Contents (Option 15):

15. Analysis of accidents by various methods: statistical, group, monographic, topographical, economic, etc. 2
29. Methods for measuring the concentration of dust in the atmosphere. 7th
38. Production noise as a harmful factor of the external environment and its effect on the human body.
Ultrasound and infrasound. Basic physical characteristics of noise. International scale of loudness. Rationing of noise. eleven
46. ​​Classification of premises by the degree of danger of electric shock. 21
57. Sources of pollution of the hydrosphere. Main indicators of water pollution. -23
References to the used articles. 24