Dear moniker Vamjok, you are right that LD50 does not reflect long term toxicity effects. Perhaps in hind sight, a longer and more rigidly constructed version to explain this issue in this forum should have been adopted. But as you have mentioned the nature of how some monikers treat this forum, that sometimes raises reservations.
I am sure you are a learned man on this subject matter and perhaps could help better educate forumers here about food safety. The point is to educate forumers here not to confuse political rhetoric and personal grievances against the government, with
the understanding of the scientific issues and problems involved. Changing governments does not change the scientific issues and problems involved. If our opposition were to lead the next parliament tomorrow, the food safety problems would still be the same. If our forummers are not educated about these issues, unhelpful blame games will continue without benefiting the welfare of Singaporeans.
Institutions have to evolve and adapt as new scientific results change previous preconceptions. But institutions, including countries are made of people and people should also evolve and think objectively and constructively. Singapore is trying and practising greater degrees of democracy and freedom. It would be most unfortunate for Singapore to move back to stricter control of speech and action of Singaporeans, if that is deemed as the best approach to ensure the best possible welfare for the people. Democracy by itself is never known to feed anyone. However, if the Singapore economy is to move to another higher level, more freedom that facilitates constructive thinking is necessary, for opportunities of more value creation.
What was intended was to highlight the known inherent weakness of LD50 tests. It only reflects short term adverse effects. Long term adverse effects are difficult and costly to study and, thus, even less studied. LD50 tests are usually limited to a single chemical compound test. Thus, the effects of different chemical interactions we are exposed to which constitutes a lethal dosage are more difficult and costlier to ascertain.
If moniker Vamjok has better insights on the issue of food safety and the current vulnerability that everyone in the world has to contend with, it would be most appreciated if you could share them in this forum. As far as I understand about the pervasiveness of POPs and the possible harm they can cause to humans, there is virtually no place in the world one can migrate or escape to, to avoid its presence. I am sure moniker Vamjok is a moniker who supports freedom that promotes constructive and objective thought and expression.