Table B1: Concentrations of lead in blood of children ages 5 and under,,,,,,,
,,,,,,,
,Blood lead concentrations (µg/dL),,,,,,
,1976-1980,1988-1991,1992-1994,1999-2000,2001-2002,2003-2004,2005-2006
50th percentile,15,3.5,2.6,2.2,1.6,1.6,1.4
90th percentile,25,9.4,7.1,4.9,4.2,3.9,3
"DATA: Centers for Disease Control and Prevention, National Center for Health Statistics, National Health and Nutrition Examination Survey",,,,,,,
,,,,,,,
"Table B2. Median concentrations of lead in blood (µg/dL) of children ages 1-5, by race/ethnicity and family income, 2003-2006.",,,,,,,
,Blood lead concentrations (µg/dL),,,,,,
Race / Ethnicity,All Incomes,< Poverty Level,100-200% of Poverty Level,> 200% of Poverty Level,>= Poverty Level,Unknown Income,
All Races/Ethnicities,1.6,2,1.6,1.3,1.4,1.8,
White Non-Hispanic,1.4,1.8,1.5,1.3,1.3,1.5,
Black Non-Hispanic,2.3,2.6,2,1.9,2,2.7,
Mexican-American,1.5,1.7,1.6,1.1,1.4,1.6,
Other†,1.7,2,1.6,1.1,1.3,2,
,,,,,,,
"DATA: Centers for Disease Control and Prevention, National Center for Health Statistics, National Health and Nutrition Examination Survey",,,,,,,
,,,,,,,
"† ""Other"" includes Non-Hispanic Asian; Non-Hispanic Native American; those reporting multi-racial; and those with a missing value for race/ethnicity.",,,,,,,
,,,,,,,
"Addendum 1 to Table B2. 90th Percentile concentrations of lead in blood (µg/dL) of children ages 1-5, by race/ethnicity and family income, 2003-2006.",,,,,,,
,Blood lead concentrations (µg/dL),,,,,,
Race / Ethnicity,All Incomes,< Poverty Level,100-200% of Poverty Level,> 200% of Poverty Level,>= Poverty Level,Unknown Income,
All Races/Ethnicities,3.5,4.6,3.6,2.7,2.9,4,
White Non-Hispanic,2.8,4,3.5,2.5,2.7,NA**,
Black Non-Hispanic,5.5,6.9,4.4,3.9,4.3,16.3,
Mexican-American,3.2,3.8,3.3,2.6,2.9,3.2,
Other†,3.9,4.8,3.6,2.2,2.8,NA**,
,,,,,,,
"DATA: Centers for Disease Control and Prevention, National Center for Health Statistics, National Health and Nutrition Examination Survey",,,,,,,
,,,,,,,
"† ""Other"" includes Non-Hispanic Asian; Non-Hispanic Native American; those reporting multi-racial; and those with a missing value for race/ethnicity.",,,,,,,
,,,,,,,
** Estimate is considered unreliable (relative standard error is greater than 40 percent).,,,,,,,
,,,,,,,
"Table B3: Distribution of concentrations of lead in blood (µg/dL) of children ages 1-5, 2003-2006.",,,,,,,
Blood lead concentrations (µg/dL),,,,,,,
 < 1, 1-2, 2-3 , 3-4 , 4-5 , 5-6, 6-7, > 7
20%,46%,19%,7.00%,3.00%,1.00%,0.85%,2.00%
"DATA: Centers for Disease Control and Prevention, National Center for Health Statistics, National Health and Nutrition Examination Survey",,,,,,,
,,,,,,,
"Table B4: Distribution of concentrations of mercury in blood of women of child-bearing age, 2003-2006.",,,,,,,
Blood mercury concentrations (parts per billion),,,,,,,
 < 1, 1-2, 2-3 , 3-4 , 4-5 , 5-6, 6-7, > 7
55%,26%,8.2%,4.3%,2.5%,1.4%,1.0%,1.6%
"DATA: Centers for Disease Control and Prevention, National Center for Health Statistics, National Health and Nutrition Examination Survey",,,,,,,
,,,,,,,
"Addendum 1 to Table B4. Median concentrations of mercury in blood (ppb) of women of child-bearing age (16-49), by race/ethnicity and family income, 2003-2006.",,,,,,,
Race / Ethnicity,All,< Poverty Level,100-200% of Poverty Level,> 200% of Poverty Level,>= Poverty Level,Unknown Income,
All Races/Ethnicities,0.9,0.7,0.8,1,0.9,0.7,
White Non-Hispanic,0.8,0.6,0.7,0.9,0.9,0.7,
Black Non-Hispanic,1,0.9,0.9,1.1,1,1.6,
Mexican-American,0.7,0.6,0.7,0.8,0.8,0.7,
Other†,1.3,1.1,1.3,1.5,1.4,NA**,
,,,,,,,
"DATA: Centers for Disease Control and Prevention, National Center for Health Statistics, National Health and Nutrition Examination Survey",,,,,,,
,,,,,,,
"† ""Other"" includes Non-Hispanic Asian; Non-Hispanic Native American; those reporting multi-racial; and those with a missing value for race/ethnicity.",,,,,,,
,,,,,,,
* Estimate is unstable (relative standard error is greater than 30 percent and less than 40 percent).,,,,,,,
,,,,,,,
**Estimate is considered unreliable (relative standard error is greater than 40 percent).,,,,,,,
,,,,,,,
"Addendum 2 to Table B4. 90th Percentile concentrations of mercury in blood (ppb) of women of child-bearing age (16-49), by race/ethnicity and family income, 2003-2006.",,,,,,,
,,,,,,,
Race / Ethnicity,All,< Poverty Level,100-200% of Poverty Level,> 200% of Poverty Level,>= Poverty Level,Unknown Income,
All Races/Ethnicities,3.1,2,2.7,3.4,3.2,2.6,
White Non-Hispanic,3.1,1.7,2.3,3.5,3.3,2.2,
Black Non-Hispanic,2.8,2,2.8,3.4,3.2,NA**,
Mexican-American,1.8,1.5,1.8,2.2,1.9,2.2,
Other†,4.2,3.8*,4.7,4.2,4.2,NA**,
,,,,,,,
"DATA: Centers for Disease Control and Prevention, National Center for Health Statistics, National Health and Nutrition Examination Survey",,,,,,,
,,,,,,,
"† ""Other"" includes Non-Hispanic Asian; Non-Hispanic Native American; those reporting multi-racial; and those with a missing value for race/ethnicity.",,,,,,,
,,,,,,,
* Estimate is unstable (relative standard error is greater than 30 percent and less than 40 percent).,,,,,,,
,,,,,,,
** Estimate is considered unreliable (relative standard error is greater than 40 percent).,,,,,,,
,,,,,,,
Table B5: Concentrations of cotinine in blood of children.,,,,,,,
,Serum cotinine concentrations (ng/mL),,,,,,
,1988-1991,1999-2000,2001-2002,2003-2004,2005-2006,,
90th percentile,2.2,1.8,1.9,1.8,1.2,,
50th percentile,0.25,0.11,0.059,0.096,0.047,,
"DATA: Centers for Disease Control and Prevention, National Center for Health Statistics, National Health and Nutrition Examination Survey",,,,,,,
,,,,,,,
"Addendum 1 to Table B5. Median concentrations of cotinine in blood (ng/mL) of children ages 3 to 17, by race/ethnicity and family income, 2003-2006.",,,,,,,
,,,,,,,
Race / Ethnicity,All,< Poverty Level,100-200% of Poverty Level,> 200% of Poverty Level,>= Poverty Level,Unknown Income,
,,,,,,,
All Races/Ethnicities,0.065,0.24,0.12,0.038,0.052,0.075*,
White Non-Hispanic,0.069,0.61,NA**,0.042,0.055,0.087*,
Black Non-Hispanic,0.22,0.51,0.21,0.057,0.1,0.15,
Mexican-American,0.03,0.039,0.027,0.023,0.025,0.023,
Other†,0.046,NA**,NA**,0.03,0.039,NA**,
"DATA: Centers for Disease Control and Prevention, National Center for Health Statistics, National Health and Nutrition Examination Survey",,,,,,,
,,,,,,,
NOTE: Based on children aged 3 to 17 with cotinine < 10 ng/mL.,,,,,,,
,,,,,,,
"† ""Other"" includes Non-Hispanic Asian; Non-Hispanic Native American; those reporting multi-racial; and those with a missing value for race/ethnicity.",,,,,,,
,,,,,,,
* Estimate is unstable (relative standard error is greater than 30 percent and less than 40 percent).,,,,,,,
,,,,,,,
** Estimate is considered unreliable (relative standard error is greater than 40 percent).,,,,,,,
,,,,,,,
"Addendum 2 to Table B5. 90th Percentile concentrations of cotinine in blood (ng/mL) of children ages 3 to 17, by race/ethnicity and family income, 2003-2006.",,,,,,,
,,,,,,,
Race / Ethnicity,All,< Poverty Level,100-200% of Poverty Level,> 200% of Poverty Level,>= Poverty Level,Unknown Income,
,,,,,,,
All Races/Ethnicities,1.6,2.8,2.1,0.76,1.2,NA**,
White Non-Hispanic,1.8,4.2,2.7,0.88,1.3,NA**,
Black Non-Hispanic,2.1,2.7,1.9,0.97,1.4,2.6,
Mexican-American,0.35,0.49,0.27*,0.29,0.28,NA**,
Other†,1.3,3.2,1.1,NA**,0.61*,NA**,
,,,,,,,
"DATA: Centers for Disease Control and Prevention, National Center for Health Statistics, National Health and Nutrition Examination Survey",,,,,,,
,,,,,,,
NOTE: Based on children aged 3 to 17 with cotinine < 10 ng/mL.,,,,,,,
,,,,,,,
"† ""Other"" includes Non-Hispanic Asian; Non-Hispanic Native American; those reporting multi-racial; and those with a missing value for race/ethnicity.",,,,,,,
,,,,,,,
* Estimate is unstable (relative standard error is greater than 30 percent and less than 40 percent).,,,,,,,
,,,,,,,
** Estimate is considered unreliable (relative standard error is greater than 40 percent).,,,,,,,