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The large positive gradient of sulfur dioxide, molecular oxygen, and water vapor from the cloud tops to their bottoms, as implied by Earth-based observations and these results, gives added support for the presence of major quantities of aqueous sulfuric acid in the clouds. A comparison of the inventory of inert gases found in the atmospheres of Venus, Earth, and Mars suggests that these components are due to outgassing from the planetary interiors.<\/jats:p>","DOI":"10.1126\/science.203.4382.802","type":"journal-article","created":{"date-parts":[[2006,10,5]],"date-time":"2006-10-05T16:39:42Z","timestamp":1160066382000},"page":"802-805","source":"Crossref","is-referenced-by-count":92,"title":["Venus Lower Atmospheric Composition: Analysis by Gas Chromatography"],"prefix":"10.1126","volume":"203","author":[{"given":"Vance I.","family":"Oyama","sequence":"first","affiliation":[{"name":"NASA Ames Research Center, Moffett Field, California 94035"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Glenn C.","family":"Carle","sequence":"additional","affiliation":[{"name":"NASA Ames Research Center, Moffett Field, California 94035"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fritz","family":"Woeller","sequence":"additional","affiliation":[{"name":"NASA Ames Research Center, Moffett Field, California 94035"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James B.","family":"Pollack","sequence":"additional","affiliation":[{"name":"NASA Ames Research Center, Moffett Field, California 94035"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"221","reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.198.4316.453"},{"key":"e_1_2_1_2_1","unstructured":"Barker E.S. 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