Scientists have identified more than 3,000 potentially harmful chemicals that can be found in food packaging and other food-related materials, two-thirds of which were not previously known to be in contact with food.
An international group of scientists analyzed more than 1,200 scientific studies where chemicals had been measured in food packaging, processing equipment, tableware and reusable food containers.
A report released on Thursday by the Food Packaging Forum, a Switzerland-based non-profit, noted little is known about many of the 3,240 chemicals examined in these studies or their effects on people.
Just one-third of the chemicals studied appeared in a previously compiled database of more than 12,000 chemicals associated with the manufacturing of food contact materials.
in contact with：片語，與…接觸。例句：I’m still in contact with my friends from college.（我跟大學的朋友還有在聯絡。）
(to be) associated with：指與…有關、與…連結在一起，被動語態居多。例句：Rainfall is associated with humidity.（下雨和溼度有關。）