• Salinization of groundwater in the coastal area
• Ammonium contamination in groundwater
• Groundwater level drops in Hanoi (-1 m/yr, total 30 m drop), Ho Chi Minh City (total 30 m), and in many other places in the Mekong River Basin; groundwater levels also decreased greatly.
• Land subsidence in Hanoi because of over-extraction
• High and increasing amount of arsenic in groundwater
Download full report http://unesdoc.unesco.org/images/0024/002436/243616E.pdf