Initiatives to reduce lead from electronic devices: evidence of success from the toxicity characteristic leaching procedure

Figures & data

Table 1. Number of electronic devices tested.

	Number of Devices tested
Devices	Recent Study (2004) [2, 3]	2000–2005	2006–2007	after 2008
Cell phones	38	34	26	9
Remote Controls	5	6	3	5
Computer Mice	15	5	5	5
Smoke Detectors	10	3	3	10
Keyboards	5	4	4	4
PCs ^a	41	16	12	14
Laptops ^a	9	7	5	5
Computer Monitors Flat screen ^a	9	4	3	3
Printers ^a	10	5	4	7

Note: ^a Tested using the modified large-scale TCLP.

Figure 1. TCLP lead concentrations for cell phones manufactured during different time periods. Error bars represent standard deviations.

Figure 2. TCLP lead concentrations for PCs manufactured during different time periods; modified TCLP utilized. Error bars represent standard deviations.