Table 4: USEPA TCLP test results (ppm) and the maximum concentration of contaminants for toxicity characteristics of fired clay and fired clay-OSA bricks.

Component (ppm)CC-10OSAC-20OSAC-30OSAUSEPA regulated TCLP limits (ppm)

As0.0270.0610.0280.0155
Ba0.2040.2250.5580.188100
Cd0.00030.000200.000120.000081
Co0.0100.00840.00130.0010
Cr0.5540.2970.2820.2345
Cu0.2960.4670.9860.3305
Ni0.0470.0700.0120.0004
Pb0.00090.000430.0870.000195
Sb0.00100.00360.00980.0057
Se0.0130.0180.00310.00321
Sn0.000140.000180.000160.00012
V0.1610.3510.2000.115
Hg0.000040.000090.000110.000090.2
Zn0.0580.0120.0050.006300