Aminomethylphosphonic acid (AMPA) is the main metabolite of the herbicide glyphosate. Its degradation rate in soil is lower compared to glyphosate which often results in relatively higher AMPA concentrations in the environment. The acute toxicity of AMPA is low.
Student groups with an even number of female and male students at the age of 20 to 29.
4 university cities as sampling areas.
2001 - 2015