The results of tests designed to find levels of 130 potentially dangerous agents in fresh water will be published online in August in an effort to relieve public anxiety over falling water quality. The Advisory Committee on the Quality of Water Supplies yesterday endorsed the move to put annual test results on the Web. A printed edition will be available by October. Committee chairman Kenneth Fang Hung said members were generally surprised that almost all results were above World Health Organisation (WHO) standards. 'We should not be worried that the water quality is not good and we should trust the scientific testing done over the past year,' Mr Fang said. Last year, the Water Supplies Department carried out more than 20,000 tests on water from the mainland. Of the 130 parameters tested - agents which at certain levels can be dangerous to humans - only dissolved oxygen and biochemical oxygen failed to meet guidelines. However, Mr Fang said that after treatment even these two criteria could meet WHO standards. Committee members are planning to visit water treatment facilities of the Water Supplies Department and on the mainland. Mr Fang said pollution at certain spots along the Dongjiang and the Dongshen water system should not cause concern. 'Pollution in just one spot was diluted by the huge water flow and could not be detected in the tests,' he said.