The potential for any risks to health are assessed by comparing the dietary exposure to heavy metals with the appropriate safe exposure levels - provisional tolerable weekly intakes ptwis recommended by the joint fao who expert committee on food additives jecfa 我们把从食物摄取到重金属的分量，与粮食及农业组织世界?生组织联合食物添加剂专家委员会jecfa所建议的适当安全摄取量暂定每周可容忍摄入量
2.
The potential for any risks to health are assessed by comparing the dietary exposure to heavy metals with the appropriate safe exposure levels - provisional tolerable weekly intakes ( ptwis ) recommended by the joint faowho expert committee on food additives ( jecfa ) 我们把从食物摄取到重金属的分量，与粮食及农业组织世界?生组织联合食物添加剂专家委员会( jecfa )所建议的适当安全摄取量暂定每周可容忍摄入量
