Carbon Monoxide: Its Role in Photochemical Smog Formation

Science  12 Mar 1971:
Vol. 171, Issue 3975, pp. 1013-1015
DOI: 10.1126/science.171.3975.1013


The photochemistry of trace amounts of isobutene and oxides of nitrogen in an atmosphere of air was studied both in the presence and in the absence of small amounts of carbon monoxide. Carbon monoxide accelerates the reaction as measured by nitric oxide oxidation or ozone formation. This finding has relevance to photochemical smog formation.