Hygienic assessment of impacts exerted by factors related to educational process and lifestyle on health of schoolchildren attending secondary schools in industrial megacity

Мұқаба

Дәйексөз келтіру

Толық мәтін

Аннотация

Introduction. Negative trends that occur regarding health of contemporary schoolchildren are caused by complex impacts exerted by environmental factors.

Material and methods. We examined 178 schoolchildren (the test group) in primary, middle, and high school attending an educational establishment with advanced studies on several subjects. The establishment was located on a territory with phenol concentrations in ambient air being up to 1.7 MPC average daily. Our reference group was made up of children who attended an ordinary secondary school located on an area which was relatively sanitary and hygienically safe.

Results. We compared education processes in both establishments and revealed that schoolchildren from the test group had to study more intensely. Exposed children had phenol in their blood in concentrations that were 2.0 times higher than the background level and 1.4 times higher than the same parameter in the reference group. The average group concentration of hydrocortisone was 1.2 times higher in the test group than in the reference one. We revealed an authentic dependence between elevated hydrocortisone concentration in blood in children from the test group and phenol concentrations in their blood being higher than hygienic standards (R2=0.39; F=22.9; p=0.036). Our examination allowed establishing chronic exposure to a chemical factor and intense education process at a school with advanced studies on several subjects to result in by 2.0-9.0 times higher risks of pathologies in the nervous system, height and weight disorders, disrupted physical development, heart rate disorders, the formation of antibodies to thyroid gland tissues, 1.2-4.5 times more intense free radical oxidation, intoxication, negative changes in time gaps of basic mental functions and thyroid gland volume.

Conclusion. We established the highest risk of physical development disorders and pathologies in the nervous system caused by complex impacts exerted by environmental factors in the sensitive puberty (OR=2.1-7.32; DI=1.4-33.4; p=0.007-0.05).

Авторлар туралы

Svetlana Valina

Federal Scientific Center for Medical and Preventive Health Risk Management Technologies

Хат алмасуға жауапты Автор.
Email: valina@fcrisk.ru
ORCID iD: 0000-0003-1719-1598

Кандидат мед. наук, зав. отделом гигиены детей и подростков ФБУН «Федеральный научный центр медико-профилактических технологий управления рисками здоровью населения», 614045, Пермь.

e-mail: valina@fcrisk.ru

Ресей

Nina Zaitseva

Federal Scientific Center for Medical and Preventive Health Risk Management Technologies; E.A. Wagner Perm State Medical University

Email: noemail@neicon.ru
ORCID iD: 0000-0003-2356-1145
Ресей

Irina Shtina

Federal Scientific Center for Medical and Preventive Health Risk Management Technologies

Email: noemail@neicon.ru
ORCID iD: 0000-0002-5017-8232
Ресей

Olga Ustinova

Federal Scientific Center for Medical and Preventive Health Risk Management Technologies; Perm State University

Email: noemail@neicon.ru
ORCID iD: 0000-0002-9916-5491
Ресей

Dar’ya Eisfeld

Federal Scientific Center for Medical and Preventive Health Risk Management Technologies

Email: noemail@neicon.ru
ORCID iD: 0000-0002-0442-9010
Ресей

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© Valina S.L., Zaitseva N.V., Shtina I.E., Ustinova O.Y., Eisfeld D.A., 2024


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