ORIGINAL RESEARCH

Long-term immunity alterations in the employees of the high hydrogen sulfide content gas condensate processing facility

Boiko OV, Dotsenko YuI
About authors

Astrakhan State Medical University, Astrakhan, Russia

Correspondence should be addressed: Oksana V. Boiko
Bakinskaya, 121, 414000, Astrakhan, Russia; ur.liam@80okyobo

About paper

Author contribution: Boiko OV — study concept and design, data acquisition and processing; Dotsenko YuI — data acquisition and processing; all the authors — approval of the final version of the article, responsibility for integrity of all article sections.

Compliance with ethical standards: the study was approved by the Ethics Commitee of the municipal outpatient clinic № 8 (protocol № 15 dated November 21, 2020); the informed consent was submitted by all study participants.

Received: 2021-11-30 Accepted: 2021-12-13 Published online: 2021-12-18
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Table 1. Concentrations of harmful substances in the air of the working areas
Table 2. Immune status indicators in employees of the Astrakhan Gas Processing Plant with different working experience
Note. * — significant differences (р < 0.05) between groups 2 and 3; ** — significant differences (р < 0.05) between groups 1 and 3; group 1 — working experience 1–3 years, group 2 — working experience 3–5 years, group 3 — working experience 5–10 years, group 4 — working experience exceeding 10 years.