Hematological Changes in Gas Station Workers

Area of Science:

• Occupational Health
• Toxicology
• Epidemiology

Background:

• Benzene, toluene, and xylene (BTX) are gasoline components.
• Occupational exposure to benzene can cause benzene poisoning, an occupational disease.
• This study investigates BTX exposure and hematological changes in gas station workers.

Purpose of the Study:

• To evaluate signs and symptoms related to occupational exposure in gas station workers.
• To determine if occupational exposure to BTX is associated with hematological changes.
• To assess the health status of gas station workers through clinical and hematological monitoring.

Main Methods:

• Cross-sectional epidemiological study of 542 participants (324 gas station workers, 218 office workers).
• Biomarkers used: trans,trans-Muconic acid (tt-MA), Hippuric acid (HA), and Methylhippuric acid (MHA).
• Data collected via questionnaires and serial blood sample analysis for hematological parameters.

Main Results:

• Gas station workers showed elevated tt-MA, HA, and MHA levels compared to office workers.
• Common symptoms in gas station workers included somnolence, headache, and dizziness.
• Hematological analysis revealed elevated total leukocyte counts and low lymphocyte counts (leukocytosis and lymphopenia) in some workers.

Conclusions:

• Occupational exposure to BTX is associated with initial changes in hematological parameters.
• Findings underscore the importance of monitoring clinical and subclinical health changes in exposed workers.
• Regular health surveillance is crucial for gas station workers and similar occupational groups.