Basic concepts of occupational health
To properly assess the impact of work on health, it is necessary to clearly distinguish the main terms used in occupational health and occupational pathology.
A fundamental concept is working conditions. They represent a complex combination of two components:
- Factors of the working environment itself (what surrounds the worker).
- Characteristics of the labor process (how the work is performed).
It is their combination that directly determines a person's level of work capacity and health status in the short and long term.
Depending on the nature of the impact of adverse conditions on the body, two fundamentally different groups of pathologies are distinguished:
- An occupational disease is a pathological condition (which can occur in both acute and chronic forms) with a strict etiological link to the workplace. The main criterion here is absolute dependence: the disease is a direct consequence of exposure to specific harmful occupational factors. Without these factors in the working environment, this pathology cannot develop in a person. As a result of such a disease, the worker temporarily or permanently loses their occupational work capacity.
- A work-related disease is a common somatic pathology that occurs in any people, even those not associated with hazardous production. However, in this case, poor working conditions act as a powerful risk factor. They are capable of:
- Significantly increasing the incidence rate and overall prevalence of the disease among the staff.
- Triggering a much more severe clinical course of the ailment.
The pathogenetic basis of work-related diseases lies in the fact that an unfavorable environment makes work excessively fatiguing. This, in turn, leads to the depletion of reserves and a sharp drop in the body's overall resistance.
Morbidity statistics and paradoxes
The assessment of occupational safety in the Russian Federation, according to Rosstat data for 2007, was characterized as critical. Despite technological development, a huge proportion of the population continued to work in inadequate conditions.
The statistical picture demonstrates serious problems:
- 23.4% (almost every fourth worker in the industrial sector) perform their duties in an environment that completely fails to meet state sanitary and epidemiological standards.
- Half of those exposed to hazardous and harmful factors are women.
When analyzing epidemiological data, researchers encounter the so-called paradox of morbidity statistics.
The essence of the paradox is as follows: official reports show a neat trend toward a decrease in the number of occupational diseases. However, this picture is false. The illusion of well-being is formed exclusively due to extremely low detection rates of occupational pathologies by medical institutions.
In reality, the situation is the opposite: the number of people employed in hazardous or dangerous industries is steadily growing.
The figures illustrating this paradox (using 2006 as an example) look alarmingly low due to underreporting:
- The overall occupational morbidity rate was only 1.61 cases per 10,000 workers.
- Out of this meager number, classical occupational diseases accounted for 1.58.
- Occupational poisonings accounted for only 0.03.
Organization of control
To prevent the development of the described pathologies and combat harmful conditions, strict monitoring is required. In Russian practice, control over how enterprises comply with regulations on eliminating occupational hazards is carried out by two main structures:
- Industrial and sanitary supervision (evaluates the hygienic and medical aspects of the environment).
- Technical supervision (controls the safety of equipment and technological processes).
Briefly: answers to topical questions
What is the structure of occupational morbidity by nosological forms?
The structure of occupational morbidity includes various nosological forms that depend on the acting occupational factor.
- Infectious diseases — caused by biological factors (have taken first place, include tuberculosis and hepatitis B).
- Poisoning, dermatitis, allergoses — occur under the action of chemical factors.
- Diseases of nerves, joints, and muscles — caused by psychophysiological factors.
- Vibration and radiation sicknesses — develop due to physical factors.
- Pneumoconioses — lung diseases caused by industrial aerosols, occupying one of the leading places in the morbidity structure.
What groups are harmful occupational factors divided into by the nature of exposure?
According to the nature and characteristics of exposure, harmful occupational factors are divided into four main groups.
- Physical factors — microclimate, electromagnetic fields, radiation, noise, vibration, aerosols, and lighting.
- Chemical factors — industrial poisons, anesthetics, antibiotics, cytostatics, and substances of biological nature produced by chemical synthesis.
- Biological factors — pathogenic microorganisms, parasites, producer microorganisms, as well as dust of plant and animal origin.
- Factors of the labor process — labor severity and intensity, physical overloads, forced working posture, and psycho-emotional stress.
What types of medical examinations are used to detect occupational diseases?
Two mandatory types of medical examinations are used to detect occupational diseases.
- Preliminary medical examinations — conducted upon employment to determine the compliance of the worker's health with the upcoming activity and to prevent individuals with deviations from being exposed to harmful conditions.
- Periodic medical examinations — conducted during the course of employment for dynamic monitoring of health status and timely early detection of initial forms of occupational diseases.
To avoid confusing the terms: "Occupational" — DIRECT cause (you wouldn't get sick without the job). "Work-related" — GENERAL disease (the job only exacerbates it).
Class and exam questions
What is the main difference between an occupational disease and a work-related disease?
An occupational disease arises solely due to exposure to a specific harmful factor in the workplace (without it, the disease will not develop). A work-related disease is a common illness that can also occur in everyday life, but poor working conditions increase the risk of its development and worsen its course.
Why is the decrease in occupational morbidity in official reports called false?
Because the actual number of people working in hazardous conditions is growing. The decline in statistical indicators is not related to improved working conditions, but to extremely poor detection of occupational pathologies during medical examinations.
Which authorities monitor the elimination of occupational hazards?
The implementation of measures to eliminate occupational risks is monitored by industrial-sanitary and technical supervision authorities.
What is the mechanism of development of work-related diseases?
Adverse conditions make work more fatiguing. This leads to exhaustion, which entails a decrease in the body's overall resistance and makes it vulnerable to common diseases.
What else to study on this topic
- Classification of environmental factors of the workplace and the labor process.
- Acute and chronic forms of occupational intoxications.
- Mechanisms of the body's adaptation to adverse occupational factors.
- Regulatory and legal framework for industrial-sanitary supervision.
Master the entire topic in the "Hygiene" course
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- Complete study guide on "Physiology of Labor" and 530 more pages of the subject
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Other topics in "Chapter 6. Fundamentals of Occupational Hygiene and Physiology"
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