Established in 1978, the GEMS/Water Programme is the primary source for global water quality data. It is a multi faceted water science centre oriented towards building knowledge on inland quality issues worldwide. Key activities include data collection research assessment and capacity building. The twin goals of the programme are to improve water quality monitoring and assessment capacity in participating countries and to determine the state and trends of regional and global water quality.
These goals are implemented through the GEMS/Water online database GEMStat with water quality data from more than 100 countries and over four million entries
for lakes reservoirs rivers and groundwater systems. GEMS Water activities add value to country level data by creating global and regional water quality assessments. The programme also carries out research indicator development and assessments on a range of water quality issues and methodologies. GEMS/Water data have been used by many organizations including the United Nations system and universities around the world.
GEMS/Water is considered as an inter agency body of the UN and is functionally part of the Science Division of the United Nations Environment Programme (UN Environment).
The UN Environment GEMS/Water Programme (UN Environment Headquarters)Science Division, SC
United Nations Environment Programme, UN Environment
P.O. Box 30552
Nairobi, 00100, KENYA Homepage: http://www.unep.org/gemswater
Point of contact
The UN Environment GEMS/Water Data Centrec/o Federal Institute of Hydrology (BfG)
P.O. Box 200253