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J Toxicol Environ Health A


Title:"Environmental and biological monitoring of benzene, toluene, ethylbenzene and xylene (BTEX) exposure in residents living near gas stations"
Author(s):Barros N; Carvalho M; Silva C; Fontes T; Prata JC; Sousa A; Manso MC;
Address:"a FP-ENAS - UFP Energy, Environment and Health Research Unit, University Fernando Pessoa , Porto , Portugal. b Science and Technology Faculty, University Fernando Pessoa , Porto , Portugal. c UCIBIO, REQUIMTE, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto , Porto , Portugal. d Health Sciences Faculty, University Fernando Pessoa , Porto , Portugal. e INESC TEC - INESC Technology and Science , Porto , Portugal. f Centre for Environmental and Marine Studies (CESAM) and Department of Chemistry, University of Aveiro , Aveiro , Portugal. g LAQV-REQUIMTE, University of Porto , Porto , Portugal"
Journal Title:J Toxicol Environ Health A
Year:2019
Volume:20190702
Issue:9
Page Number:550 - 563
DOI: 10.1080/15287394.2019.1634380
ISSN/ISBN:1528-7394 (Print) 0098-4108 (Linking)
Abstract:"The volatile organic compounds benzene, toluene, ethylbenzene, and xylene (BTEX) are emitted into the atmosphere at gas stations (GS) leading to chronic exposure of nearby residents, which raises public health concerns. This study aimes at determining the contribution of GS emissions to BTEX exposure in nearby residents. Three Control and Exposed areas to BTEX emissions from GS were defined in a medium-sized European city (Porto, Portugal). BTEX atmospheric levels were determined in Control and Exposed areas using passive samplers deployed outdoors (n = 48) and indoors (n = 36), and human exposure was estimated for 119 non-smoking residents using the first urine of the day. Results showed that median BTEX outdoor and indoor concentrations were significantly higher for Exposed than Control areas, with exception of ethylbenzene and xylene indoor concentrations, where no marked differences were found. Comparison of urinary concentrations between Exposed and Control residents demonstrated no significant differences for benzene and ethylbenzene, whereas levels of toluene and xylene were significantly higher in Exposed residents. No marked correlation was obtained between atmospheric BTEX concentrations and urinary concentrations. Data indicate the potential impact on air quality of BTEX emissions from GS, which confirms the importance of these findings in urban planning in order to minimize the impact on health and well-being of surrounding populations"
Keywords:"Adult Aged Aged, 80 and over Air Pollutants/*analysis Biological Monitoring *Environmental Monitoring Female Humans Male Middle Aged Petroleum/*analysis Portugal Volatile Organic Compounds/*analysis Young Adult Btex Gas station air quality biomonitoring u;"
Notes:"MedlineBarros, Nelson Carvalho, Marcia Silva, Claudia Fontes, Tania Prata, Joana C Sousa, Andre Manso, M Conceicao eng Research Support, Non-U.S. Gov't England 2019/07/04 J Toxicol Environ Health A. 2019; 82(9):550-563. doi: 10.1080/15287394.2019.1634380. Epub 2019 Jul 2"

 
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