Multigenerational exposure of Ag materials (nano and salt) in soil - environmental hazards in Enchytraeus crypticus (Oligochaeta).

ABSTRACT: Because of its properties, silver is among the most used metals both as salt and as nanomaterials (NMs), hence reaching the environment. Multigenerational (MG) exposure testing is scarce, and especially so for NMs and soil invertebrates. In this study the MG effects of Ag NMs (Ag NM300K) and Ag salt (AgNO₃) were assessed, using Enchytraeus crypticus in LUFA 2.2 soil. Survival, reproduction and internal Ag concentration in the animals were measured throughout 7 generations (5 generations (F0-F4) in spiked soil plus 2 (F5-F6) in clean soil) exposed to sublethal concentrations corresponding to the reproduction EC₁₀ and EC₅₀ obtained in standard toxicity tests (45 and 60 mg Ag per kg soil DW for AgNO₃; 20 and 60 mg Ag per kg soil DW for Ag NM3

SUBMITTER: Santos FCF 

PROVIDER: S-EPMC10825909 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature