Clean water and sanitation

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Across
  1. 5. Harmful materials in the environment
  2. 8. A fluid essential for life
  3. 10. Used water
  4. 13. Presence of impurity which affects negatively
  5. 14. Microscopic organisms
  6. 15. State of complete physical, mental and social well-being
  7. 16. Clean
  8. 17. Quality that organisms have when they are not dead
Down
  1. 1. Keeping yourself and surroundings clean
  2. 2. Provision facilities for safe disposal of wastes
  3. 3. Anything free from dirt
  4. 4. Act of getting rid of something
  5. 6. Way to pure water at home
  6. 7. Mass of salt water
  7. 9. Fit to drink
  8. 11. Our planet
  9. 12. Illness of body