[Public] Leaching rate calculation based on Weidenhamer et al. (2017)

	A	B	C	D	E	F	G	H	I	J	K	L	M
1	Data from Table 1 and Table 2 in Weidenhamer et al. (2017) - Metal exposures from aluminum cookware: An unrecognized public health risk in developing countries
2
3			Lead in pots without boiling		Lead in serving after boiling (microgram per serving of 250 mL)
4	Country of origin	Item	Lead in %	Lead in ppm	Boil 1	Boil 2	Boil 3	Boil 4	Boil 5	Avrg of all boils (in ug/mL)	Avrg of all boils (in ppm)*	Leaching rate**
5	Bangladesh	A	0.03	280	2.0					2	0.00800	0.00003
6	Bangladesh	B	0.11	1080	0.0	0.0	0.0			0	0.00000	0.00000
7	Bangladesh	C	0.16	1570	0.0	0.0	0.0			0	0.00000	0.00000
8	Bangladesh	D	0.13	1320	0.0	0.0	0.0			0	0.00000	0.00000
9	Guatemala	A	0.07	670	1.3					1	0.00520	0.00001
10	Guatemala	B	0.05	460	0.0					0	0.00000	0.00000
11	Guatemala	C	0.09	860	1.7					2	0.00680	0.00001
12	Guatemala	D	0.10	1000	0.0					0	0.00000	0.00000
13	India	A	0.00	0	0.0					0	0.00000	N/A
14	India	B	0.26	2620	0.0					0	0.00000	0.00000
15	India	C	0.63	6300	0.0					0	0.00000	0.00000
16	Indonesia	A	0.00	0	0.0					0	0.00000	N/A
17	Indonesia	B	0.27	2690	177.0	19.0	0.0			65	0.26133	0.00010
18	Indonesia	C	0.00	0	0.0					0	0.00000	N/A
19	Ivory Coast	A	0.06	620	19.0	0.0	29.0			16	0.06400	0.00010
20	Ivory Coast	B	0.02	240	0.0	0.0	0.0			0	0.00000	0.00000
21	Ivory Coast	C	0.09	850	0.0					0	0.00000	0.00000
22	Ivory Coast	D	0.06	570	0.0					0	0.00000	0.00000
23	Kenya	A	0.06	570	0.0					0	0.00000	0.00000
24	Kenya	B	0.04	380	0.0					0	0.00000	0.00000
25	Kenya	C	0.00	0	0.0					0	0.00000	N/A
26	Kenya	D	0.06	610	0.0					0	0.00000	0.00000
27	Nepal	A	0.05	530	0.0					0	0.00000	0.00000
28	Nepal	B	0.03	340	0.0					0	0.00000	0.00000
29	Nepal	C	0.09	860	0.0					0	0.00000	0.00000
30	Nepal	D	0.04	370	11.0	0.0	0.0			4	0.01467	0.00004
31	Nepal	E	0.30	3020	0.0					0	0.00000	0.00000
32	Philippines	A	0.09	860	15.0	32.0	0.0			16	0.06267	0.00007
33	Philippines	B	0.03	270	0.0					0	0.00000	0.00000
34	Philippines	C	0.04	410	0.0					0	0.00000	0.00000
35	Philippines	D	0.07	660	19.0	0.0	0.0			6	0.02533	0.00004
36	Philippines	E	0.07	720	13.0	0.0	406.0	0.0	0.0	84	0.33520	0.00047
37	Tanzania	A	0.00	0	5.3	0.0	4.8			3	0.01347	N/A
38	Tanzania	B	0.00	0	0.0	0.0	0.0			0	0.00000	N/A
39	Tanzania	C	0.06	620	0.0					0	0.00000	0.00000
40	Viet Nam	A	0.05	520	1.0					1	0.00400	0.00001
41	Viet Nam	B	0.71	7070	0.0					0	0.00000	0.00000
42	Viet Nam	C	0.00	0	32.0	18.0	0.0			17	0.06667	N/A
43	Viet Nam	D	0.70	7000	33.0	1126.0	1426.0			862	3.44667	0.00049
44	Viet Nam	E	0.36	3570	20.0	5.9	14.0			13	0.05320	0.00001
45	Viet Nam	F	0.48	4750	1.5					2	0.00600	0.00000
46	Viet Nam	G	0.00	0	0.0					0	0.00000	N/A
47												0.00004	Average leaching rate
48	* A solution of 250 mL with 4% acetic acid weighs approximately 250g. 1 ug/g corresponds to 1 ppm. Thus, 1 ug/250g corresponds to 0.004 ppm.
49	** Leaching rate is N/A if ppm in original pot without boiling is below limit of detection.
50	Note: We assume that lead below the limit of detection corresponds to 0 ppm.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100