Risk Analysis And Exposure Assessment Principles Applied Research In The Pollutant Limits

[Object] Compare maxium limited standards (MLs) for contaminants in foods of our country and Codex MLs, in order to provide evidence and reference for establishing and revising the MLs for food contaminants of our country. [Method] (1) Collect relevant information including MLs for food contaminants of our country and Codex MLs, and JECFA's evaluations on foodcontaminats. (2) Compare the standards according to the condition of every contaminant. (3) Analysis JECFA's evaluations on food contaminats. [Result] (1) There were 20 standards in China involved 20 kinds of food contaminants, but there was only one standard involved 16 kinds of food contaminants for Codex MLs. (2) Three conditions, i.e. the same MLs in both Chinese and Codex standards, or the MLs of our country were stricter than Codex MLs or an adverse condition, was existed for different contaminants. The MLs in our country of lead in most foods were higher than Codex MLs, while the MLs of cadium in most foods were lower than Codex MLs. (3) The PTWI posed by JECFA's new evaluations for lead, arsenic, methylmercury, cadium, aflatoxin and patulin were all lower than before. [Conclusion] (1) According to the results of our study, it is suggested that the 20 standards of our country should be incorporate into one standard as Codex, and the food classification also should be revised reference to Codex. (2) The MLs for lead, arsenic, methylmercury, cadium, aflatoxin and patulin in food should be important items concerned.