New risk limits for 18 pesticides in surface water Evidence suggests that existing standards for some of these substances do not sufficiently protect the ecosystem. For others, no standards exist yet or the existing standards are outdated. If these
Tick found in Drenthe is a Hyalomma tick RIVM has investigated the so-called giant tick that was found in Odoorn in the province of Drenthe on 13 July. It is a Hyalomma marginatum female.