翻訳と辞書 Words near each other ・ Trace class ・ Trace Coquillette ・ Trace Cyrus ・ Trace DeMeyer ・ Trace diagram ・ Trace distance ・ Trace element ・ Trace Elliot ・ Trace erasure principle ・ Trace evidence ・ Trace Family Trio ・ Trace formula ・ Trace fossil ・ Trace fossil classification ・ Trace Gallagher ・ Trace gas ・ Trace heating ・ Trace identity ・ Trace inequalities ・ Trace Junction, West Virginia ・ Trace Lake ・ Trace metal ・ Trace Metal Detection Test ・ Trace mineral analysis ・ Trace monoid ・ Trace of Stones ・ Trace operator ・ Trace radioisotope ・ Trace scheduling ・ Trace State Park Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Trace gas ： ウィキペディア英語版 Trace gas A trace gas is a gas which makes up less than 1% by volume of the Earth's atmosphere, and it includes all gases except nitrogen (78.1%) and oxygen (20.9%). The most abundant trace gas at 0.934% is argon. Water vapor also occurs in the atmosphere with highly variable abundance. ==Natural sources== Several atmospheric trace gases such as ozone , sulfur dioxide and nitrogen oxides are anthropogenic, chemically reactive factors of air quality at a regional level. Others such as carbon dioxide and methane are important greenhouse gases and are produced anthropogenically but mainly by plants, microorganisms and from natural geothermal sources. However, volcanic activity is an important source of trace gases as well. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Trace gas」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.