Water Microbiology 38 Water Supply 38 Water quality 38 Environmental aspects 36 Environmental health 36 Gezondheid 36 Health aspects 36 Pollution 36 Public Health 36 Quality Control 36 Water 36 Water Pollution 36 Water quality management 36 prevention & control 36 standards 36 Nepal 3 Water supply standards 3 Foreign Aid Policy, 2002 2 Foreign Investment and One Window Policy, 1992 2 Forestry Sector Policy, 2000 2 Hygiene management 2 Menstrual health 2 National Agriculture Policy, 2004 2 National Drug Policy, 1995 2 National Health Policy, 1991 2 National Health Research policy 2 National Nuclear Policy, 2007 2 National Shelter policy, 1996 2 National Water Plan (2002-2027) 2 National Wetlands policy, 2003 2