Assessment of Some Heavy Metals Pollution and Bioavailability in Roadside Soil of Alexandria-Marsa Matruh Highway, Egypt

Table 4

Summary statistics of bioavailable fractions of Pb and Cd and their percent.

Parameter	Pb		Cd
	g/g	%	g/g	%
Mean	26.8	72.5	0.82	37.5
Median	27.6	73.9	0.76	34.4
Standard deviation	6.5	19.5	0.23	14.7
Range	32.1	57.2	0.98	53.1
Minimum	13.5	41.3	0.50	21.3
Maximum	45.6	98.5	1.48	74.4
1st quartile	22.6	57.0	0.7	26.7
3rd quartile	31.3	91.9	0.2	43.9