College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China.
College of Municipal and Environmental Engineering, Jilin Jianzhu University, Changchun, 130118, China.
Environ Sci Pollut Res Int. 2020 Mar;27(8):8323-8333. doi: 10.1007/s11356-019-07429-4. Epub 2020 Jan 3.
Biosolids are regarded as a major source of pharmaceutically active compounds (PhACs) in soil and may lead to their accumulation in plants and potential human risks through dietary intake. Using C labeling, we explored the effect of biosolids on the uptake and tissue distribution of carbamazepine (CAB) by three ready-to-eat vegetables (i.e., carrot, celery, and pak choi) under greenhouse conditions. The C-CAB was consistently detected in vegetables and plant tissues with bioconcentration factors in a range of 1.28-37.69, and it was easily translocated from root to leaf and/or stem with translocation factors > 1. The inhibition on the uptake and accumulation of C-labeled carbamazepine from soil by the addition of biosolids was consistently observed, and such inhibitory effect was related to the biosolid amendment rates, the category of vegetable, and the plant growth stages. The influence of biosolids on behavior of CAB and other emerging pollutants in the soil-plant system should be considered in their environmental risk assessment.
生物固体被认为是土壤中具有药理活性化合物（PhACs）的主要来源，并可能通过饮食摄入导致其在植物中的积累和潜在的人类风险。本研究采用 C 标记法，在温室条件下研究了生物固体对三种即食蔬菜（胡萝卜、芹菜和白菜）中卡马西平（CAB）的吸收和组织分布的影响。C-CAB 始终在蔬菜和植物组织中被检测到，其生物浓缩因子在 1.28-37.69 范围内，且易从根部转移到叶和/或茎部，迁移系数>1。通过添加生物固体，土壤中 C 标记的卡马西平的吸收和积累受到持续抑制，这种抑制作用与生物固体添加率、蔬菜种类和植物生长阶段有关。在进行环境风险评估时，应考虑生物固体对土壤-植物系统中 CAB 和其他新兴污染物行为的影响。
