COMPARISON OF URINARY BIOMARKERS CONCENTRATIONS IN EXPOSED AND NON-EXPOSED PETROL STATION WORKERS IN THE EASTERN ECONOMIC CORRIDOR (EEC), THAILAND
Issued Date
2022-01-01
Resource Type
ISSN
00357715
Scopus ID
2-s2.0-85127069244
Pubmed ID
35322963
Journal Title
Roczniki Panstwowego Zakladu Higieny / Annals of the National Institute of Hygiene
Volume
73
Issue
1
Start Page
109
End Page
119
Rights Holder(s)
SCOPUS
Bibliographic Citation
Roczniki Panstwowego Zakladu Higieny / Annals of the National Institute of Hygiene Vol.73 No.1 (2022) , 109-119
Suggested Citation
Thetkathuek A. COMPARISON OF URINARY BIOMARKERS CONCENTRATIONS IN EXPOSED AND NON-EXPOSED PETROL STATION WORKERS IN THE EASTERN ECONOMIC CORRIDOR (EEC), THAILAND. Roczniki Panstwowego Zakladu Higieny / Annals of the National Institute of Hygiene Vol.73 No.1 (2022) , 109-119. 119. doi:10.32394/rpzh.2022.0197 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/87430
Title
COMPARISON OF URINARY BIOMARKERS CONCENTRATIONS IN EXPOSED AND NON-EXPOSED PETROL STATION WORKERS IN THE EASTERN ECONOMIC CORRIDOR (EEC), THAILAND
Author(s)
Other Contributor(s)
Abstract
Background. The Thai government has been developing its Eastern Economic Corridor (EEC), which spans three provinces, with the aim of improving connections with other Asian nations. Since this strategic development, the number of trucks, private car, and passenger car registrations have continued to grow, with a corresponding increase in related to benzene, toluene, ethylbenzene, and xylene (BTEX). Objectives. This study aims to compare the levels of trans, trans-muconic acid (t, t MA); toluene (TU); mandelic acid (MA); and methyl hippuric acid (MHA) in the urine of gas station employees, considering demographic and occupational factors. Material and methods. These employees worked either near or away from the fuel dispenser, and there 100 people in each group. Data were collected using interviews and testing environmental air and urine samples for benzene, toluene, ethyl benzene, and xylene (BTEX). Results. The results showed that BTEX concentrations were just detectable in all 200 cases (100%). The mean (±SD) urine level of t, t MA was 449.28 (±213.32) µg/g creatinine, while the median (min-max) was 428.23 (95.58-1202.56) µg/g creatinine. The mean TU was 0.011 (0.001) mg/L, while the median (min-max) was 0.011 (0.010-0.013) mg/L. MA levels were higher inside the pollution control zone than they were outside the zone (p=.009). Employees who practiced poor personal hygiene had relatively high urinary toluene and MHA levels (p=.009) and those who did not wear personal protective equipment (PPE) had relatively high MA levels (p=.040). Conclusion. The results of this study revealed statistically significant biomarkers influencing the levels of t, t MA; TU; MA; and MHA in urine. The recommendations of this study are that employers should provide their employees with suitable PPE, check regularly to ensure that it is worn, and strongly encourage employees to take care of their sanitation. Employees should take appropriate breaks and days off to minimize their exposure to BTEX.