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

Table 2.

XRF and leachate results for stainless steel cookware.

Pot #	Description	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)
63	Pressure cooker	India	1^a	(0, 55,009)^b	0.0003	0.075	0.00056	0.14
64	Pressure cooker	India	27^a	(0, 53,294)^b	0.00143	0.358	0.00159	0.398
65	Pressure cooker	Unknown	20^a	(0, 70)	0.00015	0.0375	0.00018	0.045
66	Stock pot	China	5^a	(0, 79)	0.00013	0.0325	0.00015	0.0375
67	Sauce pan	China	11^a	(0, 53)	0.00022	0.055	0.00026	0.065
68	Frying pan	China	17^a	(0, 46)	0.0006	0.15	0.00064	0.16
69	Sauté pan	China	11^a	(0, 62)	0.00024	0.06	0.00024	0.065
70	Stock pot	China	36^a	(0, 75)	0.00011	0.0275	0.00012	0.03
71	Sauce pan	China	17^a	(0, 97)	0.00024	0.060	0.00026	0.065
72	Sauce pan	China	22^a	(0, 69)	0.00033	0.0825	0.00036	0.09
73	Stock pot	Unknown	0^a	(0, 67)	0.0003	0.075	0.0003	0.075
74	Sauce pan	Unknown	0^a	(0, 41)	0.00023	0.0575	0.00026	0.065
75	Sauce pan	Unknown	0^a	(0, 58)	0.00069	0.173	0.00075	0.188
76	Skillet	Unknown	0^a	(0, 28)	0.00088	0.22	0.0009	0.225
77	Pressure cooker	India	8^a	(0, 4124)^b	0.00164	0.41	0.00208	0.52
78	Pressure cooker	India	17^a	(0, 4040)^b	0.00031	0.0775	0.00163	0.408
99	Pressure cooker (electric)	China	15^a	(0, 87)^b	0.00021	0.0525	0.00025	0.0625

^aMore than 50% of XRF measurements <LOD.

^bHighest lead concentration detected in the pressure cooker vent pipe.