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  1. AU="Mawutorli Nyarku"
  2. AU="Dene R. Littler"
  3. AU="Zamai, Loris"
  4. AU=Kato Takashi
  5. AU=Haase Michael
  6. AU="Ingrams, Duncan"
  7. AU=Liu Rong
  8. AU="Musselman, Kristin E"
  9. AU=Abrams M J
  10. AU="Paul, Archi Sundar"
  11. AU=Yoon Hyuk
  12. AU="Gonzalez, Emily"
  13. AU="Dunnill, M S"
  14. AU=Kuo Chih-Hung
  15. AU=Geronimo Carly L.
  16. AU=Stafforini D M
  17. AU="Sytse J. Piersma"
  18. AU="Peng, Hongke"
  19. AU="Kelly, Geoffrey"
  20. AU=Schwartzenburg Joshua AU=Schwartzenburg Joshua
  21. AU="Deshpande, Sneha Satish"
  22. AU="Ganhewa, Aparna D" AU="Ganhewa, Aparna D"
  23. AU="Flanagan, T L"
  24. AU=Davila Eduardo
  25. AU="Miroli, Augusto"
  26. AU="Stahl, B"
  27. AU="Dehari, Hironari"
  28. AU="Pinheiro, Silviane Bezerra"
  29. AU="Jamal Al Deen Alkoteesh"
  30. AU="Chen, Dingqiang"
  31. AU="Jeremy C. Ganz"
  32. AU="Lee, Ta-Sheng"
  33. AU="Shi, Jin-Ming"
  34. AU=Kristoffersen K B
  35. AU=Du Chao
  36. AU="Anton I. Skaro"

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  1. Artikel ; Online: Schoolchildren’s personal exposure to ultrafine particles in and near Accra, Ghana

    Mawutorli Nyarku / Giorgio Buonanno / Francis Ofosu / Rohan Jayaratne / Mandana Mazaheri / Lidia Morawska

    Environment International, Vol 133, Iss , Pp - (2019)

    2019  

    Abstract: Exposure to air pollution is a significant health risk, and children who are exposed to it are likely to have lifelong consequences. Ultrafine particles (UFPs) are emitted by all combustion sources, and can be used as a proxy for the presence of ... ...

    Abstract Exposure to air pollution is a significant health risk, and children who are exposed to it are likely to have lifelong consequences. Ultrafine particles (UFPs) are emitted by all combustion sources, and can be used as a proxy for the presence of combustion products. The present study, the first of its kind to be conducted in Africa, assessed schoolchildren’s exposure to UFPs, and apportioned their daily exposure to seven different microenvironments that they inhabited on a typical school day. The personal exposure of 61 pupils attending three junior high schools was measured for 24 h each using wearable monitors over a period of 10 weeks. Two of the schools were located in suburbs of Accra and the third in Berekuso, a nearby rural community. The results of our study revealed the complex nature of children’s UFP exposure and its overall high to very high levels, significantly influenced by the locality (suburb) of residence and the type of activities in which the children were engaged. The mean (±standard error) daily exposure to UFPs (cm-3) was6.9×104(±6.8×103),4.9(±1.0)×104 and 1.6×104±1.9×103for pupils attending the Ashia Mills, Faith Baptist and Berekuso Basic Schools, respectively. Pupils attending the schools in urban Accra received higher exposure than those attending the school in the rural environment of Berekuso. The highest mean microenvironmental exposure was registered in the Home other microenvironment in an urban school and in Bedroom in another urban school and the rural school. The high exposure in Home other was due to pupils conducting trash burning and encountering environmental tobacco smoke, and the high exposure in Bedroom microenvironment was due to the burning of mosquito coils at night to prevent malaria. The principal sources that heightened exposure to UFPs were emissions from cooking (using firewood and charcoal), vehicular traffic and combustion of biomass and trash. All pupils recorded the highest exposure intensity in the Kitchen microenvironment. Keywords: Schoolchildren, ...
    Schlagwörter Environmental sciences ; GE1-350
    Thema/Rubrik (Code) 333
    Sprache Englisch
    Erscheinungsdatum 2019-12-01T00:00:00Z
    Verlag Elsevier
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Mobile phones as monitors of personal exposure to air pollution

    Mawutorli Nyarku / Mandana Mazaheri / Rohan Jayaratne / Matthew Dunbabin / Md Mahmudur Rahman / Erik Uhde / Lidia Morawska

    PLoS ONE, Vol 13, Iss 2, p e

    Is this the future?

    2018  Band 0193150

    Abstract: Mobile phones have a large spectrum of applications, aiding in risk prevention and improving health and wellbeing of their owners. So far, however, they have not been used for direct assessment of personal exposure to air pollution. In this study, we ... ...

    Abstract Mobile phones have a large spectrum of applications, aiding in risk prevention and improving health and wellbeing of their owners. So far, however, they have not been used for direct assessment of personal exposure to air pollution. In this study, we comprehensively evaluated the first, and the only available, mobile phone-BROAD Life-equipped with air pollution sensors (PM2.5 and VOC), to answer the question whether this technology is a viable option in the quest of reducing the burden of disease to air pollution. We tested its performance, applicability and suitability for the purpose by subjecting it to varied concentrations of different types of aerosol particles (cigarette smoke, petrol exhaust and concrete dust) and formaldehyde under controlled laboratory conditions, as well as to ambient particles during field measurements. Six reference instruments were used in the study: AEROTRAK Optical Particle Counter (OPC model number 9306), DustTrak, Aerodynamic Particle Counter (APS), Scanning Mobility Particle Sizer (SMPS), Tapered Element Oscillating Microbalance (TEOM) and Formaldehyde Analyser. Overall, we found that the phone's response was linear at higher particle number concentrations in the chamber, above 5 and 10 μg m-3, for combustion and concrete dust particles, respectively, and for higher formaldehyde concentrations, making it potentially suitable for applications in polluted environments. At lower ambient concentrations of particles around 10 ug m-3 and 20 μg m-3 for PM2.5 and PM10, respectively, the phone's response was below its noise level, suggesting that it is not suitable for ambient monitoring under relatively clean urban conditions. This mobile phone has a number of limitations that may hinder its use in personal exposure and for continuous monitoring. Despite these limitations, it may be used for comparative assessments, for example when comparing outcomes of intervention measures or local impacts of air pollution sources. It should be kept in mind, however, that a mobile phone measuring ...
    Schlagwörter Medicine ; R ; Science ; Q
    Thema/Rubrik (Code) 333
    Sprache Englisch
    Erscheinungsdatum 2018-01-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

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