HH3. What are the trends in exposure to environmental pollutants
including across population subgroups and geographic regions?

+----------------+--------+---------+-------+-----+-----+-----+-----+
| > Table        |        |         |       |     |     |     |     |
| > 10           |        |         |       |     |     |     |     |
| 4-3Pyrethroid. |        |         |       |     |     |     |     |
| > Geometric    |        |         |       |     |     |     |     |
| > mean and     |        |         |       |     |     |     |     |
| > selected     |        |         |       |     |     |     |     |
| > percentiles  |        |         |       |     |     |     |     |
| > for          |        |         |       |     |     |     |     |
| > unadjusted   |        |         |       |     |     |     |     |
| > and          |        |         |       |     |     |     |     |
| > creat        |        |         |       |     |     |     |     |
| inine-adjusted |        |         |       |     |     |     |     |
| > urinary      |        |         |       |     |     |     |     |
| >              |        |         |       |     |     |     |     |
| concentrations |        |         |       |     |     |     |     |
| > of selected  |        |         |       |     |     |     |     |
| > pyrethroids  |        |         |       |     |     |     |     |
| > among a      |        |         |       |     |     |     |     |
| > subsample of |        |         |       |     |     |     |     |
| > participants |        |         |       |     |     |     |     |
| > aged 6-59    |        |         |       |     |     |     |     |
| > years from   |        |         |       |     |     |     |     |
| > National     |        |         |       |     |     |     |     |
| > Health and   |        |         |       |     |     |     |     |
| > Nutrition    |        |         |       |     |     |     |     |
| > Examination  |        |         |       |     |     |     |     |
| > Survey       |        |         |       |     |     |     |     |
| > (NHANES),    |        |         |       |     |     |     |     |
| > 2001-2002.   |        |         |       |     |     |     |     |
+----------------+--------+---------+-------+-----+-----+-----+-----+
|                | >      | >       | Geom  | >   | >   | >   | >   |
|                | Survey |  Sample | etric | 50^ | 75^ | 90^ | 95^ |
|                | >      | > Size  | Mean  | th^ | th^ | th^ | th^ |
|                |  Years |         |       |     |     |     |     |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > 4-Fluoro-3-  |        |         |       |     |     |     |     |
| phenoxybenzoic |        |         |       |     |     |     |     |
| > acid         |        |         |       |     |     |     |     |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > µg/L of      | > 200  | > 2,539 | NC    | >   | >   | >   | >   |
| > urine        | 1-2002 |         |       |  \< |  \< |  \< |  \< |
|                |        |         |       | LOD | LOD | LOD | LOD |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > µg/g of      | > 200  | > 2,538 | NC    | >   | >   | >   | >   |
| > creatinine\* | 1-2002 |         |       |  \< |  \< |  \< |  \< |
|                |        |         |       | LOD | LOD | LOD | LOD |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > Cis-3-(2     |        |         |       |     |     |     |     |
| ,2-Dichlorovin |        |         |       |     |     |     |     |
| yl)-2,2-dimeth |        |         |       |     |     |     |     |
| ylcyclopropane |        |         |       |     |     |     |     |
| > carboxylic   |        |         |       |     |     |     |     |
| > acid         |        |         |       |     |     |     |     |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > µg/L of      | > 200  | > 2,539 | NC    | >   | > 0 | > 0 | > 0 |
| > urine        | 1-2002 |         |       |  \< | .16 | .49 | .89 |
|                |        |         |       | LOD |     |     |     |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > µg/g of      | > 200  | > 2,538 | NC    | >   | > 0 | > 0 | > 0 |
| > creatinine\* | 1-2002 |         |       |  \< | .22 | .44 | .78 |
|                |        |         |       | LOD |     |     |     |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > trans-3-(2   |        |         |       |     |     |     |     |
| ,2-Dichlorovin |        |         |       |     |     |     |     |
| yl)-2,2-dimeth |        |         |       |     |     |     |     |
| ylcyclopropane |        |         |       |     |     |     |     |
| > carboxylic   |        |         |       |     |     |     |     |
| > acid         |        |         |       |     |     |     |     |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > µg/L of      | > 200  | > 2,525 | NC    | >   | > 0 | > 1 | > 2 |
| > urine        | 1-2002 |         |       |  \< | .41 | .20 | .50 |
|                |        |         |       | LOD |     |     |     |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > µg/g of      | > 200  | > 2,524 | NC    | >   | > 0 | > 1 | > 2 |
| > creatinine\* | 1-2002 |         |       |  \< | .72 | .45 | .55 |
|                |        |         |       | LOD |     |     |     |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > cis-3-(      |        |         |       |     |     |     |     |
| 2,2-Dibromovin |        |         |       |     |     |     |     |
| yl)-2,2-dimeth |        |         |       |     |     |     |     |
| ylcyclopropane |        |         |       |     |     |     |     |
| > carboxylic   |        |         |       |     |     |     |     |
| > acid         |        |         |       |     |     |     |     |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > µg/L of      | > 200  | > 2,539 | NC    | >   | >   | >   | >   |
| > urine        | 1-2002 |         |       |  \< |  \< |  \< |  \< |
|                |        |         |       | LOD | LOD | LOD | LOD |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > µg/g of      | > 200  | > 2,538 | NC    | >   | >   | >   | >   |
| > creatinine\* | 1-2002 |         |       |  \< |  \< |  \< |  \< |
|                |        |         |       | LOD | LOD | LOD | LOD |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > 3-           |        |         |       |     |     |     |     |
| Phenoxybenzoic |        |         |       |     |     |     |     |
| > acid         |        |         |       |     |     |     |     |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > µg/L of      | > 200  | > 2,539 | 0.32  | > 0 | > 0 | > 1 | > 3 |
| > urine        | 1-2002 |         |       | .28 | .69 | .69 | .32 |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| > µg/g of      | > 200  | > 2,538 | 0.32  | > 0 | > 0 | > 1 | > 3 |
| > creatinine\* | 1-2002 |         |       | .28 | .58 | .46 | .10 |
+----------------+--------+---------+-------+-----+-----+-----+-----+
| \* µg per gram |        |         |       |     |     |     |     |
| of creatinine  |        |         |       |     |     |     |     |
| in urine       |        |         |       |     |     |     |     |
|                |        |         |       |     |     |     |     |
| \<LOD= Less    |        |         |       |     |     |     |     |
| than the limit |        |         |       |     |     |     |     |
| of detection   |        |         |       |     |     |     |     |
| of the         |        |         |       |     |     |     |     |
| analytical     |        |         |       |     |     |     |     |
| method.        |        |         |       |     |     |     |     |
|                |        |         |       |     |     |     |     |
| NC= Not        |        |         |       |     |     |     |     |
| calculated --  |        |         |       |     |     |     |     |
| Proportion of  |        |         |       |     |     |     |     |
| results below  |        |         |       |     |     |     |     |
| limit of       |        |         |       |     |     |     |     |
| detection was  |        |         |       |     |     |     |     |
| too high to    |        |         |       |     |     |     |     |
| provide a      |        |         |       |     |     |     |     |
| valid result.  |        |         |       |     |     |     |     |
|                |        |         |       |     |     |     |     |
| > Source:      |        |         |       |     |     |     |     |
|                |        |         |       |     |     |     |     |
| Centers for    |        |         |       |     |     |     |     |
| Disease        |        |         |       |     |     |     |     |
| Control and    |        |         |       |     |     |     |     |
| Prevention.    |        |         |       |     |     |     |     |
| Third National |        |         |       |     |     |     |     |
| Report on      |        |         |       |     |     |     |     |
| Human Exposure |        |         |       |     |     |     |     |
| to             |        |         |       |     |     |     |     |
| Environmental  |        |         |       |     |     |     |     |
| Chemicals.     |        |         |       |     |     |     |     |
| July 2005.     |        |         |       |     |     |     |     |
| (Accessed      |        |         |       |     |     |     |     |
| August 29,     |        |         |       |     |     |     |     |
| 2005)          |        |         |       |     |     |     |     |
|                |        |         |       |     |     |     |     |
| <http://w      |        |         |       |     |     |     |     |
| ww.cdc.gov/exp |        |         |       |     |     |     |     |
| osurereport/3r |        |         |       |     |     |     |     |
| d/results.htm> |        |         |       |     |     |     |     |
+----------------+--------+---------+-------+-----+-----+-----+-----+