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  1. Article: Characterization of water-soluble ions in PM

    Rojano, Roberto / Arregocés, Heli A / Restrepo, Gloria

    Heliyon

    2024  Volume 10, Issue 6, Page(s) e28159

    Abstract: This study was designed to assess the concentrations of nine water-soluble ions in ... ...

    Abstract This study was designed to assess the concentrations of nine water-soluble ions in PM
    Language English
    Publishing date 2024-03-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e28159
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Health risk assessment for particulate matter: application of AirQ+ model in the northern Caribbean region of Colombia.

    Arregocés, Heli A / Rojano, Roberto / Restrepo, Gloria

    Air quality, atmosphere, & health

    2023  Volume 16, Issue 5, Page(s) 897–912

    Abstract: Air pollution is considered the world's most important environmental and public health risk. The annual exposure for particulate matter (PM) in the northern Caribbean region of Colombia between 2011 and 2019 was determined using PM records from 25 ... ...

    Abstract Air pollution is considered the world's most important environmental and public health risk. The annual exposure for particulate matter (PM) in the northern Caribbean region of Colombia between 2011 and 2019 was determined using PM records from 25 monitoring stations located within the area. The impact of exposure to particulate matter was assessed through the updated Global Burden of Disease health risk functions using the AirQ+ model for mortality attributable to acute lower respiratory disease (in children ≤ 4 years); mortality in adults aged > 18 years old attributable to chronic obstructive pulmonary disease, ischaemic heart disease, lung cancer, and stroke; and all-cause post-neonatal infant mortality. The proportions of the prevalence of bronchitis in children and the incidence of chronic bronchitis in adults attributable to PM exposure were also estimated for the population at risk. Weather Research and Forecasting-California PUFF (WRF-CALPUFF) modeling systems were used to estimate the spatiotemporal trends and calculate mortality relative risk due to prolonged PM
    Supplementary information: The online version contains supplementary material available at 10.1007/s11869-023-01304-5.
    Language English
    Publishing date 2023-02-15
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2424084-9
    ISSN 1873-9326 ; 1873-9318
    ISSN (online) 1873-9326
    ISSN 1873-9318
    DOI 10.1007/s11869-023-01304-5
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  3. Article ; Online: Meteorological factors contributing to organic and elemental carbon concentrations in PM

    Arregocés, Heli A / Rojano, Roberto / Restrepo, Gloria

    Environmental science and pollution research international

    2022  Volume 29, Issue 19, Page(s) 28854–28865

    Abstract: Variations in the carbonaceous aerosol contents, organic carbon (OC) and elemental carbon (EC), in particulate matter less than 10 μm in size ( ... ...

    Abstract Variations in the carbonaceous aerosol contents, organic carbon (OC) and elemental carbon (EC), in particulate matter less than 10 μm in size (PM
    MeSH term(s) Aerosols/analysis ; Air Pollutants/analysis ; Carbon/analysis ; China ; Coal/analysis ; Environmental Monitoring ; Particle Size ; Particulate Matter/analysis ; Seasons ; Wind
    Chemical Substances Aerosols ; Air Pollutants ; Coal ; Particulate Matter ; Carbon (7440-44-0)
    Language English
    Publishing date 2022-01-06
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-18505-7
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  4. Article: Changes in ambient particulate matter during the COVID-19 and associations with biomass burning and Sahara dust in northern Colombia.

    Rojano, Roberto / Arregocés, Heli / Gámez Frías, Eider

    Heliyon

    2021  Volume 7, Issue 12, Page(s) e08595

    Abstract: The restriction of mobility due to preventive social isolation has improved air quality in many regions of the world. At the same time, global and regional atmospheric phenomena such as biomass burning or dust transport from Sahara can exacerbate ... ...

    Abstract The restriction of mobility due to preventive social isolation has improved air quality in many regions of the world. At the same time, global and regional atmospheric phenomena such as biomass burning or dust transport from Sahara can exacerbate particulate matter (PM) mass. In this study, PM
    Language English
    Publishing date 2021-12-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2021.e08595
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Changes in ambient particulate matter during the COVID-19 and associations with biomass burning and Sahara dust in northern Colombia

    Rojano, Roberto / Arregocés, Heli / Gámez Frías, Eider

    Heliyon. 2021 Dec., v. 7, no. 12

    2021  

    Abstract: The restriction of mobility due to preventive social isolation has improved air quality in many regions of the world. At the same time, global and regional atmospheric phenomena such as biomass burning or dust transport from Sahara can exacerbate ... ...

    Abstract The restriction of mobility due to preventive social isolation has improved air quality in many regions of the world. At the same time, global and regional atmospheric phenomena such as biomass burning or dust transport from Sahara can exacerbate particulate matter (PM) mass. In this study, PM₁₀ and PM₂.₅ concentrations were evaluated in industrial and urban areas during the lockdown period due to COVID-19 in northern Colombia. Aerosol Optical Depth (AOD) observations obtained from the spaceborne MODIS (MOD04-3k) and the active fire data was obtained from VIIRS Active Fire. We measured surface contamination at several stations to quantify the PM₁₀ and PM₂.₅ changes associated with the general closure of anthropogenic and industrial activities driven by COVID-19 and by the macroscale and/or mesoscale contributions. In the industrial zone, a slight decrease in daily concentrations was detected at the stations located near the mining operations. In the urban area, the decrease is more salient in COVID-19 lockdown. A reduction rate in the daily averages of PM10 of 23.3%, 6.0%, and 19.0% was observed in the SCa, SBi, and SUn stations, respectively. The biomass burning episode has contributed 52% to the daily average of PM₁₀ and 45% to the daily average of PM₂.₅. The episode due to the passage of Saharan dust through the Caribbean Sea has contributed 79% to the daily average of PM₁₀ (150.75 μg/m³) and on 57% to the daily average of PM₂.₅.
    Keywords COVID-19 infection ; aerosols ; air quality ; biomass ; dust ; particulates ; urban areas ; Caribbean Sea ; Colombia
    Language English
    Dates of publication 2021-12
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2021.e08595
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  6. Article ; Online: Impact of lockdown on particulate matter concentrations in Colombia during the COVID-19 pandemic.

    Arregocés, Heli A / Rojano, Roberto / Restrepo, Gloria

    The Science of the total environment

    2020  Volume 764, Page(s) 142874

    Abstract: The first confirmed case of COVID-19 in Colombia was reported on March 6, 2020. For this reason, on March 25, preventive isolation was declared mandatory. These measures involved the suspension of economic activities and drastically reduced the number of ...

    Abstract The first confirmed case of COVID-19 in Colombia was reported on March 6, 2020. For this reason, on March 25, preventive isolation was declared mandatory. These measures involved the suspension of economic activities and drastically reduced the number of vehicles on the road. The objective of this study is to evaluate the impact of the lockdown due to the COVID-19 pandemic on PM
    MeSH term(s) Air Pollutants/analysis ; Air Pollution/analysis ; COVID-19 ; China ; Colombia ; Communicable Disease Control ; Environmental Monitoring ; Humans ; India ; Pandemics ; Particulate Matter/analysis ; SARS-CoV-2
    Chemical Substances Air Pollutants ; Particulate Matter
    Keywords covid19
    Language English
    Publishing date 2020-10-10
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2020.142874
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 949: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  7. Article ; Online: Meteorological factors contributing to organic and elemental carbon concentrations in PM10 near an open-pit coal mine

    Arregocés, Heli A. / Rojano, Roberto / Restrepo, Gloria

    Environ Sci Pollut Res. 2022 Apr., v. 29, no. 19 p.28854-28865

    2022  

    Abstract: Variations in the carbonaceous aerosol contents, organic carbon (OC) and elemental carbon (EC), in particulate matter less than 10 μm in size (PM₁₀), were analyzed at sites influenced by coal mining in an open-pit mine located in northern Colombia. ... ...

    Abstract Variations in the carbonaceous aerosol contents, organic carbon (OC) and elemental carbon (EC), in particulate matter less than 10 μm in size (PM₁₀), were analyzed at sites influenced by coal mining in an open-pit mine located in northern Colombia. Samples were collected during different seasonal periods throughout 2015. Meteorological variables for each site were examined during the different seasons. Aerosols were detected using a thermal-optical reflectance protocol method. The highest PM₁₀ concentrations, between the ranges of 28.2 ± 8.2 μg m⁻³ and 75.0 ± 36.5 μg m⁻³, were recorded during the dry season. However, the highest concentrations of OC (4.8–14.2 μg m⁻³) and EC (2.9–13.9 μg m⁻³) in PM₁₀ were observed during the transition period between the dry and wet seasons. The strong correlation between OC and EC in PM₁₀ (r = 0.6–1.0) during the transition season indicates a common primary combustion source. High OC (> 8.3 μg m⁻³) and EC (> 6.9 μg m⁻³) concentrations were associated with low wind speeds (< 2.1 m s⁻¹) moving in different directions. Analyses of the sources of atmospheric aerosol pollutants in the mining area in northern Colombia showed that the daily maximum total carbon concentrations were mainly associated with regional atmospheric transport of particulate matter from industrial areas and biomass burning sites located in the territory of Venezuela.
    Keywords aerosols ; biomass ; coal ; combustion ; dry season ; organic carbon ; particulates ; reflectance ; wind ; Colombia ; Venezuela
    Language English
    Dates of publication 2022-04
    Size p. 28854-28865.
    Publishing place Springer Berlin Heidelberg
    Document type Article ; Online
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-18505-7
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

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  8. Article ; Online: Changes in ambient particulate matter during the COVID-19 and associations with biomass burning and Sahara dust in northern Colombia

    Roberto Rojano / Heli Arregocés / Eider Gámez Frías

    Heliyon, Vol 7, Iss 12, Pp e08595- (2021)

    2021  

    Abstract: The restriction of mobility due to preventive social isolation has improved air quality in many regions of the world. At the same time, global and regional atmospheric phenomena such as biomass burning or dust transport from Sahara can exacerbate ... ...

    Abstract The restriction of mobility due to preventive social isolation has improved air quality in many regions of the world. At the same time, global and regional atmospheric phenomena such as biomass burning or dust transport from Sahara can exacerbate particulate matter (PM) mass. In this study, PM10 and PM2.5 concentrations were evaluated in industrial and urban areas during the lockdown period due to COVID-19 in northern Colombia. Aerosol Optical Depth (AOD) observations obtained from the spaceborne MODIS (MOD04-3k) and the active fire data was obtained from VIIRS Active Fire. We measured surface contamination at several stations to quantify the PM10 and PM2.5 changes associated with the general closure of anthropogenic and industrial activities driven by COVID-19 and by the macroscale and/or mesoscale contributions. In the industrial zone, a slight decrease in daily concentrations was detected at the stations located near the mining operations. In the urban area, the decrease is more salient in COVID-19 lockdown. A reduction rate in the daily averages of PM10 of 23.3%, 6.0%, and 19.0% was observed in the SCa, SBi, and SUn stations, respectively. The biomass burning episode has contributed 52% to the daily average of PM10 and 45% to the daily average of PM2.5. The episode due to the passage of Saharan dust through the Caribbean Sea has contributed 79% to the daily average of PM10 (150.75 μg/m3) and on 57% to the daily average of PM2.5.
    Keywords COVID-19 ; PM10 ; PM2.5 ; AOD ; Biomass burning ; Lockdown ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Subject code 551
    Language English
    Publishing date 2021-12-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Human health risk assessment of PM

    Arregocés, Heli A / Bonivento, Guillermo J / Ladino, Luis A / Beristain-Montiel, Erick / Restrepo, Gloria / Miranda, Javier / Alvarez-Ospina, Harry / Rojano, Roberto

    Environmental science and pollution research international

    2023  Volume 30, Issue 60, Page(s) 125915–125930

    Abstract: Air pollution in opencast coal mine areas is a critical issue, resulting in harmful severe effects on human health. Therefore, it is essential to understand the air pollution factors and to assess the risks to humans. This study evaluated the potential ... ...

    Abstract Air pollution in opencast coal mine areas is a critical issue, resulting in harmful severe effects on human health. Therefore, it is essential to understand the air pollution factors and to assess the risks to humans. This study evaluated the potential risks (carcinogen and non-carcinogen) of inhalation exposure to PM
    MeSH term(s) Humans ; Particulate Matter/analysis ; Air Pollutants/analysis ; Environmental Monitoring/methods ; Polycyclic Aromatic Hydrocarbons/analysis ; Latin America ; Lead/analysis ; Risk Assessment ; Neoplasms ; Carcinogens/analysis ; Metals, Heavy/analysis ; Coal/analysis ; China
    Chemical Substances Particulate Matter ; Air Pollutants ; Polycyclic Aromatic Hydrocarbons ; chromium hexavalent ion (18540-29-9) ; Lead (2P299V784P) ; Carcinogens ; Metals, Heavy ; Coal
    Language English
    Publishing date 2023-11-27
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-023-30787-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

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  10. Article ; Online: Impact of lockdown on particulate matter concentrations in Colombia during the COVID-19 pandemic

    Arregocés, Heli A. / Rojano, Roberto / Restrepo, Gloria

    Science of The Total Environment

    2020  , Page(s) 142874

    Keywords Environmental Engineering ; Waste Management and Disposal ; Pollution ; Environmental Chemistry ; covid19
    Language English
    Publisher Elsevier BV
    Publishing country us
    Document type Article ; Online
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2020.142874
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 949: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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