航空機駐機地区における一酸化炭素濃度

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書誌事項

タイトル別名
  • Carbon Monoxide Level on Flight Line at Japan Air Self-Defense Force Air Bases.
  • コウクウキチュウキ チク ニ オケル イッサンカ タンソ ノウド

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説明

Carbon monoxide (CO) is formed by the incomplete combustion of carbon-containing materials such as aviation fuels. Exposure to exhaust fumes from aircraft engines can lead to CO poisoning. This study determined environmental CO concentrations on flight line at Japan Air Self-Defense Force Air Bases (AB). In addition, we considered factors which increase CO concentration using multiple regression analysis. We conducted CO measurements at downwind from aircraft on flight line and in bunker using controlled-potential electrolysis method. This survey was performed at Naha AB (subtropical zone), Hamamatsu AB (temperate zone), Misawa AB (temperate zone) and Chitose AB (subarctic zone). Surveyed aircraft types were T-4, F-15 and F-2. Each aircraft was fueled either JetA-1+ or JP-4. The number of aircrafts on flight line was 1 to 3. When single aircraft was operating on flight line, the highest CO concentrations in T-4 and F-15 were 60.8 ppm (JetA-1+, Chitose AB) and 2.3 ppm (JetA-1+, Naha AB), respectively. In case of multiple aircrafts, CO concentration of JetA-1 fueled T-4 at Chitose AB indicated maximum value among all measurements, that is 61.2 ppm. The maximum CO level in bunker was 2.2 ppm (JetA-1+ fueled F-15 at Chitose AB). These values did not exceed occupational health standards. Multiple regression analysis revealed that aircraft type, wind direction, ambient temperature and the number of aircrafts were significant contributing factors of CO concentration, whereas fuel type and humidity had no significance. We conclude that CO concentration on flight line and in bunker has little effect on human health.

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