Soil Physics and Land Management Group, Wageningen University, Wageningen, the Netherlands.
Soil Physics and Land Management Group, Wageningen University, Wageningen, the Netherlands.
Sci Total Environ. 2022 Apr 1;815:152938. doi: 10.1016/j.scitotenv.2022.152938. Epub 2022 Jan 8.
Veterinary pharmaceuticals (VPs) are emitted into the environment and transfer to groundwater and surface water is diffuse and complex, whereas actual information on the fate is frequently limited. For 17 VPs of potential concern in the Netherlands, we assessed sources and emission due to animal slurry applications to soil. Hence, we examined the use of VPs in four livestock sectors in the Netherlands for 2015-2018, and quantified animal excretion rates and dissipation during slurry storage. For almost all VPs, administrated quantities to the animals during the period 2015-2018 decreased. VP concentrations during a storage period of six months could decrease between 10 and 98% depending on the compound. Predicted concentrations of VPs in slurries after storage compared well with measured concentrations in the literature. Based on the storage model outcomes, we developed a residue indicator, that quantifies the potential for residues in applied slurry. This indicator agrees well with the most frequently detected VPs in the Dutch slurries, and is therefore useful to prioritize measures aiming at reducing VP emissions into the environment.
兽用药品（VPs）被排放到环境中，并转移到地下水和地表水，其过程具有扩散性和复杂性，而关于其命运的实际信息通常很有限。对于荷兰有潜在关注的 17 种兽用药品，我们评估了由于动物粪便施用于土壤而产生的来源和排放。因此，我们研究了 2015-2018 年荷兰四个畜牧业部门对兽用药品的使用情况，并量化了动物排泄率和粪便储存期间的消散。对于几乎所有的兽用药品，在 2015-2018 年期间给动物施用的数量都减少了。根据化合物的不同，在六个月的储存期内，VP 浓度可能会降低 10%至 98%。储存后泥浆中预测的 VP 浓度与文献中测量的浓度相当吻合。基于储存模型的结果，我们开发了一个残留指示剂，该指示剂定量了施用于泥浆中的残留的潜力。该指示剂与荷兰泥浆中最常检测到的 VP 非常吻合，因此对于优先采取措施减少 VP 向环境排放非常有用。
