Different influences of field aging on nickel toxicity to Folsomia candida in two types of soil

Abstract

Metal aging in soils has been considered an important factor influencing its availability and toxicity to organisms. In this study, we report the influence of 5 years field aging on the nickel (Ni) toxicity to collembolan Folsomia candida based on two different types of soil from Dezhou (DZ) and Qiyang (QY) counties in China. Acute and chronic toxicity of Ni to F. candida was assessed in both freshly spiked and field aging contaminated soils. We found that 5 years field aging increased the EC 50 and 2d-LC 50 values of Ni to F. candida in the DZ soil, while little influence on the Ni toxicity was observed in the QY soil. There was no adverse effect of the long-term field aging on the Ni toxicity to the survival of F. candida in the two tested soils. In addition, field aging of the two soils impacted differently the water-soluble Ni concentrations, which were significantly correlated to the juvenile production of F. candida based on a logistic model. Our study highlights different effects of long-term field aging on the Ni toxicity to F. candida between divergent types of soil, and this should be taken into account in future toxicity testing and risk assessment practices.

Hazard assessment of nickel nanoparticles in soil—The use of a full life cycle test with Enchytraeus crypticus

“…Nickel nanoparticles (NPs) have been introduced in various consumer products and industries, such as catalysis, ceramics, lubricants, coatings, electronics, and fuel , with an estimated production of approximately 20 tons/yr just in the United States . The effects of Ni (salt form) in the terrestrial environment are well studied (e.g., Scott‐Fordsmand ), and survival and reproductive effects are widely reported for different soil invertebrate species, including the earthworms Eisenia fetida and Eisenia veneta , the enchytraeid Enchytraeus albidus , and the collembolans Folsomia candida and Folsomia fimetaria .…”