Lakhasly

Life activity is daily activity and rest, a form of human existence.

Human life activity is carried out in continuous contact with his environment, surrounding objects and people.

Human habitat the environment surrounding a person, which at the moment is determined by a combination of factors (physical, chemical, biological, social) that can have a direct or indirect, immediate or remote impact on human life and health.LIFE ACTIVITY SAFETY

represents a branch of scientific knowledge which covers the theory and practice of protecting man against dangerous and harmful factors in all spheres of human activities, as well as preservation of safety and health in human habitat.

SAFETY ISN'T . A SLOGAN. IT'S A WAY OF LIFE.

BASIC TASKS

SA

5 Search for Hazards

A Analyse the risk

F Find the cause

E Eliminate the coute

T Tell others

Y You are safe

➤ identification of negative effects of human habitat,

➤ protection from dangers and prevention of the impact of negative factors on a person;

liquidation of negative consequences of dangerous and harmful factors' effects;

creation of comfortable environment for people.

DANGER

phenomena, processes, objects capable to damage human health or threaten his life.

Classification of dangers

1. By ongin: natural

-Tectnogenic -anthropogenic

4. Accontiring to the

duration of exposure constant

variable

impulse

2. 
   

   By flow types in living space: mass

   
   


3. 
   

   According to the intensity of flows

   
   

energy:

informatorn

size of the 6. According t Impact zone

By types of impact zone

production

household

urban

emergency zones

dangerous

extremely dangerous

local regional

Interregionat global

DANGER

Classification of dangers

7. According to the degree of completion of the impact on objects potential

implemented

8. By selective identification of

danger by human serises:

datinguishable:

indistinguishable.

5. By type of negative impact: harmfu

dangerous

10. According to the number of people exposed to hazardous effects

-individus

• group (collective3. Biological factors

include

pathogenic (disease-causing) microorganisms (bacteria, viruses, fungi,) and products of their vital activity.

microorganisms (plants, animals)

4. Psycho-physiological factorsAxioms of life activity safety

any objects, processes, phenomena are potentially dangerous for humans:

any activity is potentially dangerous for humans;

⚫no activity can achieve absolute safety;

⚫the safety of any system can be achieved with any degree of probability, which, however, does not exclude the existence of the object.Axioms of life activity safety

⚫any objects, processes, phenomena are potentially dangerous for humans:

any activity is potentially dangerous for humans;

⚫no activity can achieve absolute safety;

⚫the safety of any system can be achieved with any degree of probability, which, however, does not exclude the existence of the object.

Risk

Important characteristic of danger (a measure of possible danger) the frequency with which it can be shown.

Risk (R) Risk the frequency of hazards, the ratio of the number of adverse consequences (n) for a person to their possible number (N) for a certain period of time (year),

R= n/N

Categories of safety depending on the risk of human death

I-conditionally safe R< 10+

II- relatively safe 104