Respondent sequence number
Blood lead (ug/dL)
Blood lead (umol/L)
Blood lead comment code
Blood cadmium (ug/L)
Blood cadmium (nmol/L)
Blood cadmium comment code
Blood mercury, total (ug/L)
Blood mercury, total (nmol/L)
Blood mercury, total comment code
Blood selenium (ug/L)
Blood selenium (umol/L)
Blood selenium comment code
Blood manganese (ug/L)
Blood manganese (nmol/L)
Blood manganese comment code