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. 2024 May 21;35(3):342–350. doi: 10.1038/s41370-024-00686-7

Table 1.

XRF and leachate results for aluminum and brass cookware.

Pot # Description Primary material Country of origin Median Pb level (XRF, ppm) Range of Pb levels (XRF, ppm) Lead leachate conc. at 15 min (μg/mL) Lead dose/serving at 15 min (μg/250 mL) Lead leachate conc. at 24 h (μg/mL) Lead dose/serving at 24 h (μg/250 mL)
50 Idli maker Hindalium/indolium India 626 (81, 1463) 0.0182 4.55b 0.132 33c
51 Kadai Brass India 5049 (128, 47,191) 0.766 192c 1.34 335c
52 Uruli/kadai Hindalium/indolium India 256 (103, 290) 0.00434 1.09 0.0268 6.7b
53 Tadka pan Hindalium/indolium India 290 (0, 306) 0.00389 0.973 0.135 33.8c
54 Appam pan Hindalium/indolium India 716 (603, 794) 0.0144 3.6b 12.3 3080c
55 Kadai Hindalium/indolium India 756 (15, 813) 0.0245 6.13b 0.926 232c
56 Unknown Hindalium/indolium India 517 (362, 636) 0.0157 3.93b 1.05 263c
57 Caldero Aluminum alloy Colombia 13 (0, 71) 0.00092 0.23 0.0185 4.63b
58 Idli maker Food-grade aluminum India 715 (308, 1327) 0.028 7b 0.27 67.5c
59 Caldero Aluminum alloy Colombia 8a (0, 15) 0.00075 0.188 0.0157 3.93b
60 Caldero Aluminum alloy Colombia 9a (0, 15) 0.0006 0.15 0.0167 4.18b
61 Caldero Aluminum alloy Colombia 7a (0, 17) 0.0006 0.15 0.0149 3.73b
62 Kadai Hindalium/indolium India 528 (0, 624) 0.0457 11.4c 1.36 340c
80 Stock pot Aluminum alloy Unknown 9 (0, 38) 0.00005 0.0125 0.00023 0.0575
81 Cookpot Aluminum alloy Thailand 14 (0, 27) 0.00183 0.458 0.0154 3.85b
82 Stock pot Aluminum alloy USA 11a (0, 19) 0.0001 0.025 0.00187 0.468
83 Stock pot Aluminum alloy USA 51 (0, 83) 0.00014 0.035 0.0007 0.175
84 Dutch oven Aluminum alloy USA 0a (0, 17) 0.00083 0.208 0.00255 0.638
85 Stock pot Aluminum alloy El Salvador 15 (0, 27) 0.00118 0.295 0.0105 2.63b
86 Pressure cooker Aluminum alloy China 8a (0, 147) 0.00053 0.133 0.004 0.898
87 Stock pot Aluminum alloy USA 11a (0, 15) 0.00014 0.035 0.003 0.793
88 Stock pot Aluminum alloy China 50 (0, 94) 0.00105 0.263 0.010 2.55b
89 Cookpot Aluminum alloy China 93 (0, 26) 0.00045 0.113 0.001 0.243
90 Cookpot Aluminum alloy Vietnam 0a (0, 34) 0.00012 0.03 0.0003 0.0825
91 Cookpot Aluminum alloy China 0a (0, 20) 0.00013 0.0325 0.00024 0.06
92 Cookpot Aluminum alloy China 13 (0, 26) 0.013 3.25b 0.0207 5.18b
93 Pressure cooker Aluminum alloy Afghanistan 538 (0, 48,193) 0.183 45.8c 3.96 990c
94 Pressure cooker Aluminum alloy Afghanistan 605 (0, 64,852) 0.194 48.5c 4.63 1158c
95 Pressure cooker Aluminum alloy Afghanistan 548 (0, 51,021) 0.131 32.8c 3.12 780c
96 Wok Brass Thailand 0a (0, 0) 0.00455 1.13 0.00549 1.38
97 Sauce pan Brass India 0a (0, 1182) 0.079 19.8c 0.129 32.3c
98 Tope Brass India 1343 (1012, 1544) 0.418 105c 0.728 182c
100 Pital pot Brass India 3611 (2859, 4585) 5.72 1430c 10.8 2700c

aMore than 50% of XRF measurements <LOD.

bEstimated dose ≥ child IRL (2.2  µg/day) and <adult IRL (8.8  µg/day).

cEstimated dose ≥ adult IRL (8.8  µg/day).