Environ. Sci. Technol. 2008, 42, 5904–5910
Bioaccessibility of Environmentally Aged 14C-Atrazine Residues in an Agriculturally Used Soil and Its Particle-Size Aggregates N I C O L A I D . J A B L O N O W S K I , * ,† JANETTE MODLER,† ANDREAS SCHAEFFER,‡ AND PETER BURAUEL† Forschungszentrum Ju ¨ lich GmbH, Institute of Chemistry and Dynamics of the Geosphere, ICG-4 - Agrosphere, 52425 Ju ¨ lich, Germany, and University of Technology Aachen-RWTH Aachen Institute for Environmental Research (Biology V) Environmental Biology and Chemodynamics, 52074 Aachen, Germany
Received January 21, 2008. Revised manuscript received May 28, 2008. Accepted May 28, 2008.
After 22 years of aging under natural conditions in an outdoor lysimeter the bioaccessibility of 14C-labeled atrazine soil residues to bacteria was tested. Entire soil samples as well as sand-sized, silt-sized, and clay-sized aggregates (>20, 20-2, and
