油ガス田地域(新潟)と非油ガス田地域(茨城・群馬)における軽質非メタン炭化水素濃度の比較II : 1994年〜1999年冬季

概要

論文の詳細を見る
Air samples were collected in November and December 1994-1999 from a gas and oil field area (Niigata) and areas of no known oil and gas deposits (Ibaraki and Gunma). The concentration of nonmethane hydrocarbons were measured. The concentration of ethane, ethylene, propane, isobutane and n-butane in the samples shows a positive correlation with acetylene regardless of the distance from the natural gas deposits. Automobile emission is considered to be a major source of ethane, ethylene, propane, isobutene and n-butane, because acetylene is known to be mainly emitted from automobiles. A few samples collected in the vicinity of natural gas deposits shows high ethane and propane concentrations. This is presumed to be caused by emissions from oil and gas deposits.
2012-04-16