Online ISSN: 2515-8260

Keywords : working conditions


OCCUPATIONAL MORBIDITY OF WORKERS ENGAGED IN MINING OF DIFFERENT GRADES OF COAL

Adilov Utkir

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 2722-2737

This work aimed to analyze professional morbidity in the coal industry of Uzbekistan.
The method of data copying from outpatient cards of professional patients and its statistical
processing was used for analysis. The professional morbidity rate in the coal industry was 108
cases per 10 thousand workers and 6.8 times higher than in other industries. At surface coal
mining in the open pit, as compared to underground mining in a coal mine, the number of
cases of first detected occupational diseases was, on average, 2.6 times lower. Thus, the
vibratory disease was most frequently met among workers of open-cast mining in comparison
with underground mining 1.4 times, and professional bronchitis, bronchial asthma and
pneumoconiosis - among workers of underground mining in comparison with open-cast
mining in 2.3 times.Vibration disease is diagnosed among workers of underground mines at
the work experience of 16 years, while among workers engaged in open-cast coal mining - 21
years and more. The analysis of results of medical and labor examination with professional
diseases of coal industry workers showed that among 48.3 ‰ of workers, there were 30.4 ‰
disabilities of Group III and 17.8 ‰ disabilities of Group II. These indicators had differences
depending on the brand of coal mined, so in the mining of brown coal (SiO2-10%), the
disability of professional genesis amounted to Group II 7.5 ‰ and Group III 31.3 ‰, while in
the mining of coal (SiO2-4%) 4.4 times more established Group II disability (73.3 ‰
workers) than Group III - (16.7 ‰). Conclusion: Coal dust of hard and lignite differ in
chemical and physical properties and degree of dispersion, which affects the level of
occupational morbidity and disability of workers.

INSTRUMENTAL MONITORING AND ASSESSMENT OF OCCUPATIONAL RISK IN UZBEKISTAN

Adilov Utkir Khalilovich; Kabilova Gulshan Abdurashidovna

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 2826-2836

The methods of control and assessment of professional risk applied in
the republic do not include the method of assessment of the degree of impact
of harmful and dangerous factors of working conditions on specific
employees, as well as the analysis of actual loss of working capacity of
employees after long periods of labor activity. As a result of incorrectly
chosen assessment methods and methodological approach, working
conditions have a high risk of developing professional and professionally
conditioned morbidity among groups of professions in industries. The purpose
of this work was to determine the improved approaches to professional risk
assessment and instrumental control over their implementation. Assessment
of workers' health indicators depending on working conditions at the
workplace is based on recommendations of the International Labor
Organization. We have developed a package of normative and methodical
documents, including 14 methodical recommendations, as well as Sanitary
Rules and Norms, providing requirements to the hygienic assessment of the
impact of various physical, chemical and biological factors on the health of
workers. Conclusions were made to integrate the characteristics of the factors
of working conditions through the transition from the normalization of
individual parameters of the factors to complex indicators, changing the
methodology of recording the working conditions at the working places to
ensure a comprehensive assessment of all risks in a single procedure and their
systematic monitoring. The use of modern software complexes as part of
special devices for instrumental measurements have a loaded algorithm of
measurements, pre-compiled a special computer program control planning,
which offers the performer an operational hint on the choice of place and
number of measuring points.

HYGIENIC ASSESSMENT OF WORKING CONDITIONS AND HEALTH CONDITION OF THE OIL REFINERY PLANT WORKERS

Adilov U.H .; Khashirbaeva D.M .; Voronina N.V .

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 2871-2879

This work aimed to identify harmful factors in the production environment, identify risk
factors, and assess their impact on the health of workers of the Ferghana Oil Refinery Plant. The
research was conducted in 2010-2014 at the Fergana Oil Refinery. Sanitary and hygienic, labouratory,
calculation and statistical methods of research were used to achieve the goal. The research results
showed that the activity of professional groups of the main production shops of the refinery is
accompanied by an unfavourable impact of a complex of factors of the production environment and
labour process. The workplaces of these categories of specialists correspond to the general class of
working conditions according to the hygienic classification - 3 class 1, 2, 3 and 4 degrees (3.1, 3.2,
3.3, and 3.4), where the high level of gas pollution, industrial noise and vibration, the severity of the
labour process is observed. The technological cycle of production, consisting of sequential production
operations, based on a multistage chain of chemical reactions, allowed identifying one of the leading
harmful production factors - chemical. The composition of chemical pollutants of the working zone
included a wide range of gases and chemical substances: carbon monoxide, sulphur dioxide, hydrogen
sulfide, chlorine, toluene, benzene, acetone, hydrocarbons, kerosene, mineral oils, phenol, sulphur oil,
gasoline, methylethyl ketone, diesel fuel. Thus, based on the obtained research results, the nature and
intensity of unfavorable production factors have been revealed, the level of professional risk for the
employees' health has been assessed, the risk factors determining the employees' professional health
have been identified, the priorities in implementation of preventive measures at the enterprise have
been determined.

HEALTH RISK ANALYSIS OF WORKERS INVOLVED IN COAL MINING IN VARIOUS WAYS

Utkir Adilov

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 2271-2281

Abstract. Occupational risks affect the health of miners and up to 40% of labor losses
are caused by diseases directly or indirectly connected with unfavorable working conditions.
The research aimed to determine the degree of connection of the disease incidence by
temporary loss of working capacity of coal mine workers with working conditions, which was
estimated for all classes of diseases and the relative risk (OR) value was 1.69 units, etiological
share (EF) - 41% and was estimated as average. These incidence rates for the disease classes
were almost complete: Class XIII (OR=5.08 units; EF=80%) and Class XIX (OR=5.03 units;
EF=80%), and high for the disease classes: Class XI (OR=2.57 units; EF=61%) and Class X
(OR=2.46 units; EF=59%). This relationship by day was almost complete among: Class X
(OR=6.18 units; EF=100%), Class XI (OR=7.27 units; EF=100%), Class XIII (OR=7.79
units; EF=100%), and Class XIX (OR=17.87 units; EF=100%). Among workers engaged in
underground coal mining, the value of ОR=1.4 units, EF=29.3%, was occasionally observed
and assessed as small. Relationship of the disease to underground working conditions was
assessed as very high by disease classes: Class X (OR=3.6 units; EF=72.1%), Class XI
(OR=3.8 units; EF=73.5%) and Class XIII (OR=4.8 units; EF=79.1%). The disease
relationship by day was almost complete: in Grade XI (OR=5.3 units; EF=100%) and Grade
XIII (OR=8.9 units; EF=100%), and high in Grade X disease (OR=3.0 units; EF=100%). The
risk of eating disorders of workers was identified by class XI disease and was assessed as very
high in cases (OR=3.8 units; EF=73.8%). A high degree of occupational conditionality was
determined for Class XIII disease (OR=2.2 units; EF=55.3%).

PECULIARITIES OF HYGIENIC ASSESSMENT OF WORKING CONDITIONS OF WORKERS ENGAGED IN OPENCAST AND UNDERGROUND MINING OF BROWN COAL AND IN UNDERGROUND MINING OF HARD COAL

Utkir Adilov

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 1799-1812

Abstract. Employees are working on opencast coal mining from May to September
work in conditions of heating microclimate. A decrease in the influence of the high
temperature of air and solar radiation is reached by the uniform distribution of the hottest
time of day (from 12 to 16 o'clock) by drawing up the working schedule. The selection of
means of individual protection of hearing organs, their regular use, and efficiency assessment
performance will reduce the impact of noise on workers' bodies. Decrease of total working
time in conditions of exposure to industrial vibration not exceeding 5-6 hours will allow
reducing the class of working conditions on this factor. The effectiveness of individual
respiratory protection means the size of dust particles, the degree of insulation of the
underwear space in places where the mask is not tightly attached to the face. Considering dust
dispersion, working conditions classes of workers engaged in brown coal mining in
underground mine #9 "Angrenskaya" decreased by 1 stage, while in mine "Shargunkumir"
the working conditions classes on dust factor, on the contrary, increased by 1 stage.