Temporal Variation of BTEX at the Area of Petrol Station in Bangkok, Thailand

APCBEE Procedia Pub Date : 2014-01-01 DOI:10.1016/j.apcbee.2014.10.011

Pattamaporn Rattanajongjitrakorn , Tassanee Prueksasit

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引用次数: 22

Abstract

This work aims to find changing amount of BTEX in period of time and theirs concentration at difference positions surrounding the petrol station located at the boundary of Bangkok and Nonthaburi, Thailand. A carbon charcoal glass tube connected to a personal air pump was used to collect BTEX during 16 hrs (6 a.m. - 10 p.m.) divided into 4 periods. After sampling, BTEX was extracted from charcoal tubes and analyzed by GC/FID. The center of petrol station which is considered as the main point source has the highest BTEX average concentration: benzene 589.91±107.26 μg/m³, toluene 1,694.92±212.27 μg/m³, ethylbenzene 96.74±17.34 μg/m³, m,p-xylene 409.79±59.91 μg/m³, and o-xylene 123.96±16.01 μg/m³. Total BTEX at the center point are 12.8 and 22.9 times higher than those at roadside and the backside of petrol station, respectively. Temperature and humidity are possible meteorological variables which affect BTEX concentrations.

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泰国曼谷加油站区域BTEX的时间变化

本研究旨在寻找一段时间内BTEX的数量变化，以及它们在位于泰国曼谷和北武里边界的加油站周围不同位置的浓度。在16个小时(上午6点至晚上10点)内(分为4个时段)，使用连接到个人气泵的碳炭玻璃管收集BTEX。取样后，从炭管中提取BTEX, GC/FID分析。被认为是主要点源的加油站中心BTEX平均浓度最高:苯589.91±107.26 μg/m3、甲苯1694.92±212.27 μg/m3、乙苯96.74±17.34 μg/m3、m、对二甲苯409.79±59.91 μg/m3、邻二甲苯123.96±16.01 μg/m3。加油站中心点的总BTEX分别是路边和加油站后方的12.8倍和22.9倍。温度和湿度是可能影响BTEX浓度的气象变量。

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APCBEE Procedia

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