Derwent, R G <br/><br/>
Elevated ozone levels in the air of Central London.  [electronic resource] 

 -  Nature  Feb 1973 
 - 342-3 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0028-0836 
<br/><br/><label>Standard No.: </label>10.1038/241342a0  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air Pollution--analysis<br/>Hydrocarbons--analysis<br/>London<br/>Nitric Oxide--analysis<br/>Nitrogen Dioxide--analysis<br/>Ozone--analysis