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[A study on biomarkers of styrene]
Hua Shao1, Xiao-yun Wang, Hu Cheng
1Shandong Institute of Labor Health and Occupational Disease, Jinan, Shandon 250062, China.
Summary
Mandalic acid (MA), phenylglyoxalic acid (PGA), and mercapturic acid (MUA) in urine are reliable biomarkers for styrene exposure. These can be used for effective biological monitoring of styrene in occupational settings.
Area of Science:
- Occupational Health
- Toxicology
- Analytical Chemistry
Context:
- Styrene exposure poses risks in various industrial settings.
- Accurate biological monitoring is crucial for assessing worker exposure levels.
- Existing methods for styrene biomonitoring require validation and optimization.
Purpose:
- To identify and validate reliable urinary biomarkers for styrene exposure.
- To establish dose-response relationships for these biomarkers.
- To provide a theoretical basis for effective styrene bio-monitoring strategies.
Summary:
- Urinary mandelic acid (MA), phenylglyoxalic acid (PGA), and mercapturic acid (MUA) were quantified using high-performance liquid chromatography (HPLC).
- Close correlations were observed between styrene exposure dose and the levels of MA, PGA, and MUA in both morning and post-shift urine samples.
- Regression equations were derived, demonstrating a clear dose-response relationship for all three biomarkers.
Impact:
- The study validates MA, PGA, and MUA as suitable biomarkers for styrene bio-monitoring.
- Findings support the implementation of these biomarkers for assessing occupational styrene exposure.
- This research provides a foundation for improved health surveillance programs for styrene-exposed workers.