Последние добавленные видео:
Sanitation
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3 years ago
48482 3 years ago 4:40Using behaviour analysis to improve water, sanitation and hygiene practices
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8 years ago
37009 8 years ago 10:57The Impact Of Poor Sanitation On Health
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3 years ago
745025 3 years ago 13:44Sanitation Expert Answers Trash Questions From Twitter | Tech Support | WIRED
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10 years ago
16178 10 years ago 7:55Introduction to Water - Sanitation and Hygiene
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3 years ago
905896 3 years ago 7:04Making $44K A Year As A Sanitation Worker In NYC | On The Job
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3 years ago
3097 3 years ago 3:50Sanitation: Toilet Talk - Public Health Series | Academy 4 Social Change
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5 years ago
338673 5 years ago 2:01Module 3 — Personal Hygiene and PPE
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7 years ago
5623 7 years ago 5:274.1 Introduction to Sanitation
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11 years ago
343390 11 years ago 3:50Sanitation in Meat and Poultry Plants
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8 years ago
96988 8 years ago 4:33A New York sanitation worker
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8 years ago
3941 8 years ago 9:014.5 Introduction to sanitation safety planning
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7 years ago
18434 7 years ago 3:10SANITATION IN PUBLIC PLACES
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7 years ago
20094 7 years ago 2:03SOCIAL HYGIENE AND SANITATION
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4 years ago
562 4 years ago 2:59Dr Carissa F Etienne—Water, Sanitation, and Hygiene in Health Care Facilities SHORT VERSION
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7 years ago
2143412 7 years ago 5:29PERSONAL HYGIENE
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2 years ago
108056 2 years ago 2:46Clean Water and Sanitation 💧 SDG 6 🛁 Sustainable Development Goals for Kids
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4 years ago
20046 4 years ago 4:57New York City's Best Art Curator May Be a Retired Sanitation Worker