BMC Public Health

Table 8 Frequencies of child blood As levels at Time I and II (N = 204)

From: A comparison of arsenic exposure in young children and home water arsenic in two rural West Texas communities

Time I					Time II
As range (μg/dL)	Freq	Freq %	Cumul Freq	Cumul Freq %	Freq	Freq %	Cumul Freq	Cumul Freq %
2.800–2.999	0	0.0	204	100.0	0	0.0	204	100.0
2.600–2.799	1	0.5	204	100.0	0	0.0	204	100.0
2.400–2.599	1	0.5	203	99.5	0	0.0	204	100.0
2.200–2.399	2	1.0	202	99.0	0	0.0	204	100.0
2.000–2.199	0	0.0	200	98.0	1	0.5	204	100.0
1.800–1.999	7	3.4	200	98.0	0	0.0	203	99.5
1.600–1.799	7	3.4	193	94.6	0	0.0	203	99.5
1.400–1.599	14	6.9	186	91.2	0	0.0	203	99.5
1.200–1.399^a	26	12.7	172	84.3	1	0.5	203	99.5
1.000–1.199	23	11.3	146	71.6	4	2.0	202	99.0
0.800–0.999	28	13.7	123	60.3	11	5.4	198	97.1
0.600–0.799	42	20.6	95	46.6	14	6.9	187	91.7
0.400–0.599	34	16.7	53	26.0	66	32.4	173	84.8
0.200–0.399	13	6.4	19	9.3	81	39.7	107	52.5
0.000–0.199	6	2.9	6	2.9	26	12.7	26	12.7
Total	204	100.0	204	100.0	204	100.0	204	100.0

^a 1.2 μg/dL, CDC allowable As blood limit

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