Survival and activity of an atrazine-mineralizing bacterial consortium in rhizosphere soil

Article Abstract:

The effects of plant rhizosphere on atrazine degradation were investigated in soil inoculated with an atrazine-mineralizing bacterial consortium comprised of three bacterial species. A substantial increase in the rate of atrazine mineralization was observed with the introduction of the consortium into the soil, compared to non-inoculated soil. In nonplanted soil, 71% of the atrazine was mineralized after four weeks, while 84% of the atrazine was mineralized in soil with corn plants. No significant difference was noted in the rate of atrazine mineralization by the consortium in nonplanted and planted soil. Results show that the rate of atrazine mineralization was significantly enhanced by bioaugmentation with the atrazine-mineralizing consortium.

Soil degradation, Rhizosphere, Biomineralization

---

Atrazine exposures through drinking water: exposure assessments for Ohio, Illinois, and Iowa

Article Abstract:

A systematic exposure assessment procedure was developed to assess the exposure of humans to chemicals in drinking water. The procedure was used to assess the exposure to atrazine, a widely used pesticide in the Corn Belt, of populations in Ohio, Illinois and Iowa. The results show that less than 0.25% of the assessed populations are exposed to atrazine above the lifetime health advisory level of 3.0 parts per billion (ppb), and that 94%-99% of assessed populations are exposed to atrazine levels of less than 1.0 ppb. It was concluded that atrazine is not a significant health threat based on the current knowledge of atrazine toxicity.

Health aspects, Drinking water, Pesticides, Water quality, Pesticide residues

---

Reflectometric interference spectroscopy for the determination of atrazine in natural water samples

Article Abstract:

Atrazine is a pollutant widespread in agricultural fields. Tests have shown that atrazine is present at high levels in surface, groundwater and soil waters. To determine the environmental risks caused by atrazine, methods to detect atrazine and its residues in natural waters are needed. Reflectometric interference spectroscopy (RIFS) is a new technology that has been developed to monitor herbicides in natural water samples. Unlike established chromatographic methods, RIFS is more effective, efficient and convenient. However, its specificity needs further improvement.

Methods, Measurement, Environmental aspects, Spectrum analysis, Spectroscopy, Herbicides, Water analysis

Similar abstracts:

• Abstracts: Unified constitutive equations of foam materials. Characterization of multiaxial constitutive properties of rubbery polymers
• Abstracts: Mall of America to become largest in western hemisphere. Ready to roll. Highly refined
• Abstracts: Evaluation of two support programs promoting international technology transfer between SMEs. Letter from the Gama World
• Abstracts: Industrial emission control using lidar techniques. Application of elastic lidar to PM10 emissions from agricultural nonpoint sources

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.