Shellfish study shows bacteria

PUBLISHED : Saturday, 25 November, 1995, 12:00am
UPDATED : Saturday, 25 November, 1995, 12:00am

MORE than one in 10 shellfish and fish studied in the three months to September contained harmful levels of bacteria, the Health Department said yesterday.


The number of fish with high levels of heavy metals, particularly cadmium and arsenic, had also risen.


But the department's Assistant Director of Health (hygiene), Dr Leung Pak-yin, said these levels would not harm health.


The department's third set of food surveillance results for 1995 showed a reduction of about 30 per cent in the number of samples tested for radioactive fallout from Daya Bay.


None had proved positive since the Guangzhou plant opened two years ago, the department said.


Of 9,006 samples collected for testing during the period, overall 2.2 per cent proved harmful.


Tests showed 12.5 per cent of both the 184 shellfish and 136 fish tested contained harmful bug levels, down from 14 per cent of shellfish and 18.4 per cent of fish in the second quarter.


But Dr Leung said consumers should ensure food was cooked properly.