Arsenic contamination in drinking water is the news that offensive has continued both in the country and abroad. The contamination caused both from nature and from human action itself. When a man receives large amounts of arsenic can cause acute symptoms, such as diarrhea, vomiting, blurry, hazy, or drunk, etc, but if you get a little volume and have a long period of time will cause chronic toxic symptoms like skin symptoms occurred. Cancer and death in both. Research and research concerning arsenic contamination has been interested in the issue of the impact occurring health. To solve the problem of contamination and to develop methods for monitoring. However, measures to prevent and solve the serious should receive cooperation from all parties. October news report 2551 (2008) contamination was found arsenic in drinking water in southern China to make people weak symptoms occurred. Vomiting and blurry to be hundreds of people. Because managing pond wastewater treatment plant to smelt steel is not effective. When a heavy rain storm causes massive waste water caused leaks to the environment and the Community (1), the best in Bangladesh found that the underground water that is applied to intake excess arsenic contamination. Arising from mineral resources that have large amounts of arsenic has been confused in the wash and contamination in underground water. In addition, Cambodia Argentina, Brazil, Mexico and Chile, Tibet Viet Nam in the North of the United States, they found arsenic contamination in the ground water is high as well, (2), (3) Thai country own contamination found arsenic in water in arsenic contamination is 2534 (1991), Amphoe Ron phibun, Nakhon SI thammarat, which is caused by tin mining, which is contaminated with arsenic mineral line. In the process of separating minerals. Arsenic will be extracted along with the tail rocker and was left without an appropriate handling. Therefore, arsenic contamination of drinking water to local communities (2), and when the Suphanburi 2549 (2006) Found to contaminate surface water arsenic exceeded the standard. By a person who has been moderated in some areas there was contamination found arsenic in urine. This may be caused by contamination through mining and management of nature inappropriate older it is. (4) Arsenic is a natural substance that is found in the composition of the soil. Rocks and minerals are found in copper ore, gold, silver, Tin and manganese (2) in the area of underground water source near the mineral line is high arsenic contamination is considered to contaminate by nature. Best of contamination by human actions are improper mining management, such as in the case of Ron phibun district of tin mining, etc. However, there are several benefits of arsenic, as well as a component of pest control. Herbicide Chemical treatment of wood combined with lead batteries to improve performance. Other elements mixed with more types of coated in metal mixer, or use a digital clock to make Light Emitting Diode (LED), which is a piece of electronic equipment, the new one khotnit Cap (2), (5) Human beings have a chance to get arsenic, both touching the skin. Remove dust aerosol inhalation with arsenic or arsenic vapour and eating or drinking water that has been contaminated. Typically, the human body will eliminate arsenic in small doses out urine within 2 days, but if I get the arsenic only 130 mg causes liver and intestine were destroyed. Green and yellow are vomiting, diarrhea, severe drunk raving and d. life. If the quantity is less and there is a long time for many years to cause disease, toxic arsenic ruea or r-Nicolas SI ... (Arsenicosis) symptoms will start from skin irritation to a side and thick. Skin color changes to dark black hand and foot is a large black spots until they become skin cancer, kidney cancer, bladder cancer, lung cancer, as well as affect the nervous system and cardiovascular system finally died in the end (2) The World Health Organization defines the water quality for the consumption of arsenic contamination should not exceed 0.01 mg/l, or 10 pp b (6), (7), while in Thai pollution control given by the surface water quality that will be consumed through a preliminary treatment and disinfection. There must be a maximum arsenic contamination 0.01 mg per liter as well (8) groundwater quality standards, but to the quality of drinking water consumed in industry-standard containers and sealed with a bow products arsenic contamination up to 0.05 mg per liter. (9), (10) in addition, arsenic is not a primary substance, that need to be analyzed and how to analyze the standards required by the device, called Atomic Absorption (8), which is very expensive. It takes a long time, and there are only a few places in the country, or Thai set measuring arsenic, high price, and outreach are difficult. The surveillance of contamination in drinking water is filled with difficulties. These issues make the Thai local authorities pay attention more. With such important research study results to get arsenic in pregnant women's jeans: the baby that may affect the occurrence of diseases, including cancer, later of the chulabhorn Research Institute (11) development of analytical check series portable type of arsenic, Mahidol University page.Asks a quick analysis and cost-effectiveness (12) there is also a research subject to eliminate arsenic in the water by adding oxygen to the water (13) or settling arsenic by chlorine and compounds of iron chloride (FeCl3) (14), which will be beneficial to prevent danger from arsenic in drinking water, and more. However, every effort will be made to areas where there is contamination and risk areas, surveillance measures that may have contaminated the rat continues to be State-of-the-art research and development, and appropriate from time to time.
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