Water, monitoring potential movement

Monitoring the Potential Movement of Pesticides into Water... 

It is true that to trace the movement of the herbicides studied in this work in the environment, one would need only to measure the As content of various samples. However, the results do have potential usefulness in monitoring herbicide dispersal. Quite frequently, the problem is not to establish whether or not herbicides were present but to establish who was responsible for the herbicide. Thus, drawing on this work and previous work involving multiple source tracing in fresh water (17), one should be able simply to mark a given application of herbicide wdth a... 

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