 High levels of nitrates in the groundwater, which pose serious health threats such as ethemoglobinemia to infants and young children, if ingested.

 Cholera, typhoid and dysentery were prevalent due to contaminated water supplies.

 Numerous mosquito breeding which hastened the spread of malaria.

 Malnutrition due to shortage of food aids which cannot reach badly affected areas.

 Victims suffered severe trauma and anxiety of anticipating another major tsunami.

Glossary
Aquifers- underground layer of water-bearing permeable rock or unconsolidated materials (gravel, sand, silt, or clay)

Ethemoglobinemia- The growth of certain bacteria that readily convert nitrate to nitrite since infants have relatively low acidity in their stomachs compared to adults.

 Ecosystems such as mangroves, coral reefs, wetlands were battered

 The spread of solid and liquid waste and industrial chemicals, water pollution and the destruction of sewage collectors and treatment plants threaten the environment

 Rapid clean-up of affected areas has also resulted in inappropriate disposal methods, including air burning and open dumping, leading to secondary impacts on the environment.

 Salinisation and contamination of water bodies such as rivers and aquifers due to leakage in sewer tanks affected soil fertility and made its sterile. This affects yield of crops.

ECONOMIC
IMPACT
http://en.wikipedia.org/wiki/2004_Indian_Ocean_earthquake

 Seamen and the coastal fishing communities suffered a plunge in their income uptake due to the damage of fishing gears and boats

 An estimated 66% of the fishing fleet and industrial infrastructure in coastal regions were damaged by the wave surges which accounts for several millions of dollars

 Tourist were reluctant to visit unaffected resorts near the disaster stricken area due to psychological fears resulting a drop in tourist arrivals

 Both the earthquake and the tsunami may have affected shipping in the Malacca Straits by changing the depth of the seabed and by disturbing navigational buoys and old shipwrecks. Compiling new navigational charts may take months or years.