Education (1) Color (1) Deterioration (1) Family relationships (1) Costs (1) Children (1) Groundwater (1) Water (1) Taste (1) Pollution (1) Orientation (1) Nuisances (1) Notebooks (1) Income (1) Households (1) Face (1) Contamination (Technology) (1) Breast (1) Bacteria (1) Average (1) Location (1) Research (1) Water-supply (1) Age (1) Attitudes (1) Sociological aspects (1) Quality (1) Odor (1) Family (1) Protection (1)