13.02.2013 Views

Air Quality Criteria for Lead Volume II of II - (NEPIS)(EPA) - US ...

Air Quality Criteria for Lead Volume II of II - (NEPIS)(EPA) - US ...

Air Quality Criteria for Lead Volume II of II - (NEPIS)(EPA) - US ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

AX4-39<br />

Table AX4-11. Summary <strong>of</strong> Selected Measurements <strong>of</strong> Urine <strong>Lead</strong> Levels in Humans<br />

Reference, Study<br />

Location, and Period Study Description Urine <strong>Lead</strong> Measurement Comment<br />

United States<br />

CDC (2005)<br />

U.S.<br />

1999-2002<br />

Schwartz et al.<br />

(1999, 2000b)<br />

U.S.<br />

1993-1997<br />

Rabinowitz et al.<br />

(1976)<br />

New York<br />

NR<br />

Design: national survey (NHANES IV)<br />

stratified, multistage probability cluster design<br />

Subjects: children and adults ($6 yrs, n = 5140)<br />

in general population<br />

Biomarker measured: urine lead<br />

Analysis: ICP-MS<br />

Design: prospective<br />

Subjects: adult male (n = 543) <strong>for</strong>mer TEL<br />

manufacture workers (age range: 42-74 yrs)<br />

Biomarker measured: DMSA (10 mg/kg)provoked<br />

urine lead<br />

Analysis: GFAAS<br />

Design: experimental study<br />

Subjects: adult (n:5) males, age range 25-53 yrs,<br />

ingested 300 µg Pb/day (~50% as 204 Pb) <strong>for</strong><br />

10-210 days<br />

Biomarker measured: urine lead<br />

Analysis: MS<br />

Units: µg/g creatinine<br />

Geometric mean (95% CI)<br />

Age (yr) 1999-2000 2001-2002<br />

$6: 0.72 (0.70, 0.74) 0.64 (0.60, 0.68)<br />

n: 2465 2689<br />

6-11: 1.17 (0.98, 1.41) 0.92 (0.84, 1.00)<br />

n: 340 368<br />

12-19: 0.50 (0.46, 0.54) 0.40 (0.38, 0.43)<br />

n: 719 762<br />

$20: 0.72 (0.68, 0.76) 0.66 (0.621, 0.70)<br />

n: 1406 1559<br />

Males: 0.72 (0.68, 0.76) 0.64 (0.61, 0.67)<br />

n: 1227 1334<br />

Females: 0.72 (0.68, 0.76) 0.64 (0.59, 0.69)<br />

n: 1238 1355<br />

Units: µg/4 hr<br />

Arithmetic mean (SD):<br />

$2 yr exposure: 17.1 (15.7)<br />

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!