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Published online 1 May 2008
Published in J Environ Qual 37:858-864 (2008)
DOI: 10.2134/jeq2007.0451
© 2008 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Contribution of Hydrolysis in the Abiotic Attenuation of RDX and HMX in Coastal Waters

Fanny Monteil-Rivera, Louise Paquet, Romain Giroux and Jalal Hawari*

Biotechnology Research Inst., National Research Council of Canada, 6100 Royalmount Avenue, Montréal, Québec, Canada H4P 2R2


Figure 1
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  		Fig. 1. First-order plots for (a) RDX (45 µmol L–1) and (b) HMX (10 µmol L–1) alkaline hydrolysis (symbols are mean value and error bars are standard errors of triplicate experiments (n = 3)).

 

Figure 2
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  		Fig. 2. Pseudo-first-order constants for RDX and HMX alkaline hydrolysis as a function of hydroxide concentration.

 

Figure 3
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  		Fig. 3. Comparison between abiotic degradation in natural samples (M = Marine, EST = Estuarine, F = Freshwater; mean value ± standard error (n = 2)) and predictions of disappearance based on a hydrolysis process for RDX.

 

Figure 4
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  		Fig. 4. Comparison between abiotic degradation in natural samples (mean value ± standard error (n = 2)) and predictions of disappearance based on a hydrolysis process for HMX.

 

Figure 5
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  		Fig. 5. Time courses for abiotic degradation of RDX (left column) and HMX (right column) in coastal samples at 50°C (symbols are mean value and error bars are standard error of duplicate experiments (n = 2)).

 




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