Marć Mariusz, Bielawska Michalina, Wardencki Waldemar, Namieśnik Jacek, Zabiegała Bożena
Department of Analytical Chemistry, Gdańsk University of Technology, ul. Narutowicza 11/12, 80-233, Gdańsk, Poland.
Environ Sci Pollut Res Int. 2015 Aug;22(15):11940-54. doi: 10.1007/s11356-015-4484-9. Epub 2015 Apr 14.
The results of studies conducted in Gdansk in the period from January to December 2013 and focused on the determination of BTEX in the atmospheric air are presented. At the stage of the isolation and/or enrichment of analytes from the gaseous medium, a passive sampling technique-Radiello® diffusive passive samplers, was applied. The time-weighted average annual concentration of benzene, toluene, ethylbenzene, and total xylenes determined in the monitored area was as follows: 0.66 ± 0.32, 1.63 ± 0.94, 0.67 ± 0.61, and 2.9 ± 2.7 μg/m(3). As a result of the research, the potential emission sources of BTEX, which activity has a significant impact on the concentration of these compounds in the atmosphere in the Gdansk area, were identified. A comparison of the accuracy and precision of the results of benzene concentrations in the atmosphere obtained by the BTEX automatic analyzer and passive techniques was performed. Moreover, a significant influence of meteorological conditions, such as air temperature, intensity of solar radiation, velocity and direction of wind, humidity, and rainfall on the benzene content in ambient air was shown. Additionally, in order to determine the conditions in the area covered by the monitoring, information about atmospheric stability and the height of the mixing layer was presented.
本文展示了2013年1月至12月在格但斯克进行的、聚焦于测定大气中BTEX的研究结果。在从气态介质中分离和/或富集分析物的阶段，采用了一种被动采样技术——Radiello®扩散被动采样器。在监测区域测定的苯、甲苯、乙苯和总二甲苯的时间加权平均年浓度如下：0.66±0.32、1.63±0.94、0.67±0.61和2.9±2.7μg/m³。研究结果确定了BTEX的潜在排放源，其活动对格但斯克地区大气中这些化合物的浓度有重大影响。对BTEX自动分析仪和被动技术获得的大气中苯浓度结果的准确性和精密度进行了比较。此外，还显示了气象条件，如气温、太阳辐射强度、风速和风向、湿度以及降雨对环境空气中苯含量的显著影响。此外，为了确定监测区域的条件，还给出了有关大气稳定性和混合层高度的信息。
