Foodstuff (study)		Element/concentration
Cereals (wheat, maize, legume) (Zhuang et al., 2017)		REEs: Ce, La, Nd > 90% of total REE for mining area + Gd, Y Mining area 74.22 μg/kg Control area 47.83 μg/kg
Survey in the major foods in China (Jiang et al., 2012)	Cereals Fresh vegetables	Total REEs 0.039 mg/kg 0.052 mg/kg
Survey of food crop categories: Fruits, Legumes, Vegetables (leafy & roots) (Howe et al., 2005)		Ce: 0.24 mg/kg (Callaloo) Eu: 2.8 μg/kg (red kidney beans) La: 0.35 mg/kg (Callaloo) Sc: 21 μg/kg (Turnip) Sm: 27 μg/kg (Callaloo)
Baby food (Ruiz‐de‐Cenzano et al., 2017)	Puree of fruits (100 g/100 g), (peach, banana and grape juice from concentrate), corn starch and vitamin C	Te: 2 μg/kg (fw)
	Green beans (40%), skimmed milk (32%), potatoes (27%), onion, milk cream (3%)	Te: 2.94 μg/kg (fw)
	Skimmed milk (32%), water, beans (14%), peas (10%), onion (5%), pasta (4%), rice	Te: 2.45 μg/kg (fw)
	Potatoes, skimmed milk, monkfish (10%), tomato, onion, butter, celery	Te: 2.58 μg/kg (fw)
Survey in Italian population (Filippini et al., 2019)	Cereals and cereal products All vegetables Legumes Potatoes Fresh fruits Dry fruits, nuts, seeds	Te (mg/kg): 0.168 0.246 0.382 0.189 0.185 1.072	Tl (mg/kg): 0.055 0.256 0.001 0.046 0.001 0.648
Pyrite mining area: upstream, midstream and downstream zones (Liu et al., 2019)
Green cabbage		Tl: 0.85 ± 0.04 mg/kg
Sweet potato		Tl: 2.78 ± 0.12–0.31 ± 0.01 mg/kg
Tl‐rich sulfide mineralisation area (Xiao et al., 2014)
Green cabbage		Tl: 338 mg/kg
Carrot		Tl: 22.1 mg/kg
Shelled rice		Tl: 2.4 mg/kg
Waste water‐irrigated vegetables (Wang et al., 2013)
Sweet potato		Tl: 176.7 mg/kg DW
Green cabbage		Tl: 110 mg/kg DW
Soya beans		Tl: 51.2 mg/kg DW
Eggplant		Tl: 56.3 mg/kg DW
Lettuce		Tl: 22.2 mg/kg DW