Effect of Soil Properties and Aging Time on Oral and Inhalation Bioaccessibility of Copper Oxide Nanoparticles in Soils
| Autor: | Yanhua Qiu, Helian Li, Shiwei Li, Fang He, Zongquan Sun, Ming-Hui Chang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
inorganic chemicals
Copper oxide nanoparticles Health Toxicology and Mutagenesis Metal Nanoparticles Regulation of gastric function 010501 environmental sciences Toxicology 01 natural sciences Soil Human health Humans Soil Pollutants Ecotoxicology Soil properties Aged 0105 earth and related environmental sciences Intestinal phase Inhalation Chemistry technology industry and agriculture Oxides 04 agricultural and veterinary sciences General Medicine Pollution Environmental chemistry Soil water 040103 agronomy & agriculture Nanoparticles 0401 agriculture forestry and fisheries Copper |
| Zdroj: | Bulletin of Environmental Contamination and Toxicology. 107:967-974 |
| ISSN: | 1432-0800 0007-4861 |
| Popis: | In this study, soils spiked with copper oxide nanoparticles (CuO NPs) or Cu(NO3)2 and aged as long as 90 days were utilized to investigate effect of soil properties and aging on oral and inhalation bioaccessibility of CuO NPs. Results showed that oral bioaccessibility of CuO NPs in gastric phase (GP) ranged from 70% to 84%, it significantly decreased to 50%–70% in intestinal phase (IP). The inhalation bioaccessibility of CuO NPs in artificial lysosomal fluid (ALF) ranged from 66% to 85%, and much higher than that in Gamble’s solution (GS, 3.3%–23%). By comparing CuO NPs to Cu(NO3)2 bioaccessibility, insignificant difference was found. The aging time (D15 and D90) had limited effect on their oral and inhalation bioaccessibility. CEC and free Al were positively and clay content was negatively correlated with CuO NPs inhalation bioaccessibility, while Cu(NO3)2 inhalation bioaccessibility decreased with increasing soil clay content and pH. Our findings provide an essential basis to evaluate the human health risks of CuO NPs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink