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J Occup Environ Med. 2003 May;45(5):546-55.

Occurrence of lead-related symptoms below the current occupational safety and health act allowable blood lead levels.

Author information

1
Michigan State University, 117 West Fee Hall, East Lansing, MI 48824-1315, USA. Rosenman@msu.edu

Abstract

To determine the occurrence of symptoms of lead toxicity at levels below the current allowable Occupational Safety and Health Act blood lead level of 50 micrograms/dL, standardized telephone interviews were conducted of individuals reported to a statewide laboratory-based surveillance system. Four hundred and ninety-seven, or 75%, of the eligible participants were interviewed. Gastrointestinal, musculoskeletal, and nervous system symptoms increased with increasing blood lead levels. Nervous, gastrointestinal, and musculoskeletal symptoms all began to be increased in individuals with blood leads between 30-39 micrograms/dL and possibly at levels as low as 25-30 micrograms/dL for nervous system symptoms. The results of this study of increased symptoms are consistent with and provide added weight to previous results showing subclinical changes in the neurologic and renal systems and sperm counts at blood lead levels currently allowed by the Occupational Safety and Health Act.

PMID:
12762080
[Indexed for MEDLINE]

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