Particle-Bound Mercury Characterization in the Central Italian Herbarium of the Natural History Museum of the University of Florence (Italy)
| Autor: | Ciani F.[1], Chiarantini L.[1, Costagliola P.[1, Rimondi V.[1 |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Pollution
mercury 010504 meteorology & atmospheric sciences trace elements particulate matter indoor air quality pollution museum Health Toxicology and Mutagenesis media_common.quotation_subject chemistry.chemical_element TP1-1185 010501 environmental sciences Toxicology 01 natural sciences Article Indoor air quality Air quality index 0105 earth and related environmental sciences media_common Pollutant Chemical Health and Safety Chemical technology Particulates Contamination Mercury Museum Particulate matter Trace elements Mercury (element) Herbarium chemistry Environmental chemistry Environmental science |
| Zdroj: | Toxics, Vol 9, Iss 141, p 141 (2021) Toxics 9 (2021): 1–15. doi:10.3390/toxics9060141 info:cnr-pdr/source/autori:Ciani F.[1], Chiarantini L.[1,2],Costagliola P.[1,3], Rimondi V.[1,3]/titolo:Particle-bound mercury characterization in the central italian herbarium of the natural history museum of the University of Florence (Italy)/doi:10.3390%2Ftoxics9060141/rivista:Toxics/anno:2021/pagina_da:1/pagina_a:15/intervallo_pagine:1–15/volume:9 Toxics Toxics; Volume 9; Issue 6; Pages: 141 |
| ISSN: | 2305-6304 |
| DOI: | 10.3390/toxics9060141 |
| Popis: | Museums air quality can be negatively affected by treatments with heavy metals compounds employed to prevent pest infestations. Among these, the past use of mercury dichloride (HgCl2) on herbaria artifacts currently produces high levels of indoor atmospheric gaseous mercury (Hg0) and possibly of particulate bound Hg (PBM), i.e., the particulate matter containing Hg. This study evaluates the PBM pollution in the Central Italian Herbarium (Natural History Museum of the University of Florence, Italy), characterizing the size range and chemical speciation with SEM-EDS microanalysis. The analysis of the total Hg concentration in the samples allowed to calculate the workers exposure risk to this pollutant. PBM is almost totally classifiable as fine particulate with a significant dimensional increase in a period of scarce attendance of the Herbarium rooms. The microanalysis indicates that Hg is essentially bound to S, highlighting the change of Hg speciation from the original association with Cl. The average Hg concentration reveals a potential health risk for workers as result of multiple Hg exposure pathways, mainly by ingestion. The study provides information for characterizing PBM pollution that could affect a workplace atmosphere and a useful basis to evaluate and correctly design solution strategies to reduce the contamination levels and protect workers’ health. |
| Databáze: | OpenAIRE |
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