Sampled area | Locations (UK) | Soil lead mg kg-1 dwt | Â | Vegetable lead mg kg-1 fwt | References | ||||
---|---|---|---|---|---|---|---|---|---|
 | Area | Mean/median | Range | n | Vegetable/fruit | Mean | Range | n | Soils/vegetables |
Agricultural soils | England & Wales Soil (5 km grid), Food from UK shops. | 74 (Med) | NR | 5692 | Root vegetables Greens Potatoes Others | 0.05 (M) 0.004 (M) 0.003 (M) 0.013 (M) | <0.05-0.28 NR NR NR | 120 24 24 24 | [9] [9] [9] |
Urban garden soils | 50 cities, towns or villages. | 266 (GM) | 13-14100 | 4127 | NR | NR | NR | NR | [2] |
Urban allotment and vegetable plot soils | 9 cities and towns. | 217 (GM) | 27-1676 | 94 | Lettuce Spinach Cabbage Broccoli Carrot Parsnip | 0.05 (GM) 0.14 (GM) 0.20 (GM) 0.21 (GM) 0.10 (GM) 0.13 (GM) | <0.02-0.31 <0.02-1.69 0.06-1.54 0.06-1.01 0.02-0.33 <0.02-0.62 | 78 80 82 82 78 84 | |
Urban allotment soils | 6 cities | 464 (M) | NR | 52 | Brassicas Legumes Potatoes Onions Soft Fruits All fruit and veg | 0.008 (M) 0.009 (M) 0.009 (M) 0.007 (M) 0.017 (M) 0.010 (M) | NR NR NR NR NR <0.005-0.07 | 68 37 72 37 36 251 | |
Contaminated allotment soils (Case study 1) | Newcastle Walker Rd | 1200 (M) | 490-1900 | 25 | Swede, turnip, beetroot, potatoes | <0.026 (M) | <0.001-0.13 | 11 | |
Contaminated allotment soils (Case study 2) | London, location undisclosed | 1050 (GM) | 513-2910 | 11 | Cabbage Carrots, parsnip, beetroot, potatoes | 1.83 (M) 2.82 (M) | 0.18-3.58 0.87-5.35 | 4 5 |