Table 2.

Descriptive data for soil, turf, and dust collected at child care and recreational surfaces in Clark County, Nevada, 2008.

	Mean	Median	Mode	SD	Minimum	Maximum	n
Dusta,b	32.18	24	20	17.5	20	81	61
Dusta,c	20.4	10	10	16.18	10	81	132
Soilb	10.41	10	10	3.28	7	18	17
Soilc	9.66	10	10	3.83	3	18	19
Turfb	3,353	3,100	10	3,402	10	8,800	10
Turfc	3,048	1,100	3.5	3,382	3.5	8,800	11

Abbreviations: Max, maximum; Min, minimum. Data are from Table 1, surfaces 20–29. Samples below the LOD were assigned a value of half the LOD to demonstrate the number of samples collected compared with those that contained detectable concentrations of lead.

^aLOD ranged from 10–20 μg/cm² depending on sample size.

^bSummary of samples that tested above the LOD.

^cSummary of all samples collected.