Particle-Bound Mercury Characterization in the <i>Central Italian Herbarium</i> of the Natural History Museum of the University of Florence (Italy)
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 (HgCl<sub>2</sub>) on herbaria artifacts currently produces high levels of indoor atmospheric gaseous mercury (H...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Toxics |
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| Online Access: | https://www.mdpi.com/2305-6304/9/6/141 |
| _version_ | 1797530093932773376 |
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| author | Francesco Ciani Laura Chiarantini Pilario Costagliola Valentina Rimondi |
| author_facet | Francesco Ciani Laura Chiarantini Pilario Costagliola Valentina Rimondi |
| author_sort | Francesco Ciani |
| collection | DOAJ |
| description | 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 (HgCl<sub>2</sub>) on herbaria artifacts currently produces high levels of indoor atmospheric gaseous mercury (Hg<sup>0</sup>) and possibly of particulate bound Hg (PBM), i.e., the particulate matter containing Hg. This study evaluates the PBM pollution in the <i>Central Italian Herbarium</i> (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 <i>Herbarium</i> 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. |
| first_indexed | 2024-03-10T10:24:03Z |
| format | Article |
| id | doaj.art-0d8f0a0d648148d7ab2bb9faa120ec6f |
| institution | Directory Open Access Journal |
| issn | 2305-6304 |
| language | English |
| last_indexed | 2024-03-10T10:24:03Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Toxics |
| spelling | doaj.art-0d8f0a0d648148d7ab2bb9faa120ec6f2023-11-22T00:09:04ZengMDPI AGToxics2305-63042021-06-019614110.3390/toxics9060141Particle-Bound Mercury Characterization in the <i>Central Italian Herbarium</i> of the Natural History Museum of the University of Florence (Italy)Francesco Ciani0Laura Chiarantini1Pilario Costagliola2Valentina Rimondi3Dipartimento di Scienze della Terra, Università di Firenze, Via G. La Pira 4, 50121 Firenze, ItalyDipartimento di Scienze della Terra, Università di Firenze, Via G. La Pira 4, 50121 Firenze, ItalyDipartimento di Scienze della Terra, Università di Firenze, Via G. La Pira 4, 50121 Firenze, ItalyDipartimento di Scienze della Terra, Università di Firenze, Via G. La Pira 4, 50121 Firenze, ItalyMuseums 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 (HgCl<sub>2</sub>) on herbaria artifacts currently produces high levels of indoor atmospheric gaseous mercury (Hg<sup>0</sup>) and possibly of particulate bound Hg (PBM), i.e., the particulate matter containing Hg. This study evaluates the PBM pollution in the <i>Central Italian Herbarium</i> (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 <i>Herbarium</i> 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.https://www.mdpi.com/2305-6304/9/6/141mercurytrace elementsparticulate matterindoor air qualitypollutionmuseum |
| spellingShingle | Francesco Ciani Laura Chiarantini Pilario Costagliola Valentina Rimondi Particle-Bound Mercury Characterization in the <i>Central Italian Herbarium</i> of the Natural History Museum of the University of Florence (Italy) Toxics mercury trace elements particulate matter indoor air quality pollution museum |
| title | Particle-Bound Mercury Characterization in the <i>Central Italian Herbarium</i> of the Natural History Museum of the University of Florence (Italy) |
| title_full | Particle-Bound Mercury Characterization in the <i>Central Italian Herbarium</i> of the Natural History Museum of the University of Florence (Italy) |
| title_fullStr | Particle-Bound Mercury Characterization in the <i>Central Italian Herbarium</i> of the Natural History Museum of the University of Florence (Italy) |
| title_full_unstemmed | Particle-Bound Mercury Characterization in the <i>Central Italian Herbarium</i> of the Natural History Museum of the University of Florence (Italy) |
| title_short | Particle-Bound Mercury Characterization in the <i>Central Italian Herbarium</i> of the Natural History Museum of the University of Florence (Italy) |
| title_sort | particle bound mercury characterization in the i central italian herbarium i of the natural history museum of the university of florence italy |
| topic | mercury trace elements particulate matter indoor air quality pollution museum |
| url | https://www.mdpi.com/2305-6304/9/6/141 |
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