Improving the hygienic assessment of chemical air pollution in the work area using the individual sampling method

Introduction. Currently, the hygienic characteristics of the working conditions of employees of enterprises with harmful working conditions are based mainly on the standard method of workplace air sampling without taking into account individual physiological parameters, different degrees of physical exertion of employees at individual levels of the technological process during the work shift.

The study aims to make a comparative assessment of the air pollution indicators of the working area of workers of the nickel electrolysis workshop using standard and individual sampling methods.

Materials and methods. The scientists have conducted research at mining and metallurgical enterprises of the Murmansk region located in the European part of the Arctic zone of the Russian Federation. These enterprises are part of the mining complex of the region and are engaged in the extraction and processing of copper-nickel sulfide ores in order to obtain finished products — electrolytic nickel. The authors conducted air sampling in industrial premises using standard methods using individual samplers during a work shift.The nickel content in the aerosol was determined using a polarographic method based on the reduction of nickel dimethylglyoximate complexes on a mercury droplet electrode in the presence of chloride‑ammonia buffer and sodium sulfite. The method of inductively coupled plasma atomic emission spectrometry was used to analyze the metal content.

Results. A comparative analysis of the results showed that the use of individual sampling devices makes it possible to objectively assess the level of exposure to toxic water-soluble nickel compounds. Experts have established that the method of individual sampling in terms of the frequency of exceeding the maximum permissible concentration in the air of the working area by 30.5%, compared with the standard procedure, gives a more accurate picture of the degree of risk of harm to the health of workers with harmful chemical factors. The use of individual sampling techniques can increase the objectivity of the results of control and supervisory measures in the field of occupational health and expert decisions in establishing a link between diseases and the profession of workers in harmful chemical industries.

Limitations. Conducting studies on the hygienic assessment of chemical air pollution in the working area in the production facilities of the nickel electrolysis workshop was difficult due to the difficulties of passing the admission procedure to the territory of the metallurgical enterprise.

Conclusion. Hygienic characteristics of chemical air pollution in the work area using the method of individual sampling significantly increases the objectivity of quantifying the risk to the health of chemical industry workers and reduces the time required for laboratory tests.

Ethics. The study does not require the provision of an opinion from the biomedical Ethics Committee or other documents.

Contributions:
Shilov V.V. — concept, editing and approval of the final version of the article;
Nikanov A.N. — collection and statistical processing of the material, editing of the article;
Barinov V.A. — research concept and design, editing;
Petrukhin N.N. — statistical processing of the material and editing of the article;
Andreenko O.N. — research design and article editing.
All co-authors — responsibility for the integrity of all parts of the article.

Funding. The study had no funding.

Conflict of interest. The authors declare no conflict of interest.

Received: 11.07.2025 / Accepted: 23.07.2025 / Published: 05.09.2025

1. Bukhtiarov I.V., Prokonenko L.V., Lagutina A.V., Courierov N.N., Pochtareva E.S. Adapting the Form of the sanitary and hygienic characteristics of working conditions to the new Sanitary Law. Med. truda i prom. ekol. 2021; 61(12): 787–796. https://doi.org/10.31089/1026-9428-2021-61-12-787-796 https://elibrary.ru/tvdykh (in Russian).

2. Lipatov G.Y., Adrianovskiy V.I., Gogoleva O.I. Chemical air pollution of the occupational environment as a factor for professional risk for workers of main occupations in the copper and nickel metallurgy. Gigiena i Sanitariya. 2015; 94(2): 64–67. https://elibrary.ru/tphjoz (in Russian).

3. Serebryakov P.V., Fedina I.N., Rushkevich O.P. Features of malignant neoplasms formation in respiratory system of workers engaged into mining and processing of copper-nickel ores. Med. truda i prom. ekol. 2018. 9:9–15. https://doi.org/10.31089/1026-9428-2018-9-9-15 https://elibrary.ru/yjgupb (In Russian)

4. Shur P.Z., Redko S.V., Fadeev A.G., Goryaev D.V., Fokin V.A. Assessment of working conditions and health status of employees of non-ferrous metallurgy enterprises. Med. truda i prom. ekol. 2023; 63(8): 537–544. https://elibrary.ru/swennz https://doi.org/10.31089/1026-9428-2023-63-8-537-544 https://elibrary.ru/swennz (in Russian).

5. Shilov V.V., Syurin S.A. Influence of harmful occupational factors on the development of bronchopulmonary pathology in electrolytic nickel production workers. Toxicological Bulletin. 2015. № 4 (133): 6–11. https://elibrary.ru/ulebkn (in Russian).

6. Syurin S.A., Nikanov A.N. Health risks from exposure to industrial aerosols of soluble and insoluble nickel compounds. Gigiena i Sanitariya / Hygiene and Sanitation, Russian journal. 2024; 103(8): 876–883. https://doi.org/10.47470/0016-9900-2024-103-8-876-883 (In Russian)

7. Shilov V.V., Markova O.L., Barinov V.N., Nikanov A.N., Andreenko O.N. The possibility of using biomonitoring of harmful chemicals in the assessment of individual occupational risk. Russian Scientific Conference with International Participation "Occupational Medicine: Problems of Occupational Health Preservation in Russia at the Turn of the First and Second Quarter of the XXI Century". SPb; 2024: 266–272. https://elibrary.ru/ybzlkr (in Russian).

8. Nieboer E., Odland J.Ø., Thomassen Y., Romanova N., Chaschin V., Nikanov A. Multi-component assessment of worker exposures in a copper refinery: Part 2. Biological exposure indices for copper, nickel and cobalt. Journal of Environmental Monitoring. 2007; 9(7): 695–700. https://doi.org/10.1039/b618400f https://elibrary.ru/lkiozl

9. Nikanov A.N., Chashchin V.P., Gorbanev S.A., Dardynskaya I., Gudkov A.B., Laghain B., Popova O.N., Dorofeev V.M. Risk-oriented approach to the preservation of professional health of workers at non-ferrous metallurgy enterprises in the Arctic zone of the Russian Federation. Ekologia cheloveka. 2019; 2: 12–20. https://doi.org/10.33396/1728-0869-2019-2-12-20 (in Russian).

10. Chashchin V.P., Gorbanev S., Syurin S., Nikanov A., Chashchin M., Thomassen Y., Ellingsen D.G., Nieboer E., Odland J.Ø. Occupational medicine and environmental health in the border areas of Euro-Arctic Barents region: A review of 30-year Russian-norwegian research collaboration outcomes. International Journal of Environmental Research and Public Health. 2020; 17(11): 3879. https://doi.org/10.3390/ijerph17113879 https://elibrary.ru/nzfjbw

11. Nikanov А.N., Talykova L.V., Rocheva I.I., Chashchin V.P., Frolova N.M. Function of industrial risk factors in formation of reproductive effects in workers of nickel enterprises in Far North. Ekologiya cheloveka. 2009; 6: 33–47. https://elibrary.ru/kxrifv (in Russian).

12. Nieboer E., Thomassen Y., Chashchin V., Odland J. Occupational exposure assessment of metals. Journal of Environmental Monitoring. 2005; 7(5): 412–415. https://elibrary.ru/ljaetl

13. Bukhtiyarov I.V., Tchebotaryov A.G., Prokhorov V.A. Current state of working conditions, occupational morbidity of employees of mining and metallurgical enterprises. Metallurgist. 2017; 2: 9-12. https://elibrary.ru/xxwpnd (in Russian).

14. Istomin A.V., Saarkoppel L.M., Yatsyna I.V. Gigienicheskie problemi korrekcii factora pitaniya u rabotaushchih vo vrednih usloviyah [Hygienic problems of correction of the nutritional factor in workers in harmful conditions]. M.: Izd-vo «Dashkov I.K.»; 2015. https://elibrary.ru/thigbn (in Russian).

15. Syurin S., Vinnikov D. Occupational disease claims and non-occupational morbidity in a prospective cohort observation of nickel electrolysis workers. Scientific Reports. 2022; 12(1): 7092. https://doi.org/10.1038/s41598-022-11241-5 https://elibrary.ru/xwihfb

16. Gorbanev S.A., Syurin S.A. Occupational diseases in workers of copper and nickel industry in the Kola Arctic (1989–2018). Zdorov'e naseleniya i sreda obitaniya – ZNiSO. 2020; 331(10): 22–7. https://doi.org/10.35627/2219-5238/2020-331-10-22-27 https://elibrary.ru/bilrzu (in Russian).

17. GOST R 59670-2021 Air in the working area. General requirements for methods for determining the content of chemicals. Moscow: Russian Institute of Standardization. 2021 (in Russian).

18. Svidovoy V.I., Frolova N.M., Chashchin V.P. Hygienic assessment and measurement of industrial aerosols of predominantly fibrogenic action. [Gigienicheskaya otsenka i izmerenie proizvodstvennykh aehrozolej preimushhestvenno fibrogennogo dejstviya]. SPb; 2006 (in Russian).

19. Syurin S.A., Nikanov A.N. Professional risks and diseases in the production of nickel and copper in the Kola Arctic. Sanitarniy vrach. 2019; 8: 31–36. https://elibrary.ru/wpmraq (in Russian).

20. Syurin S., Vinnikov D. Occupational disease predictors in the nickel pyrometallurgical production: a prospective cohort observation. Journal of Occupational Medicine and Toxicology. 2022; 17(1): 1–10. https://doi.org/10.1186/s12995-022-00362-2 https://elibrary.ru/ylvwnh (in Russian).

21. Nikanov A.N., Chashchin V.P. Hygienic assessment of exposure and determination of its value in the production of nickel, copper and cobalt at the mining and metallurgical complex of the Kola Arctic. Ekologiya cheloveka. 2008; 10: 9–14. https://elibrary.ru/juredv (in Russian).

22. Nikanov A.N., Chashchin V.P., Ulanovskaya E.V. et al. Characteristics of the air environment of the production premises of the cobalt salt extraction department. Gigiena i sanitariya. 2023; 102(8): 806-810. https://elibrary.ru/xfbidf https://doi.org/10.47470/0016-9900-2023-102-8-806-810 (in Russian).