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Hydrogen fluoride concentrations in ambient air of an urban area based on the emissions of a major phosphogypsum deposit (SW, Europe).
Science of the Total Environment ( IF 8.2 ) Pub Date : 2020-01-23 , DOI: 10.1016/j.scitotenv.2020.136891
R Torres-Sánchez 1 , D Sánchez-Rodas 2 , A M Sánchez de la Campa 3 , J D de la Rosa 1
Affiliation  

Hydrogen fluoride (HF) is one of the most toxic gaseous compounds in air, the primary anthropogenic source of which is industrial activity, specifically fertilizer and waste. HF concentrations in an urban area (Huelva, SW Spain) related to a nearby major phosphogypsum (PG) deposit were measured by passive sampling during summer and winter months from 2014 to 2017 and high-resolution sampling during 2017 and 2017-2018 using an HF analyser. An HF geochemical anomaly was found in the PG pond with average concentrations of up to 19.1 μg/m3, and concentrations of up to 1.6 μg/m3 were exhibited in the nearest urban area. The concentrations were associated with the HF emissions from the PG deposit. Emission factors were calculated by field and laboratory experiments, and the brines exhibited the highest emission factor (2.7 kg/ha day). Several impacts of HF (>0.1 μg/m3) in the city were recorded throughout the year, occurring at noon in the summer and during fog events in the winter. Consequently, the PG system should be restored to protect the population living in Huelva from the impacts of HF emission.

中文翻译:

基于主要磷石膏矿床的排放量,市区环境空气中的氟化氢浓度(欧洲,欧洲)。

氟化氢(HF)是空气中毒性最强的气态化合物之一,其主要的人为来源是工业活动,特别是肥料和废物。通过2014年至2017年夏季和冬季的被动采样以及使用HF的2017年和2017-2018年的高分辨率采样来测量与附近主要磷石膏(PG)沉积物相关的市区(韦尔瓦,西班牙西南部)中的HF浓度分析器。在PG池塘中发现了HF地球化学异常,其平均浓度高达19.1μg/ m3,在最近的城市地区也表现出高达1.6μg/ m3的浓度。浓度与PG沉积物中的HF排放有关。排放因子是通过现场和实验室实验计算得出的,盐水显示出最高的排放因子(2.7千克/公顷/天)。全年记录了城市中HF的几种影响(> 0.1μg/ m3),发生在夏季的中午和冬季的雾霾期间。因此,应恢复PG系统,以保护居住在韦尔瓦的居民免受HF辐射的影响。
更新日期:2020-01-23
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