title: An estimation of mercury concentrations in the local atmosphere of Almadén (Ciudad Real Province, South Central Spain) during the twentieth century.
abstract: We show the first estimations of long-term (100 years, 1900 to 2000) total gaseous mercury concentrations (TGM) in the urban area of Almadén. The estimation was carried out by comparing data on known metallic mercury production with measured TGM concentrations. The estimated diurnal background level ranges from 60 to 120 ng m(-3) and corresponds to periods when the metallurgical complex (cinnabar roasting plant) was shut down. The average TGM concentration during the period from 1900 to 2000 was about 600 ng m(-3) (with peaks above 1,200 ng m(-3)). Additionally, a 24-h-based TGM monitoring program has highlighted significant differences between the diurnal and nocturnal concentrations, particularly during the warmer months. In this regard, given that the average nocturnal to diurnal ratio is 2.12, we suggest that the average nocturnal concentrations must have exceeded 1,200 ng m(-3), and peak nocturnal concentrations could have reached levels up to 2,400 ng m(-3). Our estimations indicate that most parts of the town of Almadén were generally exposed to TGM concentrations in air that exceed the World Health Organization air quality guideline for Hg (1,000 ng m(-3)) for countryside and urban areas.
authors.affiliation: Departamento de Mecánica Aplicada e Ingeniería de Proyectos, Universidad de Castilla-La Mancha, E.I.M.I. Almadén, 13400, Almadén, Ciudad Real, Spain, jose.tejero@uclm.es.
authors.forename: José
authors.initials: J
authors.lastname: Tejero
authors.forename: Pablo L
authors.initials: PL
authors.lastname: Higueras
authors.forename: Ignacio
authors.initials: I
authors.lastname: Garrido
authors.forename: José M
authors.initials: JM
authors.lastname: Esbrí
authors.forename: Roberto
authors.initials: R
authors.lastname: Oyarzun
authors.forename: Santiago
authors.initials: S
authors.lastname: Español
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D004784:Environmental Monitoring; D008628:Mercury / Q000032:analysis*; D008669:Metallurgy; D013030:Spain
chemical_list: D000393:Air Pollutants; D008628:Mercury
references.citation: Sci Total Environ. 2006 Mar 1;356(1-3):112-24
references.pmid: 15950266
references.citation: Int J Phytoremediation. 2011 Sep;13(8):765-78
references.pmid: 21972517
references.citation: Ambio. 2007 Feb;36(1):45-61
references.pmid: 17408190
references.citation: Environ Res. 2013 Aug;125:197-208
references.pmid: 23477566
references.citation: Environ Monit Assess. 2013 Nov;185(11):9125-38
references.pmid: 23657737
references.citation: J Environ Monit. 2010 Mar;12(3):689-95
references.pmid: 20445858
references.citation: Science. 1973 Jul 20;181(4096):230-41
references.pmid: 4719063
references.citation: Occup Environ Med. 2007 Jun;64(6):389-95
references.pmid: 17227836
references.citation: Chemosphere. 2012 Nov;89(11):1457-66
references.pmid: 22818090
references.citation: Sci Total Environ. 2006 Sep 1;368(1):79-87
references.pmid: 16343601
references.citation: Crit Rev Toxicol. 1995;25(1):1-24
references.pmid: 7734058
references.citation: Environ Sci Technol. 2010 Jun 15;44(12):4782-8
references.pmid: 20491469
references.citation: Environ Geochem Health. 2006 Oct;28(5):487-98
references.pmid: 17013679
references.citation: Environ Sci Technol. 2004 Aug 15;38(16):4285-92
references.pmid: 15382854
references.citation: Chemosphere. 2011 Jul;84(5):571-7
references.pmid: 21524785
references.citation: Sci Total Environ. 2010 Sep 15;408(20):4901-5
references.pmid: 20598346
references.citation: Sci Total Environ. 2003 Mar 20;304(1-3):13-27
references.pmid: 12663168