Arable
Active substances – drinking water detections
Propyzamide
Propyzamide is a key herbicide used (but not exclusively) in oilseed rape. The permitted application window for oilseed rape is 1 October through to 31 January.
The graph below illustrates propyzamide detections at abstractions between January and May 2020. It shows a significant level of detections occurring beyond the commencement of the closed period.
Recorded propyzamide detections are as follows:
• 1,123 detections recorded between 1 January and 30 April 2020. • 161 (15%) above 0.1ug/l. • 729 (65%) after 1 February. • 111 detections over 0.1 after 1 February (10%).
The drinking water standard is 0.1ug/l (0.1 micrograms/litre).
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