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首页> 外文期刊>Journal of Environmental Science and Health. A, Toxic/Hazardous Substances & Environmental Engineering >Concentrations of PAHs and other gaseous pollutants in the atmosphere of a rural area
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Concentrations of PAHs and other gaseous pollutants in the atmosphere of a rural area

机译：农村地区大气中PAHs和其他气体污染物的浓度

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摘要

In this study, concentrations of polycyclic aromatic hydrocarbons (PAHs) bound to PM10 particles were measured in a Croatian rural area. Considering that by now only a limited number of studies have provided data on pollutant concentrations for rural areas, our aim was to do so by determining the PAH levels, their mutagenic effect and relationship with meteorological conditions and other gaseous pollutants (NO, NO2, NH3). In this investigation, samples of PM10 particles were collected on quartz filters for 1month in the cold period and 1month in the warm period of the year, 24h a day. Diagnostic PAH concentration ratios and factor analysis were used as tools to identify and characterize the PAH sources. The PAHs found in the warm period of the year were characteristic for car exhaust emissions while the predominant source of these pollutants in the cold period was wood burning.The measurements showed much higher average concentrations of all PAHs in the cold period, most pronounced for fluoranthene 0.347ngm(-3) and pyrene 0.223ngm(-3). Mass concentrations of benzo(a)pyrene in the cold period ranged from 0.057 to 1.526ngm(-3), while in the warm period they varied from 0.009 to 0.111ngm(-3). Mutagenicity related to BaP (BaPMeq) was significantly higher during the cold period (1.095ngm(-3)) than in the warm period (0.101ngm(-3)).
机译：在这项研究中，在克罗地亚农村地区测量了与PM10颗粒结合的多环芳烃（PAH）的浓度。考虑到目前只有很少的研究提供了农村地区污染物浓度的数据，我们的目的是通过确定PAH含量，其致突变作用以及与气象条件和其他气体污染物（NO，NO2，NH3 ）。在这项调查中，在一年中每天24小时的寒冷时期和温暖时期的1个月中，在石英过滤器上收集了PM10颗粒的样品。诊断性PAH浓度比和因子分析被用作识别和表征PAH来源的工具。在一年的温暖时期发现的PAHs是汽车尾气排放的特征，而在寒冷时期这些污染物的主要来源是木材燃烧。测量结果表明，在寒冷时期所有PAHs的平均浓度高得多，其中荧蒽最明显0.347ngm（-3）和pyr 0.223ngm（-3）。寒冷时期苯并（a）py的质量浓度范围为0.057至1.526ngm（-3），而在温暖时期，其浓度范围为0.009至0.111ngm（-3）。与BaP（BaPMeq）相关的致突变性在寒冷时期（1.095ngm（-3））明显高于温暖时期（0.101ngm（-3））。

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