Decreased transpiration in poplar trees exposed to 2,4,6‐trinitrotoluene

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Monday, January 27, 1997
Phillip L. Thompson
Liz A. Ramer
Aaron P. Guffey
Jerald L. Schnoor
Journal Title: 
Environmental Toxicology and Chemistry

This article discusses the effects of various concentrations of the explosive 2,4,6‐trinitrotoluene (TNT) on the transpiration of hybrid poplar trees growing in hydroponic media. Transpiration was measured daily by gravimetric means. The rapid removal of TNT from hydroponic solutions was a result of plant uptake and required a daily dosage of TNT to ensure a relatively constant exposure over time. Transpiration decreased with increasing TNT concentrations ≥5 mg/L. Decreases in transpiration were accompanied by leaf chlorosis and abscission. A comparison between a laboratory study and a pilot‐scale experiment showed good scale‐up potential.


Thompson, Phillip L., Liz A. Ramer, Aaron P. Guffey, and Jerald L. Schnoor. "Decreased transpiration in poplar trees exposed to 2, 4, 6‐trinitrotoluene." Environmental toxicology and chemistry 17, no. 5 (1998): 902-906. DOI: