EGU22-454, updated on 26 Mar 2022
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Microbial degradation of Atrazine in Groundwater

Mohammad Arar and Anat Bernstein
Mohammad Arar and Anat Bernstein
  • ben gurion university of the negev, the zuckerberg institute for water research, Water Resources, Israel (
Atrazine is one of the most frequently detected pesticides in groundwater. Its microbial degradation is often studied in soils, but less frequently studied in groundwater . In Israel, atrazine is the most frequently detected pesticide in groundwater. It was hypothesized that its degradation potential in groundwater is wide. Thus, this study aimed to gain indication for ongoing degradation in atrazine affected groundwater.

 Results of microcosm experiments with groundwater bacteria indicated on its degradation potential. PCR analysis of microcosms cultures has shown the presence of atzA and trzN genes. Furthermore, LC-MS analysis of groundwater extracts identified a large proportion of atrazine degradation products indicating on ongoing degradation in the field. Further isotope analysis of atrazine in  groundwater extracts will provide an additional line of evidence for ongoing degradation in groundwater.

How to cite: Arar, M. and Bernstein, A.: Microbial degradation of Atrazine in Groundwater, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-454,, 2022.


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