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Matti Narkia

Long-term ozone exposure may increase risk of death from respiratory causes - 0 views

www.medwire-news.md/...h_from_respiratory_causes.html

2009 March medwire news long-term ozone exposure ozone_exposure death respiratory causes lungs particulate matter particulate_matter particles air pollution air_pollution inhalation CVD risk mortality cardiopulmonary health

shared by Matti Narkia on 13 Mar 09 - Cached
  • Matti Narkia on 13 Mar 09
     
    MedWire News: Long-term exposure to ozone is associated with an increased risk of death from respiratory causes, researchers have found.\n\nA two-pollutant model in the study, published in the New England Journal of Medicine, showed that levels of fine particulate matter less than 2.5 µm in diameter (PM2.5) were associated with death from cardiovascular causes, whereas increased ozone concentrations were associated with an increased risk of death from cardiopulmonary causes.
Matti Narkia

NEJM -- Long-Term Ozone Exposure and Mortality - 0 views

content.nejm.org/...1085

2009 March NEJM study research air pollution air pollution air_pollution long-term ozone exposure long-term_ozone_exposure ozone_exposure health medline mortality respiratory causes death lungs cardiopulmonary risk

shared by Matti Narkia on 13 Mar 09 - Cached
  • Matti Narkia on 13 Mar 09
     
    Long-term ozone exposure and mortality. Jerrett M, Burnett RT, Pope CA 3rd, Ito K, Thurston G, Krewski D, Shi Y, Calle E, Thun M. N Engl J Med. 2009 Mar 12;360(11):1085-95. PMID: 19279340 [
Matti Narkia

VitD Duration of Vitamin D Synthesis in Human Skin - 0 views

zardoz.nilu.no/...VitD.html

vitamin D vitamin_D production synthesis skin cutaneous hours calculator tool season latitude date altitude weather clouds time location UVB UV radiation duration

shared by Matti Narkia on 25 Feb 09 - Cached
  • Matti Narkia on 25 Feb 09
     
    Vitamin D production in human skin occurs only when UV radiation exceeds a threshold. From simulations of UV irradiances, the VitD www page ( http://zardoz.nilu.no/~olaeng/fastrt/VitD.html) computes the daily duration of dermal vitamin D production at midday when UV radiation exceeds the required threshold. The daily duration depends on latitude, time, total ozone, clouds, aerosols, surface reflectivity and altitude all of which can be specified by the user
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