standards 33 Environmental aspects 32 Environmental health 32 prevention & control 32 Gezondheid 31 Health aspects 31 Pollution 31 Public Health 31 Quality Control 31 Water 31 Water Microbiology 31 Water Pollution 31 Water Supply 31 Water quality 31 Water quality management 31 Nepal 15 Children 3 Knowledge 3 Decorative paint 2 Education 2 Health risk assessment 2 International Paints 2 Lead anti-corrosive agents 2 Lead driers 2 Lead paint 2 Multination Paint 2 National Paint 2 Paint 2 Physiological effect 2 Risk Assessment 2