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,
50th percentile,15,3.5,2.6,2.2,1.6,1.6,
90th percentile,25,9.4,7.1,4.8,4.2,3.9,
"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, 2001-2004.",,,,,,,
,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,1.6,2.3,1.7,1.3,1.4,1.8,
White Non-Hispanic,1.5,2.1,1.6,1.3,1.3,1.5,
Black Non-Hispanic,2.5,2.9,2.2,1.9,2,2.3,
Mexican-American,1.6,2,1.6,1.2,1.5,1.9,
Other†,1.7,2.3,1.7,1.4,1.4,2.6,
,,,,,,,
"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, 2001-2004.",,,,,,,
,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,4,5.4,4.1,2.6,3.2,4.2,
White Non-Hispanic,3.5,4.4,4,2.4,3,NA**,
Black Non-Hispanic,6.4,7.5,5.1,4.3,4.8,10.2,
Mexican-American,3.5,4,3.6,2.7,3.2,2.8,
Other†,4.2,6.2,4.3,2.2,2.8,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, 2001-2004.",,,,,,,
Blood lead concentrations (µg/dL),,,,,,,
 < 1, 1-2, 2-3 , 3-4 , 4-5 , 5-6, 6-7, > 7
17%,44%,21%,8%,4%,2%,2%,3%
"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, 1999-2002",,,,,,,
Blood mercury concentrations (parts per billion),,,,,,,
 < 1, 1-2, 2-3 , 3-4 , 4-5 , 5-6, 6-7, > 7
56%,25%,9%,5%,2%,1%,1%,2%
"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, 2001-2004.",,,,,,,
Race / Ethnicity,All,< Poverty Level,100-200% of Poverty Level,> 200% of Poverty Level,>= Poverty Level,Unknown Income,
All Races/Ethnicities,0.8,0.7,0.7,1,0.9,0.8,
White Non-Hispanic,0.8,0.6,0.5,0.9,0.8,0.9,
Black Non-Hispanic,1.1,0.9,1,1.3,1.1,1.5,
Mexican-American,0.7,0.6,0.7,0.8,0.7,0.7,
Other†,1.1,0.8,0.9,1.5,1.3,0.6*,
,,,,,,,
"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 because it is based on a small number of persons (relative standard error is greater than 30 percent and less 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, 2001-2004.",,,,,,,
,,,,,,,
Race / Ethnicity,All,< Poverty Level,100-200% of Poverty Level,> 200% of Poverty Level,>= Poverty Level,Unknown Income,
All Races/Ethnicities,3.1,2.2,2.4,3.6,3.3,3,
White Non-Hispanic,3,1.7,1.9,3.4,3.2,2.8,
Black Non-Hispanic,3.2,2,3,3.5,3.3,NA**,
Mexican-American,2,1.6,1.8,3.2,2.2,2.3*,
Other†,4.4,3.6,4.7,5.7,5,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 because it is based on a small number of persons (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 because it is based on a small number of persons (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, 2001-2004",,,,,,,
,,,,,,,
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 because it is based on a small number of persons (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).,,,,,,,