Transport and distribution of TNT and DNT in the presence of surface vegetation with Fimbristylis cymosa

Sangchul Hwang; Ingrid Padilla; Irimar Feliciano; Juan Falcon

doi:10.1117/12.818289

4 May 2009 Transport and distribution of TNT and DNT in the presence of surface vegetation with Fimbristylis cymosa

Sangchul Hwang, Ingrid Padilla, Irimar Feliciano, Juan Falcon

Proceedings Volume 7303, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XIV; 730307 (2009) https://doi.org/10.1117/12.818289
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

A small-scale field column experiment was set up to assess the impact of a native tropical grass (Fimbrystilis Cymosa) on the transport and distribution of high explosives (TNT and DNT). Explosives powders in a membrane were embedded as a point source below 2 inches from the column surface. Three different surfaces were layered on top of the explosives layer: one column with sand, two columns with Fimbrystilis Cymosa, and one column with a mixture of (sand+clay) soil. Hydraulic differences due to surface vegetation which would affect explosives transport were monitored by measuring the amount of infiltrated rain water. For the biogeochemical parameters, explosives concentrations in the infiltrated water were quantified. At the end of the experiment, each column was sacrificed by multiple layers and distribution of explosives concentrations, soil pH, and soil dehydrogenase concentration was quantified from the layers. Plants were also analyzed for explosives concentrations in their leaves and roots.

Citation Download Citation

Sangchul Hwang, Ingrid Padilla, Irimar Feliciano, and Juan Falcon "Transport and distribution of TNT and DNT in the presence of surface vegetation with Fimbristylis cymosa", Proc. SPIE 7303, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XIV, 730307 (4 May 2009); https://doi.org/10.1117/12.818289

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available