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Jaén C, Titos G, Castillo S, Casans A, Rejano F, Cazorla A, Herrero J, Alados-Arboledas L, Grimalt JO, van Drooge BL. Diurnal source apportionment of organic and inorganic atmospheric particulate matter at a high-altitude mountain site under summer conditions (Sierra Nevada; Spain). THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167178. [PMID: 37730028 DOI: 10.1016/j.scitotenv.2023.167178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/08/2023] [Accepted: 09/16/2023] [Indexed: 09/22/2023]
Abstract
High-altitude mountain areas are sentinel ecosystems for global environmental changes such as anthropogenic pollution. In this study, we report a source apportionment of particulate material with an aerodynamic diameter smaller than 10 μm (PM10) in a high-altitude site in southern Europe (Sierra Nevada Station; SNS (2500 m a.s.l.)) during summer 2021. The emission sources and atmospheric secondary processes that determine the composition of aerosol particles in Sierra Nevada National Park (Spain) are identified from the concentrations of organic carbon (OC), elemental carbon (EC), 12 major inorganic compounds, 18 trace elements and 44 organic molecular tracer compounds in PM10 filter samples collected during day- and nighttime. The multivariate analysis of the joint dataset resolved five main PM10 sources: 1) Saharan dust, 2) advection from the urbanized valley, 3) local combustion, 4) smoke from a fire-event, and 5) aerosol from regional recirculation with high contribution of particles from secondary inorganic and organic aerosol formation processes. PM sources were clearly associated with synoptic meteorological conditions, and day- and nighttime circulation patterns typical of mountainous areas. Although a local pollution source was identified, the contribution of this source to PM10, OC and EC was small. Our results evidence the strong influence of middle- and long-range transport of aerosols, mainly from anthropogenic origin, on the aerosol chemical composition at this remote site.
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Affiliation(s)
- Clara Jaén
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), c/Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Gloria Titos
- Andalusian Institute for Earth System Research (IISTA), University of Granada, Avenida del Mediterráneo sn, 18071 Granada, Spain; Department of Applied Physics, Sciences Faculty, University of Granada, Avenida Fuentenueva sn, 18071 Granada, Spain
| | - Sonia Castillo
- Andalusian Institute for Earth System Research (IISTA), University of Granada, Avenida del Mediterráneo sn, 18071 Granada, Spain; Department of Applied Physics, Sciences Faculty, University of Granada, Avenida Fuentenueva sn, 18071 Granada, Spain
| | - Andrea Casans
- Andalusian Institute for Earth System Research (IISTA), University of Granada, Avenida del Mediterráneo sn, 18071 Granada, Spain; Department of Applied Physics, Sciences Faculty, University of Granada, Avenida Fuentenueva sn, 18071 Granada, Spain
| | - Fernando Rejano
- Andalusian Institute for Earth System Research (IISTA), University of Granada, Avenida del Mediterráneo sn, 18071 Granada, Spain; Department of Applied Physics, Sciences Faculty, University of Granada, Avenida Fuentenueva sn, 18071 Granada, Spain
| | - Alberto Cazorla
- Andalusian Institute for Earth System Research (IISTA), University of Granada, Avenida del Mediterráneo sn, 18071 Granada, Spain; Department of Applied Physics, Sciences Faculty, University of Granada, Avenida Fuentenueva sn, 18071 Granada, Spain
| | - Javier Herrero
- Andalusian Institute for Earth System Research (IISTA), University of Granada, Avenida del Mediterráneo sn, 18071 Granada, Spain; Department of Applied Physics, Sciences Faculty, University of Granada, Avenida Fuentenueva sn, 18071 Granada, Spain
| | - Lucas Alados-Arboledas
- Andalusian Institute for Earth System Research (IISTA), University of Granada, Avenida del Mediterráneo sn, 18071 Granada, Spain; Department of Applied Physics, Sciences Faculty, University of Granada, Avenida Fuentenueva sn, 18071 Granada, Spain
| | - Joan O Grimalt
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), c/Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Barend L van Drooge
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), c/Jordi Girona 18-26, 08034 Barcelona, Spain.
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Pyambri M, Lacorte S, Jaumot J, Bedia C. Effects of Indoor Dust Exposure on Lung Cells: Association of Chemical Composition with Phenotypic and Lipid Changes in a 3D Lung Cancer Cell Model. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:20532-20541. [PMID: 38035630 PMCID: PMC10720387 DOI: 10.1021/acs.est.3c07573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 12/02/2023]
Abstract
Indoor dust is a key contributor to the global human exposome in urban areas since the population develops most of its activities in private and public buildings. To gain insight into the health risks associated with this chronic exposure, it is necessary to characterize the chemical composition of dust and understand its biological impacts using reliable physiological models. The present study investigated the biological effects of chemically characterized indoor dust extracts using three-dimensional (3D) lung cancer cell cultures combining phenotypic and lipidomic analyses. Apart from the assessment of cell viability, reactive oxygen species (ROS) induction, and interleukin-8 release, lipidomics was applied to capture the main lipid changes induced as a cellular response to the extracted dust compounds. The application of chemometric tools enabled the finding of associations between chemical compounds present in dust and lipidic and phenotypic profiles in the cells. This study contributes to a better understanding of the toxicity mechanisms associated with exposure to chemical pollutants present in indoor dust.
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Affiliation(s)
- Maryam Pyambri
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Sílvia Lacorte
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Joaquim Jaumot
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Carmen Bedia
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
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Silva TD, Alves C, Oliveira H, Duarte IF. Biological Impact of Organic Extracts from Urban-Air Particulate Matter: An In Vitro Study of Cytotoxic and Metabolic Effects in Lung Cells. Int J Mol Sci 2023; 24:16896. [PMID: 38069233 PMCID: PMC10706705 DOI: 10.3390/ijms242316896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Atmospheric particulate matter (PM) with diameters below 10 µm (PM10) may enter the lungs through inhalation and are linked to various negative health consequences. Emergent evidence emphasizes the significance of cell metabolism as a sensitive target of PM exposure. However, the current understanding of the relationship between PM composition, conventional toxicity measures, and the rewiring of intracellular metabolic processes remains limited. In this work, PM10 sampled at a residential area (urban background, UB) and a traffic-impacted location (roadside, RS) of a Portuguese city was comprehensively characterized in terms of polycyclic aromatic hydrocarbons and plasticizers. Epithelial lung cells (A549) were then exposed for 72 h to PM10 organic extracts and different biological outcomes were assessed. UB and RS PM10 extracts dose-dependently decreased cell viability, induced reactive oxygen species (ROS), decreased mitochondrial membrane potential, caused cell cycle arrest at the G0/G1 phase, and modulated the intracellular metabolic profile. Interestingly, the RS sample, richer in particularly toxic PAHs and plasticizers, had a greater metabolic impact than the UB extract. Changes comprised significant increases in glutathione, reflecting activation of antioxidant defences to counterbalance ROS production, together with increases in lactate, NAD+, and ATP, which suggest stimulation of glycolytic energy production, possibly to compensate for reduced mitochondrial activity. Furthermore, a number of other metabolic variations hinted at changes in membrane turnover and TCA cycle dynamics, which represent novel clues on potential PM10 biological effects.
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Affiliation(s)
- Tatiana D. Silva
- Department of Chemistry, CICECO—Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal;
- Department of Biology, CESAM—Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Célia Alves
- Department of Environment and Planning, CESAM—Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Helena Oliveira
- Department of Biology, CESAM—Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Iola F. Duarte
- Department of Chemistry, CICECO—Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal;
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