Chemical pollution :  a global overviews. 

 - UNEP :  Nations Environment Programs,  1992. 
 - 106 p. ;  26 cm. 
 - Earthwatch .
<br/><br/>Includes references. 
<br/><br/> Open access. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution.