Results for Organochlorine Pesticides

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Results on page last updated: 03/01/2018

Chemical Group: Organochlorine Pesticides

  • Measured in: Serum

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

Diverse group of smiling adults
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
beta-Hexachlorocyclohexane (beta-HCH) b-HCH ng/g lipid 110 7.00 5.42 9.05 2.98 5.94 11.5 115 89.1% 0.00800 ng/mL
DDE (para,para) para,para-DDT and/or para,para-DDE ng/g lipid 110 321 266 386 161 318 585 2180 100.0% 0.0160 ng/mL
DDT (ortho,para) ortho,para-DDT ng/g lipid 110 * * * <LOD <LOD <LOD <LOD 0.0% 0.00800 ng/mL
DDT (para,para) para,para-DDT ng/g lipid 110 * * * <LOD <LOD <LOD 10.6 15.5% 0.00800 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 110 11.6 10.8 12.5 9.21 11.4 14.0 20.6 100.0% 0.00800 ng/mL
Oxychlordane Chlordane ng/g lipid 110 7.61 6.41 9.02 5.45 8.30 13.2 28.4 91.8% 0.00800 ng/mL
trans-Nonachlor Chlordane ng/g lipid 110 14.3 12.0 17.0 8.31 14.5 25.1 60.8 99.1% 0.00800 ng/mL

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

Diverse group of smiling adults
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
beta-Hexachlorocyclohexane (beta-HCH) b-HCH ng/g lipid 217 * * * <LOD <LOD 8.73 62.9 47.5% 0.00800 ng/mL
DDE (para,para) para,para-DDT and/or para,para-DDE ng/g lipid 217 271 235 312 128 234 561 1970 100% 0.0160 ng/mL
DDT (ortho,para) ortho,para-DDT ng/g lipid 217 * * * <LOD <LOD <LOD <LOD 4.2% 0.00800 ng/mL
DDT (para,para) para,para-DDT ng/g lipid 217 2.16 1.96 2.38 <LOD 1.88 3.28 8.86 70.0% 0.00800 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 217 8.93 8.50 9.37 6.99 8.75 11.3 17.5 100% 0.0106 ng/mL
Oxychlordane Chlordane ng/g lipid 217 4.08 3.61 4.61 1.98 4.33 8.01 20.3 85.3% 0.00800 ng/mL
trans-Nonachlor Chlordane ng/g lipid 217 7.40 6.40 8.55 3.69 8.11 15.7 38.1 88.0% 0.00800 ng/mL

Project: California Childhood Leukemia Study (CCLS)

Logo shows three young bears in yellow color standing in a row holding hands, with the name of the study shown in blue
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
beta-Hexachlorocyclohexane (beta-HCH) b-HCH ng/g lipid 48 5.7 3.8 8.5 <LOD 5.9 10 29 69% 0.010 ng/mL
DDE (para,para) DDT (para,para) and/or DDE (para,para) ng/g lipid 48 190 160 230 120 180 290 420 100% 0.027 ng/mL
DDT (ortho,para) DDT (ortho,para) ng/g lipid 48 3.7 3.0 4.6 <LOD 5.3 7.1 8.2 69% 0.012 ng/mL
DDT (para,para) DDT (para,para) ng/g lipid 48 4.3 3.5 5.2 3.3 4.1 6.3 9.0 88% 0.010 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 48 7.7 7.2 8.1 6.8 7.8 8.5 10 100% 0.010 ng/mL
Oxychlordane Chlordane ng/g lipid 48 4.6 4.1 5.2 3.9 5.0 5.8 7.1 98% 0.010 ng/mL
trans-Nonachlor Chlordane ng/g lipid 48 8.8 7.7 10 6.7 8.8 11 15 100% 0.011 ng/mL

Project: California Teachers Study (CTS)

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
beta-Hexachlorocyclohexane (beta-HCH) b-HCH ng/g lipid 793 5.21 4.88 5.57 2.79 5.24 9.66 25.3 84.5% 0.015 ng/mL
DDE (para,para) DDT (para,para) and/or DDE (para,para) ng/g lipid 793 301 283 320 159 298 540 1360 100% 0.015 ng/mL
DDT (ortho,para) DDT (ortho,para) ng/g lipid 793 * * * <LOD <LOD <LOD <LOD 2.3% 0.031 ng/mL
DDT (para,para) DDT (para,para) ng/g lipid 793 1.94 1.87 2.02 <LOD 1.84 2.58 5.47 67.7% 0.015 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 793 12.0 11.7 12.2 9.75 11.9 14.3 20.8 100% 0.015 ng/mL
Oxychlordane Oxychlordane ng/g lipid 793 8.34 7.95 8.75 5.52 8.63 13.0 23.6 98.1% 0.015 ng/mL
trans-Nonachlor t-Nonachlor ng/g lipid 793 15.3 14.6 16.0 10.1 14.8 23.4 49.4 99.9% 0.015 ng/mL

Project: Firefighter Occupational Exposures (FOX) Project

Firefighters fighting flames, wearing full protective suits and holding large hoses spraying water
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
beta-Hexachlorocyclohexane (beta-HCH) beta-HCH ng/g lipid 101 2.19 2.00 2.41 1.68 2.23 2.83 4.64 97.0% 0.005 ng/mL
DDE (para,para) para,para-DDT and/or para,para-DDE ng/g lipid 101 177 161 196 125 182 245 394 100% 0.009 ng/mL
DDT (ortho,para) ortho,para-DDT ng/g lipid 101 * * * <LOD <LOD <LOD <LOD 4.0% 0.005 ng/mL
DDT (para,para) para,para-DDT ng/g lipid 101 1.34 1.20 1.50 <LOD 1.43 2.07 3.08 74.3% 0.005 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 101 11.8 11.3 12.4 10.3 11.7 13.2 17.6 100% 0.007 ng/mL
Oxychlordane Chlordane ng/g lipid 101 4.08 3.64 4.56 2.73 4.31 5.80 9.63 99.0% 0.005 ng/mL
trans-Nonachlor Chlordane ng/g lipid 101 7.32 6.57 8.15 5.07 7.32 10.2 16.6 100% 0.005 ng/mL

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

Pregnant woman seated in front of a laptop computer
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
beta-Hexachlorocyclohexane (beta-HCH) beta-HCH ng/g lipid 77 * * * <LOD 1.59 6.00 13.2 0.005 ng/mL
DDE (para,para) para,para-DDT and/or para,para-DDE ng/g lipid 77 112 85.1 149 53.0 94.0 161 516 0.005 ng/mL
DDT (ortho,para) ortho,para-DDT ng/g lipid 77 * * * <LOD <LOD <LOD <LOD 0.005 ng/mL
DDT (para,para) para,para-DDT ng/g lipid 77 * * * <LOD <LOD <LOD 18.2 0.005 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 77 8.26 7.58 8.99 6.50 8.43 10.1 12.5 0.034 ng/mL
Oxychlordane Chlordane ng/g lipid 77 * * * <LOD 0.93 1.6 3.2 0.005 ng/mL
trans-Nonachlor Chlordane ng/g lipid 77 1.69 1.41 2.02 1.09 1.80 2.87 4.88 0.006 ng/mL

Project: Measuring Analytes in Maternal Archived Samples (MAMAS)

Pregnant woman standing, hands holding her belly, in an outdoor setting
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
beta-Hexachlorocyclohexane (beta-HCH) b-HCH ng/g lipid 58 * * * <LOD <LOD <LOD <LOD 1.7% 0.011 ng/mL
DDE (para,para) DDT (para,para) and/or DDE (para,para) ng/g lipid 58 82.6 61.7 110 38.8 72.5 155 433 100% 0.008 ng/mL
DDT (ortho,para) DDT (ortho,para) ng/g lipid 58 * * * <LOD <LOD <LOD <LOD 5.2% 0.010 ng/mL
DDT (para,para) DDT (para,para) ng/g lipid 58 * * * <LOD <LOD 1.85 5.59 25.9% 0.011 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 58 6.41 5.85 7.03 5.24 6.14 7.43 8.93 100% 0.012 ng/mL
Oxychlordane Oxychlordane ng/g lipid 58 * * * <LOD <LOD <LOD 1.69 20.7% 0.006 ng/mL
trans-Nonachlor t-Nonachlor ng/g lipid 58 * * * <LOD <LOD <LOD <LOD 1.7% 0.011 ng/mL

Footnotes

*Geometric mean was not calculated because the chemical was found in less than 65% of the study group