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Viteri G, Aranda A, Díaz de Mera Y, Rodríguez A, Rodríguez D, Rodríguez-Fariñas N, Valiente N, Seseña S. Effects of massive desiccation of olive waste residues on air quality. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 359:124542. [PMID: 39002752 DOI: 10.1016/j.envpol.2024.124542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/09/2024] [Accepted: 07/11/2024] [Indexed: 07/15/2024]
Abstract
New industries are proliferating in the recovery of agri-food wastes, such as those involved in the revaluation of alperujo, generated in the production of olive oil. Despite the potential environmental benefits, their activity is not exempt from new forms of emissions, aggravated by the massification of waste treatments. This work reports a six-month field campaign carried out in an alperujo desiccation plant which can serve as a proxy for these emerging industries in the Mediterranean countries. The study focused on air quality parameters, covering criteria pollutants, metals and microbiological load of particulate matter and the characterization of volatile organic compounds (VOCs). The results show a slight contribution of the factory to the NOx levels in the surroundings (3.0-12.5 μg/m3). Statistically significant effects were not observed for ozone, CO, SO2, or PM10. Concerning the levels of metals, concentrations were low and calculated health risk indexes indicated safe conditions in the area. The most abundant elements were Na (6.5 × 102 ng/m3), K (4.0 × 102 ng/m3), Al (2.7 × 102 ng/m3), Zn (2.1 × 102 ng/m3), Ca (2.16 × 102 ng/m3), Fe (3.6 × 101 ng/m3) and Mg (3.2 × 101 ng/m3). Bacterial counts, with a mean value of 15.9 CFU/m3, showed a seasonal shift, mainly explained by weather (air moisture and temperature) and PM2.5 concentration. The genomic analysis showed Cutibacterium as the dominant genus during the cold months while Bacillus predominated in the warm season. The VOCs with higher average concentrations were acetic acid (130 μg/m3), nonanoic acid (124 μg/m3), benzoic acid (29.7 μg/m3), octanoic acid (19.9 μg/m3) and nonanal (4.70 μg/m3), with the rest of compounds in concentrations below 4 μg/m3. Odorant pollutants with the greatest contribution to olfactory nuisance were aldehydes (from pentanaldehyde to decanaldehyde), acetic acid and phenol. Although the observable effects of the waste treatments were low, several parameters showed an influence on the environment which should be assessed to foresee and prevent long-term consequences.
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Affiliation(s)
- Gabriela Viteri
- Facultad de Ciencias y Tecnologías Químicas, Avenida Camilo José Cela s/n, 13071, Ciudad Real, Spain
| | - Alfonso Aranda
- Facultad de Ciencias y Tecnologías Químicas, Avenida Camilo José Cela s/n, 13071, Ciudad Real, Spain.
| | - Yolanda Díaz de Mera
- Facultad de Ciencias y Tecnologías Químicas, Avenida Camilo José Cela s/n, 13071, Ciudad Real, Spain
| | - Ana Rodríguez
- Facultad de Ciencias Ambientales y Bioquímica, Avenida Carlos III s/n, 45071, Toledo, Spain
| | - Diana Rodríguez
- Facultad de Ciencias Ambientales y Bioquímica, Avenida Carlos III s/n, 45071, Toledo, Spain
| | | | - Nicolás Valiente
- Departamento de Ciencia y Tecnología Agroforestal y Genética, Campus Universitario s/n, 02071, Albacete, Spain
| | - Susana Seseña
- Facultad de Ciencias Ambientales y Bioquímica, Avenida Carlos III s/n, 45071, Toledo, Spain
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Schiavo B, Morton-Bermea O, Salgado-Martinez E, Hernández-Álvarez E. Evaluation of possible impact on human health of atmospheric mercury emanations from the Popocatépetl volcano. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2020; 42:3717-3729. [PMID: 32508002 DOI: 10.1007/s10653-020-00610-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
The contribution of Hg from volcanic emanations is decisive for assessing global mercury emissions given the impact of this highly toxic contaminant on human health and ecosystems. Atmospheric Hg emissions from Popocatépetl volcano and their dispersion were evaluated carrying out two gaseous elemental mercury (GEM) surveys during a period of intense volcanic activity. Continuous GEM measurements were taken for 24 h using a portable mercury vapor analyzer (Lumex RA-915M) at the Altzomoni Atmospheric Observatory (AAO), 11 km from the crater. In addition, a long-distance survey to measure GEM was conducted during an automobile transect around the volcano, covering a distance of 129 km. The evaluation of the GEM data registered in the fixed location showed that heightened volcanic activity clearly intensifies the concentration of atmospheric Hg, extreme values around 5 ng m-3. Highest concentrations of GEM recorded during the mobile survey were about 10 ng m-3. In both surveys, the recorded concentrations during most of the measurement time were below 2 ng m-3, but measurements were taken at a considerable distance from the crater, and GEM is subject to dilution processes. During both surveys, recorded GEM did not exceed the 200 ng m-3 concentration recommended by the WHO (Air quality guidelines for Europe, 2000) as the regulatory limits for Hg in the atmospheric environment for long-term inhalation. Because this study was carried out in inhabited areas around the volcano during a period of intense volcanic activity, it can be concluded that the Popocatépetl does not represent a risk to human health in terms of Hg.
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Affiliation(s)
- B Schiavo
- Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Mexico City, Mexico.
| | - O Morton-Bermea
- Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Mexico City, Mexico
| | - E Salgado-Martinez
- Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Mexico City, Mexico
| | - E Hernández-Álvarez
- Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Mexico City, Mexico
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Naharro R, Esbrí JM, Amorós JA, Higueras PL. Experimental assessment of the daily exchange of atmospheric mercury in Epipremnum aureum. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2020; 42:3185-3198. [PMID: 32303945 DOI: 10.1007/s10653-020-00557-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 04/02/2020] [Indexed: 05/26/2023]
Abstract
Mercury (Hg) exchange at the plant leaf-atmosphere interface is an important issue when considering vegetation as a sink or source of this global pollutant. The aim of the study described here was to clarify this process by studying Hg exchange under laboratory conditions with a plant model, namely Epipremnum aureum. The desorption and absorption processes were studied under similar conditions in natural daylight. Hg exchange was measured at the foliar surface, and micrometeorological parameters and stomatal conductance were assessed. The results of the Hg exchange study showed different rhythms for the two processes, i.e. desorption (14-196 ng m-2 day-1) was slower than absorption (170-1341 ng m-2 day-1). The daily cycle was more complex in the desorption process, with a maximum when stomatal conductance was high but also with high values during nocturnal hours and a trend to absorption in the mornings. The daily absorption cycles were relatively simple, with values that coincided with positive stomatal conductance values and null values during nocturnal hours. The main factors involved in desorption were stomatal conductance and temperature, but other factors may need to be considered. The absorption process only involved total gaseous Hg, stomatal conductance and relative humidity. A net balance of the two experiments provided data on the amount of Hg transferred per unit leaf area (167 ng m-2 for desorption and 9213 ng m-2 for absorption), which implies total amounts of 23 ng of Hg desorbed and 1280 ng absorbed during the whole experiment. Finally, the reversible/non-reversible nature of the Hg exchange process must be reconsidered bearing in mind that Hg within the leaf can be emitted if changes in ambient conditions are appropriate to favour this process.
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Affiliation(s)
- Rocio Naharro
- Instituto de Geología Aplicada, Escuela de Ingeniería Minera e Industrial de Almadén (EIMIA), Universidad de Castilla-La Mancha, Plaza Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain
- Instituto de Geología Aplicada, Escuela Técnica Superior de Ingenieros Agrónomos de Ciudad Real, Universidad de Castilla-La Mancha, Ciudad Real, Ciudad Real, Spain
| | - José María Esbrí
- Instituto de Geología Aplicada, Escuela de Ingeniería Minera e Industrial de Almadén (EIMIA), Universidad de Castilla-La Mancha, Plaza Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain.
| | - José Angel Amorós
- Instituto de Geología Aplicada, Escuela Técnica Superior de Ingenieros Agrónomos de Ciudad Real, Universidad de Castilla-La Mancha, Ciudad Real, Ciudad Real, Spain
| | - Pablo L Higueras
- Instituto de Geología Aplicada, Escuela de Ingeniería Minera e Industrial de Almadén (EIMIA), Universidad de Castilla-La Mancha, Plaza Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain
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Rodríguez-Estival J, Morales-Machuca C, Pareja-Carrera J, Ortiz-Santaliestra ME, Mateo R. Food safety risk assessment of metal pollution in crayfish from two historical mining areas: Accounting for bioavailability and cooking extractability. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 185:109682. [PMID: 31557570 DOI: 10.1016/j.ecoenv.2019.109682] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 09/12/2019] [Accepted: 09/15/2019] [Indexed: 06/10/2023]
Abstract
Here we characterize the bioaccumulation of mercury (Hg) and lead (Pb) in red swamp crayfish (Procambarus clarkii) from two river courses in Central Spain that are impacted by historical Hg and Pb mining activities, respectively. We estimate the absolute oral bioavailability of metals in crayfish tissues by means of in vitro bioaccessibility simulations, and assess whether their consumption may imply a health risk for humans by estimating target hazard quotients and safe consumption rates. We also study the effect of cooking crayfish on the mobilization of the metal body burden in the context of the traditional Spanish cuisine. The results showed that crayfish from the mining districts accumulated a high level of Hg and Pb pollution in both the tail muscle and the carcass. The in vitro bioaccessibility of Hg and Pb in the edible part was 27.86 ± 4.05 and 33.73 ± 5.91%, respectively. Absolute bioavailability was estimated to be 38.31 for Hg, and 20.21 (adults) and 67.35% (children) for Pb. Risk indices indicated that, even after adjusting for bioavailability, it is not safe to consume crayfish from the mining-impacted rivers because of their high levels of Hg and Pb. Using the carcass as a condiment for flavouring should also be avoided. The cooking procedure extracted relatively small amounts of the total Hg (8.92 ± 2.13%) and Pb (1.68 ± 0.29%) body burden. Further research that will support human and ecological risk assessment, along with the implementation of advisory measures for the local population as regards crayfish consumption, are recommended.
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Affiliation(s)
- Jaime Rodríguez-Estival
- Instituto de Investigación en Recursos Cinegéticos (IREC - CSIC, UCLM, JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain.
| | - Carlos Morales-Machuca
- Instituto de Investigación en Recursos Cinegéticos (IREC - CSIC, UCLM, JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain.
| | - Jennifer Pareja-Carrera
- Instituto de Investigación en Recursos Cinegéticos (IREC - CSIC, UCLM, JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain.
| | - Manuel E Ortiz-Santaliestra
- Instituto de Investigación en Recursos Cinegéticos (IREC - CSIC, UCLM, JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain.
| | - Rafael Mateo
- Instituto de Investigación en Recursos Cinegéticos (IREC - CSIC, UCLM, JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain.
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Barquero JI, Rojas S, Esbrí JM, García-Noguero EM, Higueras P. Factors influencing mercury uptake by leaves of stone pine (Pinus pinea L.) in Almadén (Central Spain). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:3129-3137. [PMID: 29090438 DOI: 10.1007/s11356-017-0446-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 10/09/2017] [Indexed: 06/07/2023]
Abstract
The use of trees for biomonitoring of mercury (Hg) and other atmospheric pollutants is of increasing importance today. Leaves from different species have been the most widely used plant organ for this purpose, but only pine bark, and not leaves, was used to monitor Hg pollution. In Almadén (South Central Spain), the largest cinnabar (HgS) deposits in the world have been mined for over 2000 years to obtain metallic Hg and this activity has caused the widespread dispersion of this toxic element in the local environment. A strip of pine trees, 2750 m in length, adjacent and to the South of the mining town has been studied in order to evaluate pine tree needles as monitors for Hg contamination in this heavily polluted area. The study involved the collection of pine tree leaves from several discrete sites along the strip, as well as samples from other nearby locations, together with soil samples and monitoring of atmospheric Hg in the area during both the day and night. Leaves and soils were analyzed for total Hg concentration by means of atomic absorption spectrometry; the leachable fraction of soil Hg was also analyzed by the CV-AFS technique. The results indicate that soils from the investigated area were not directly affected by mining related pollution, with low total Hg levels (3-280 mg kg-1) found in comparison with the nearby Almadén metallurgical precinct and very low leachable Hg contents (0.27-59.65 mg kg-1) were found. Moreover, pine tree needles have a low uptake capacity, with lower THg levels (0.03-6.68 mg kg-1) when compared to those of olive trees in Almadén. However, pine needles do show significant variability with regard to the distance from the source. Gaseous Hg exhibits a similar pattern, with higher levels close to the source, especially during night time (225 ng m-3). A multiple linear regression analysis (MLRA) revealed that gaseous Hg in the nocturnal period is the prime factor that influences the amount of Hg uptake by pine tree needles. This finding makes pine needles a promising candidate to biomonitor gaseous Hg on a local or regional scale worldwide. Almadén pine tree needles have been exposed to a number of different Hg sources, including the primary one, namely the old mine dump, and secondary sources such as polluted roads or illegal urban residual waste. The secondary sources cause some minor discrepancies in the model established by the MRLA. The biomonitoring capacity of pine needles needs to be evaluated in areas far from the source. The process involved in gaseous Hg uptake by pine needles appears more likely to involve sorption in the external part of the needle than uptake through stomas, thus making this process strongly dependent on high atmospheric Hg concentrations.
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Affiliation(s)
- José Ignacio Barquero
- Instituto de Geología Aplicada, Escuela de Ingeniería Minera e Industrial de Almadén, Universidad de Castilla-La Mancha, Pl. Manuel Meca 1, 13400, Almadén, Ciudad Real, Spain
| | - Sofía Rojas
- Universidad Andrés Bello, Santiago de Chile, Chile
| | - José María Esbrí
- Instituto de Geología Aplicada, Escuela de Ingeniería Minera e Industrial de Almadén, Universidad de Castilla-La Mancha, Pl. Manuel Meca 1, 13400, Almadén, Ciudad Real, Spain
| | - Eva M García-Noguero
- Instituto de Geología Aplicada, Escuela de Ingeniería Minera e Industrial de Almadén, Universidad de Castilla-La Mancha, Pl. Manuel Meca 1, 13400, Almadén, Ciudad Real, Spain
| | - Pablo Higueras
- Instituto de Geología Aplicada, Escuela de Ingeniería Minera e Industrial de Almadén, Universidad de Castilla-La Mancha, Pl. Manuel Meca 1, 13400, Almadén, Ciudad Real, Spain.
- EIMIA, Plaza Manuel Meca, 1., 13500, Almadén, Ciudad Real, Spain.
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Campos JA, Esbrí JM, Madrid MM, Naharro R, Peco J, García-Noguero EM, Amorós JA, Moreno MM, Higueras P. Does mercury presence in soils promote their microbial activity? The Almadenejos case (Almadén mercury mining district, Spain). CHEMOSPHERE 2018; 201:799-806. [PMID: 29550574 DOI: 10.1016/j.chemosphere.2018.02.163] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/02/2018] [Accepted: 02/26/2018] [Indexed: 06/08/2023]
Abstract
Mercury is considered a very toxic element and important efforts are currently being made aimed at reduce or even eliminating its usage. Despite this trend, there are still sites where contamination by this metal is very marked, especially in the mining environment of Almadén where it has been exploited for thousands of years. The several forms in which Hg occurs in the soil interact differently with the organisms that live in/on it. The soil is a place where many biotic and abiotic variables act together. Through a detailed study of the edaphic characteristics of a decommissioned metallurgical enclosure, the presence of different chemical forms of Hg, the study of microbial activity (DHA) and, finally, parameters of the vegetation cover, such as specific distribution and biomass, we have tried to elucidate the effect of the presence of Hg in this precinct with a very high Hg pollution. The obtained results showed the affection patterns by which the different measured parameters vary, with special incidence to the microbial activity of the topsoil and to the specific distribution of the plants found in the studied area. The statistical multivariate analysis showed that significant correlations have been found between soil Hg fractions and between Hg fractions in plants; furthermore, soil conditions seem to be not related with Hg transfer from soils to plants. Biomass and DHA data indicate that the studied area is not affected by the presence of Hg species and lacks the expected toxic effects on the living organisms.
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Affiliation(s)
- J A Campos
- Instituto de Geología Aplicada, IGeA. Universidad de Castilla-La Mancha. Plaza de Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain; Escuela de Ingenieros Agrónomos, Universidad de Castilla-La Mancha. Ronda de Calatrava, 7, 13071, Ciudad Real, Spain
| | - J M Esbrí
- Instituto de Geología Aplicada, IGeA. Universidad de Castilla-La Mancha. Plaza de Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain; Escuela de Ingeniería Minera e Industrial de Almadén. Plaza de Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain
| | - M M Madrid
- Escuela de Ingeniería Minera e Industrial de Almadén. Plaza de Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain
| | - R Naharro
- Instituto de Geología Aplicada, IGeA. Universidad de Castilla-La Mancha. Plaza de Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain; Escuela de Ingeniería Minera e Industrial de Almadén. Plaza de Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain
| | - J Peco
- Instituto de Geología Aplicada, IGeA. Universidad de Castilla-La Mancha. Plaza de Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain; Escuela de Ingenieros Agrónomos, Universidad de Castilla-La Mancha. Ronda de Calatrava, 7, 13071, Ciudad Real, Spain
| | - E M García-Noguero
- Instituto de Geología Aplicada, IGeA. Universidad de Castilla-La Mancha. Plaza de Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain; Escuela de Ingeniería Minera e Industrial de Almadén. Plaza de Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain
| | - J A Amorós
- Instituto de Geología Aplicada, IGeA. Universidad de Castilla-La Mancha. Plaza de Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain; Escuela de Ingenieros Agrónomos, Universidad de Castilla-La Mancha. Ronda de Calatrava, 7, 13071, Ciudad Real, Spain
| | - M M Moreno
- Escuela de Ingenieros Agrónomos, Universidad de Castilla-La Mancha. Ronda de Calatrava, 7, 13071, Ciudad Real, Spain
| | - P Higueras
- Instituto de Geología Aplicada, IGeA. Universidad de Castilla-La Mancha. Plaza de Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain; Escuela de Ingeniería Minera e Industrial de Almadén. Plaza de Manuel Meca, 1, 13400, Almadén, Ciudad Real, Spain.
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Esbrí JM, Cacovean H, Higueras P. Usage Proposal of a common urban decorative tree (Salix alba L.) to monitor the dispersion of gaseous mercury: A case study from Turda (Romania). CHEMOSPHERE 2018; 193:74-81. [PMID: 29127837 DOI: 10.1016/j.chemosphere.2017.11.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/30/2017] [Accepted: 11/02/2017] [Indexed: 06/07/2023]
Abstract
Closure of chloralkali plants poses a risk of abandonment of important sources of gaseous mercury. In this work, an assessment has been made of the potential for pollution from one of these plants in the proximity of a densely populated town in central Romania. The work involved a comparison between two major types of monitoring survey: biomonitoring using leaves of a tree common in urban environments; and LUMEX-based gaseous mercury analysis. For biomonitoring, 21 samples from Salix alba L. trees were taken in Turda area. Atmospheric monitoring included two mobile surveys and one at a fixed location. The results from both monitoring systems show similarities in gaseous mercury dispersion patterns, with high mercury contents clearly related to the presence of the chloralkali plant. Particularly high levels were measured in the following situations: (i) in a 'smog' area related with thermal inversion and (ii) during dusk. Direct monitoring suffered from limitations in acquiring information, especially in a medium-long time range, but biomonitoring provided these data and is capable of covering studies on temporary trends or comparative assessments between European cities with contrasting gaseous mercury sources. The thermal speciation of mercury contents indicates that the whole fraction of mercury in leaves corresponds to organic mercury. This finding implies a non-reversible uptake process, which in turn ensures the applicability of this technique to biomonitor long-term exposure. As a conclusion, the assessment of gaseous mercury pollution based on biomonitoring using S. alba has proven to be a useful, reliable and cost-effective methodology.
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Affiliation(s)
- J M Esbrí
- Instituto de Geología Aplicada, Universidad de Castilla-La Mancha, Pl. Manuel Meca 1, 13400 Almadén, Ciudad Real, Spain
| | - H Cacovean
- Oficiul Pentru Studii Pedologice Si Agrochimice Cluj, Street Fagului 1, Cluj-Napoca, Judetul Cluj, Romania
| | - P Higueras
- Instituto de Geología Aplicada, Universidad de Castilla-La Mancha, Pl. Manuel Meca 1, 13400 Almadén, Ciudad Real, Spain.
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Higueras PL, Sáez-Martínez FJ, Reyes-Bozo L. Characterization and remediation of contamination: the influences of mining and other human activities. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:5997-6001. [PMID: 26983808 DOI: 10.1007/s11356-016-6388-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 02/29/2016] [Indexed: 06/05/2023]
Affiliation(s)
- Pablo L Higueras
- Departamento de Ingeniería Geológica y Minera, Escuela de Ingeniería Minera e Industrial de Almadén, Universidad de Castilla-La Mancha, Plaza de Manuel Meca, 1, 13400, Ciudad Real, Spain
| | - Francisco J Sáez-Martínez
- Campus de Excelencia Internacional CYTEMA, Vicerrectorado de Investigación y Política Científica, Universidad de Castilla-La Mancha, Plaza de la Universidad, 2, 02071, Albacete, Spain.
| | - Lorenzo Reyes-Bozo
- Dirección de Investigación, Universidad Central de Chile, Toesca 1783, floor 2, Santiago, Chile
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