Table 5 Reference and reportable values for blood metals levels (μg/dL)

US age 20+ yrs [34]

2011–2012

Geometric Mean (95 % CI)

0.0337 (0.0323–0.0353)

0.0863 (0.0753–0.0990)

1.09 (1.03–1.16)

N/A

New York City age 20+ yrs [35]

2004

Geometric Mean (95 % CI)

0.077 (0.075–0.080)

0.273 (0.258–0.289)

1.79 (1.73–1.86)

N/A

Pregnant women (3^rd trimester) in NC [36]

2009–2011

Geometric Mean (range)

0.0181 (<0.011–0.279)

0.0453 (<0.023–1.178)

0.890 (0.19–7.72)

0.0445 (<0.023–0.858)

Pregnant women (delivery) in Durham County [37]

2005–2010

Geometric Mean (range)

0.033 (0–0.402)

N/A

N/A

N/A

New York State [38]

n/a

Reportable Value

1

0.5

All

N/A

Michigan State [39]

n/a

Reportable Value

0.5

1.5

5

7

OSHA [40]

n/a

BEI^a

0.5

1.5

30

N/A

CDC [41]

n/a

Reportable Value for Children and Pregnant Women

N/A

N/A

5

N/A