Results

Chemical Group:Metals

• Measured in: Blood

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 1

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
Mercury Mercury µg/L 96 3.58 3.01 4.26 2.47 4.12 7.13 9.24 100% 0.150

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 2

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
Mercury Mercury µg/L 99 4.77 4.13 5.51 3.22 5.18 8.04 9.99 100% 0.0750

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Mercury Mercury µg/L 110 0.748 0.602 0.929 0.370 0.745 1.79 4.26 99.1% 0.04 µg/L

Project: Biomonitoring Exposures Study (BEST) - 2.Expanded

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Mercury Mercury µg/L 315 0.826 0.731 0.933 0.437 0.814 1.77 4.88 99.7% 0.0294 µg/L

Project: California Regional Exposure Study, Los Angeles County (CARE-LA)

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Mercury Mercury μg/L 425 1.05 0.937 1.17 0.442 1.12 2.44 6.17 94.8% 0.125

Project: Firefighter Occupational Exposures (FOX) Project

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD)
Mercury Mercury μg/L 101 2.79 2.36 3.30 1.82 2.90 5.48 9.79 100% 0.06

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Limit of Detection (LOD), wet-weight
Mercury Mercury μg/L 77 0.45 0.37 0.54 0.26 0.46 0.76 1.1 0.064

Chemical Group:Metals

• Measured in: Urine

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 1

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Mercury Mercury µg/L 100 0.301 0.246 0.367 0.135 0.301 0.599 1.71 99% 0.0300

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 2

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Mercury Mercury µg/L 100 0.432 0.349 0.535 0.218 0.418 0.816 2.11 97% 0.0500

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Mercury Mercury µg/L 108 0.210 0.168 0.263 0.087 0.217 0.509 1.14 98.1% 0.0163 µg/L

Project: Biomonitoring Exposures Study (BEST) - 2.Expanded

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Mercury Mercury µg/L 218 0.201 0.168 0.241 0.100 0.222 0.478 1.59 93.6% 0.0163 µg/L

Project: California Regional Exposure Study, Los Angeles County (CARE-LA)

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Mercury Mercury μg/L 428 0.181 0.159 0.206 0.0758 0.215 0.459 1.48 97.7% 0.0100

Project: Firefighter Occupational Exposures (FOX) Project

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
Mercury Mercury μg/L 101 0.455 0.382 0.542 0.221 0.447 0.914 1.28 100% 0.0522

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Limit of Detection (LOD), wet-weight
Mercury Mercury μg/L 89 0.212 0.164 0.274 0.0897 0.176 0.429 0.997 0.0522

Footnotes

*Geometric mean was not calculated because the chemical was found in less than 65% of the study group.
*Geometric mean was not calculated because the chemical was found in less than 65% of the study group
**LOD changed during the time that samples were analyzed for this project.
# As of March 2013, PFBuS is no longer measured due to instrumental background interference.