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BANGKOK, Thailand (AP) -- Myanmar's cyclone-devastated Irrawaddy delta and Indonesia's Sumatra island face high risks of arsenic contamination in groundwater that could cause cancer and other diseases in residents, according to a new study. Temporary shelters are built in Myanmar's Kokko Village as residents try to recover from the cyclone. Temporary shelters are built in Myanmar's Kokko Village as residents try to recover from the cyclone. Using a digitalized model that examines geological features and soil chemistry in Southeast Asia, researchers writing in the peer-reviewed journal Nature Geoscience mapped several likely hot spots that had never been assessed for arsenic risks. "Obviously, there is concern," said Michael Berg, one of the five authors, who is a senior scientist at the Swiss Federal Institute of Aquatic Science and Technology in Dubendor, Switzerland. "If you look at our data, there is risk of arsenic in the ground water." Arsenic,