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Water and Sanitation
According to the World Bank data conducted in 2014, Lao has met the Millennium Development Goal (MDG) targets on water and sanitation regarding to UNICEF/WHO Joint Monitoring Programme. However, as of today, there are approximately 1.9 million Lao population could not access to improved water supply and 2.4 million people without access to improved sanitation due to a large inequalities access between areas that are close to good roads and remote inaccessible locations.

Poor sanitation can affect people health and national economy development. Annually, poor sanitation and hygiene problem cause three million disease cases in Lao, 6.000 premature deaths and the children in rural areas suffer from poor sanitation is very high at 49 percent in 2011 making 193 million dollar national economic loss per year, equal to 5.6% of GDP. In Laos, there are major incidences of dysentery and diarrhea caused partly by deficient sanitation, improper water supply and absence of adequate wastewater treatment facilities as a result of rapid increase in urban population. Laos people who can get access to sanitation in rural areas account for only 36 percent in 2004. The government in Laos adopt the Millennium Development as prepared collaborative by the United Nations, World Bank and International Mutual Fund to promote water supply and sanitation for its people to access safe drinking and basic sanitation.

The Mekong River plays an important role for Laos economy. The Mekong River basin covers nearly 90 percent of Laos country and drains toward Vietnam. In Laos, government encourages hydro-power investment which increase pressure on water and sea animal threats. The development of electricity in Laos and export to neighboring countries are essential for government revenues to reduce poverty. Although hydro-power does not pollute water or air directly, hydro-power reservoir and dam can impact the change in environment, land use and natural habitats. There are potential environmental consequences of damming water, creating gigantic reservoirs, flooding entire area, blocking natural course of river and constructing power lines. For example, the structure of dam and reservoir interfere fishing migration, and alter water temperature and river's flow; as a result. it may injure the live of sea animals and animals on land.

Fisheries contributes about 13 percent of Laos national GDP per year. Because Laos is covered almost by the Mekong River, people use stream directly for drinking, cooking, bathing and washing. However, as the population increases, watercourses that are used simultaneously for water disposal and water supply cause health issues like diarrhea and typhoid. Meanwhile, locals stated that before the upstream dams were built they could safely drink the Mekong River water. However, after the Xayaburi Dam in Laos is built, the water quality become contaminated. The water quality in Laos become even worse when a new dam is built in Don Sahong, less than 2 kilometer from the town, causing the population get diarrhea and inhale with bad air quality. More importantly, most population live near the Mekong river found dead fish floating in polluted water in the area between the Don Sahong Dam and Preah Rumkel (cambodia) which made their only source of water for drinking, cooking, fishing and every day chores as disaster.

The quality of Mekong River can be assessed by diverse chemical and physical parameter. For example, poly cyclic aromatic hydrocarbons (PAHs) is one of the essential types of persistent pollutants of toxicity from natural resources of water and sediment. According to Environmental Quality Standards, the environmental distribution of PAHs in tropic Asia become a concern of this region as the grow of industrialization and urbanization due to a frequent rain inherent to tropic Asia in which facilitate the transfer of leaked petroleum from land to rivers and coastal water.

In most urban areas in Lao PDR, the pollutants from private properties wash into drains. Little, dirt and rubber compounds from metal, glass and plastic from properties contribute to sediments and nutrients. Hazardous chemicals that include heavy metals such as chromium, copper, zinc and persistent organic pollutants such as furans, dioxins and polychlorinated biphenyls are widely banned while Lao population are not fully aware of its catastrophic effects. As the population in Lao keeps growing, heavy mental contamination from industrial activities increases which lead to a concern toward rudimentary metal smelting facilities in the country and mining activities. Therefore, the surface water quality in downstream of mining and industrial activities become a potential problem for Laos well being.

There is a high chance of getting malaria for those who live around the water which is surrounded by mosquitoes. Through the Millennium Development program, some progresses have been achieved over the past decade in improving healthy system in Laos. The number of health facilities increased by 75 percents, mortality from malaria reduced by 60 percent in rural areas. However, Lao population has not met healthy living standard. In some rural areas, people are lacked of safe drinking water, chemical runoff, sewage and limited access to health services. For example, malnutrition, non-hygienic lifestyle, poverty are caused by inadequate public health services. Although Lao is one of the dominant renewable water resource in Asia, 25 percent of urban dwellers and 40 percent of rural Lao population are lacked access to safe drinking water. In certain location, villagers have to walk up to 2 kilometer to get access to water.

Drinking water sources that are contaminated with harmful chemicals and human waste can cause diseases in children such as gastrointestinal illness, and developmental affects such as learning disorders and cancer. UNICEF works in Lao PDR to help ensure children and families in homes and schools have access to clean water and sanitation facilities. Many rural communities are unaware of appropriate sanitation and hygiene practices. Approximately 24% of the population practice open defecation, and only 28% of children’s faces are disposed of safely.

The major problems associate toward national goal in the Lao water and sanitation involve the absence of national programs to scale up rural hygiene education, inefficient annual budget allocation in rural areas, and weak sector monitoring for rural water supply as well as sanitation. Therefore, in order to improve water and sanitation target for 2020, the Implementation of Water Supply Sector Investment Plan and the National Plan of Action for Rural Water Supply, Sanitation and Hygiene; capital investment is notably needed to finance the operations.