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ARS Home Office of Communications Images Photos Oct07





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Image Number D**896-1** Measuring fumigant concentration at several distances above the soil surface, a student adjusts the rate of airflow through a charcoal sample collector. The charcoal is used to absorb and trap fumigant gases, which are then analyzed in the laboratory.   Photo by U.S. Salinity Laboratory.  640 pixels wide: (d896-1.jpg)   Please visit our Image Gallery


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