Study of Selected Metals Distribution, Source Apportionment, and Risk Assessment in Suburban Soil, Pakistan

Table 1

Metal concentrations (mg/kg) and recoveries (%) in standard reference material (SRM-2711).

Metal	Certified concentration (mg/kg)	Measured concentration (mg/kg)	Recovery (%)
Cd	41.7	40.98	98
Co	10	9.7	97
Cr	47	47.56	101
Cu	114	112.3	99
Fe	28900	27601	96
Mn	638	642	101
Pb	1162	1180	102
Sr	245.3	241.7	99
Zn	350.4	341	97