Ключевые слова: adult, air, air pollution, anthrax, background, biohazard, caucasian, cholera, closeup, contamination, coverall, danger, ecology, engineer, environmental, equipment, female, glasses, goggles, grey, health, hepatitis, isolated, lady, land pollution, man made disaster, mask, one, people, person, pollution, portrait, ppe, protection, protection equipment, scientist, studio, suit, technological disaster, water pollution, woman,