You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.

ASSESSMENT OF THE POTENTIAL RISK IN CHEMICAL SYNTHESIS OF CADMIUM SULPHIDE NANOPARTICLES

4(41) 2014

DOI xxxxxxxx

Demetska O. V.1 , Kozytska T. V. 2, Andrusishina I. M.1, Movchan V. O.1, Tkachenko T.Yu.1, Grodzyuk G. Ya.3

ASSESSMENT OF THE POTENTIAL RISK IN CHEMICAL SYNTHESIS OF CADMIUM SULPHIDE NANOPARTICLES

1SI «Institute for Occupational Health of NAMS of Ukraine», Kyiv
2Bogomolets National Medical University, Kyiv
3L. V. Pisarzhevsky Institute of Physical Chemistry of NAS of Ukraine, Kyiv

Full article (PDF), UKR

Background. Researchers and workers, which are engaged in nanotechnologies, is a group, which is at most exposed to nanoparticles.
Objective. To assess risk level for workers, engaged in chemical synthesis of cadmium sulphide nanoparticles.
Materials and methods. A synthesis of the cadmium sulphide (CdS) nanoparticles was carried out in various conditions. The chemical analysis of samples was conducted by ICP-AES method on the Optima 2100 DV, Perkin-Elmer, USA. The concen¬tration of nanoparticles in the air of the workplace was measured using DAS-2707, Russia. The risk assessment was made using a “control banding” tool.
Results. The concentration of particles of 1—100 nm in the air fluctuated in the range of 22 000—42 000 particles/cm3. In the air samples nanoparticles of metals, which are usually used in the laboratory, were found: cadmium (Cd), lead (Pb), iron (Fe), copper (Cu), and silver (Ag). As a result of risk assessment the control band CB3 was received. CB3 corresponds to high risk level and requires risk reduction, including restriction of workers’ contacts with cadmium sulphide nanoparticles. Conclusions. It was determined that concentrations of cadmium nanoparticles before and after the synthesis were constant and did not exceed the calculated safe reference levels for nanomaterials. The presence of the background level of nanoparticle in premises, the composition of which depends on production processes, was proved. Also, it is confirmed, that low levels of quan¬titative concentrations of nanoparticles in the working zone air do not always correspond to risk levels for workers.


Key words: nanoparticles, cadmium sulphide, potential risk

References

  1. Brouwer, D. H. 2012, «Control banding approaches for nanomaterials», Ann. Occup. Hyg., v. 56, no. 5, pp. 506-514.
  2. «BSI-British Standards, Nanotechnologies, Part 2. 2007, Guide to safe handling and disposal of manufactured nanomaterials». PD 6699, BSI 2007. December 2007.
  3. Folkmann, J. 2009, «Oxidatively damage DNA in rats exposed by oral gavage to C60 fullerenes and singlewalled carbon nanotubes», Environ Health Perspect., v.117, no. 5, pp. 703-709.
  4. Gorth, D. J. 2011, «Silver nanoparticle toxicity in Drosophila: size does matter», Int. J. Nanomedicine, no. 6, pp. 343-350.
  5. Guidelines, 4.1.1482-03. 2003, «Determination of chemical elements in biological media and preparations by inductively coupled plasma atomic emission spectroscopy and inductively coupled plasma mass- spectrometry», Moscow: Minzrdav of Russia, 16 p. (in Russian).
  6. Patent of Ukraine № 45625, «Method for determination of the presence and concentration of nanoparticles in the air of the working zone», 25.11.2009. (in Ukraine).