HK pupils risk mercury poisoning
As many as 10 per cent of high school students in Hong Kong may be at risk of mercury poisoning because of their high consumption of fish such as tuna and swordfish, a government survey has found.
As many as 10 per cent of high school students in Hong Kong may be at risk of mercury poisoning because of their high consumption of fish such as tuna and swordfish, a government survey has found.