Water pollution alert sounded nationwideVietNamNet Bridge – Water found in some 71 per cent of Hanoi’s wells is contaminated with higher than permitted levels of phosphate. The overexploitation of water nationwide increases the level of arsenic in groundwater, exceeding the permitted level of 10mg per litre. The research by the institute also showed that in many cities, lakes contain waste water, blocking the water flow. Researchers said that until now, the damage caused to human health and livelihoods due to water pollution has not been assessed. Therefore, financial compensation on losses caused by water pollution and the subject of compensation have not been regulated.