GGD: No health risks from exposure to dinoterb

The Municipal Health Service (GGD) (Zaanstreek-Waterland, Hollands Noorden, and Kennemerland) has informed us that exposure to dinoterb as a result of recreational activities in surface water with a maximum concentration of 443.8 ng/l does not pose any health risks. The National Institute for Public Health and the Environment (RIVM) investigated this on behalf of the GGD. 

We have received many questions from concerned residents about the health risks of exposure to dinoterb in surface water. As this falls within the expertise of the Municipal Health Service (GGD), we have asked them to provide clarity on this matter. The GGD has asked the National Institute for Public Health and the Environment (RIVM) to carry out a risk assessment.

National Institute for Public Health and the Environment

The RIVM considered a worst-case scenario: daily swimming in water with the highest concentration of dinoterb found. The RIVM concluded that no health risks are to be expected in the assessed exposure scenario (daily exposure via swimming water, oral and dermal). For the other scenarios (diving, boating, playing, and watering the garden), the RIVM also does not expect any health risks, because exposure in these scenarios will be lower than for daily swimming.

For health advice, we refer you to the Municipal Health Service (GGD).