Incidental constituents (commonly referred to as "contaminants") are substances that are present in food as a result of the production (e.g, crop husbandry), manufacture, treatment, packing, packaging, transport or holding of such food, or as a result of environmental contamination.
The limits for the various types of incidental constituents are as follows:
(i) Singapore's regulatory limits
(ii) Codex MRLs (if there are no regulatory limits specified under i)