CIQSO, Robert H. Grubbs Building, University of Huelva, Campus El Carmen, E21071 Huelva, Spain; Department of Earth Sciences, University of Huelva, Campus de El Carmen s/n, 21071 Huelva, Spain.
CIQSO, Robert H. Grubbs Building, University of Huelva, Campus El Carmen, E21071 Huelva, Spain; Department of Chemistry, Faculty of Experimental Sciences, University of Huelva, Campus El Carmen s/n, 21071 Huelva, Spain.
Sci Total Environ. 2020 Apr 20;714:136891. doi: 10.1016/j.scitotenv.2020.136891. Epub 2020 Jan 23.
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/m, and concentrations of up to 1.6 μg/m 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/m) 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.
氢氟酸（HF）是空气中毒性最大的气态化合物之一，其主要人为来源是工业活动，特别是肥料和废物。在 2014 年至 2017 年夏季和冬季期间，通过被动采样测量了西班牙西南部韦尔瓦市（Huelva）与附近主要磷石膏（PG）矿床相关的 HF 浓度，在 2017 年和 2017-2018 年期间使用 HF 分析仪进行了高分辨率采样。在 PG 池塘中发现了 HF 的地球化学异常，平均浓度高达 19.1μg/m，在最近的城市地区显示的浓度高达 1.6μg/m。这些浓度与 PG 矿床的 HF 排放有关。通过现场和实验室实验计算了排放因子，而卤水中的排放因子最高（2.7kg/ha/day）。在整个一年中，都记录到了城市中 HF（>0.1μg/m）的多个影响，这些影响发生在夏季中午和冬季雾天。因此，应该恢复 PG 系统，以保护居住在韦尔瓦的人口免受 HF 排放的影响。
