentration. The formation of large amounts of C_3 compound from smaller retio of unsaturated hydrocarbon like butenes except aromatics cannot be understood. 3) It was experimentally found that acrolein, acetone and methyl nitrate were formed through the photochemical reaction of toluene with nitrogen oxides. This fact intently suggested the cleavage of aromatic ring in toluene. In this process, the decreasing rate of toluene was so much as toluene seemed to be relate to smog formation.According to the relationships of these facts, the smog toxics would be made from the aromatics branched as toluene in auto exhaust gas. "
横浜国立大学の論文

<報文>光化学スモッグ被害原因物質の解明に関する研究

スポンサーリンク

概要

著者

関連論文

スポンサーリンク