Occupational Exposure to Metal Engineered Nanoparticles: A Human Biomonitoring Pilot Study Involving Italian Nanomaterial Workers

被引:12
作者
Bocca, Beatrice [1 ]
Battistini, Beatrice [1 ]
Leso, Veruscka [2 ]
Fontana, Luca [2 ]
Caimi, Stefano [1 ]
Fedele, Mauro [2 ]
Iavicoli, Ivo [2 ]
机构
[1] Ist Super Sanita, Dept Environm & Hlth, I-00161 Rome, Italy
[2] Univ Naples Federico II, Dept Publ Hlth, I-80138 Naples, Italy
关键词
nanomaterials; exposure assessment; biological monitoring; biomarkers; risk assessment; risk management;
D O I
10.3390/toxics11020120
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Advances in nanotechnology have led to an increased use of engineered nanoparticles (ENPs) and the likelihood for occupational exposures. However, how to assess such exposure remains a challenge. In this study, a methodology for human biomonitoring, based on Single Particle Inductively Coupled Plasma Mass Spectrometry (SP-ICP-MS), was developed as a tool to assess the ENPs exposure of workers involved in nanomaterial activities in two Italian Companies. The method was validated for size and number concentration determination of Ag, Au, In2O3, Ir, Pd, Pt, and TiO2 NPs in urine and blood samples. The results showed the presence of In2O3 NPs in blood of exposed workers (mean, 38 nm and 10,371 particles/mL), but not in blood of controls. Silver, Au, and TiO2 NPs were found in urine (mean, Ag 29 nm and 16,568 particles/mL) or blood (mean, Au 15 nm and 126,635 particles/mL; TiO2 84 nm and 27,705 particles/mL) of workers, though these NPs were found also in controls. The presence of ENPs in both workers and controls suggested that the extra-professional exposure is a source of ENPs that cannot be disregarded. Iridium, Pd, and Pt NPs were not detected neither in blood nor in urine. Overall, the findings provided a rational basis to evaluate the exposure assessment to ENPs in cohorts of workers as part of risk assessment and risk management processes in workplaces.
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页数:15
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