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Size and Chemistry of Particulate Matter in Cairo’s Atmosphere.
В наличии
Местонахождение: Алматы | Состояние экземпляра: новый |
Бумажная
версия
версия
Автор: Waleed Hares
ISBN: 9783659463051
Год издания: 2014
Формат книги: 60×90/16 (145×215 мм)
Количество страниц: 200
Издательство: LAP LAMBERT Academic Publishing
Цена: 43670 тг
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Аннотация: This book describes the work carried out by the author to characterise suspended particulate matter (SPM) in Cairo's atmosphere. The TSP (total suspended particulate) and the size fractionated PM10 (inhalable particulate matter) were collected at an urban area in Cairo. The particulate matter collected at each size category was then chemically analysed for major water-soluble species (sulfates, nitrates, chlorides, and ammonium) and heavy metals (lead, nickel, chromium, manganese, and zinc). The annual mean PM10/TSP percentage was found to be 27.28% which indicates that particulates in Cairo's air are characterised by high coarse size fraction, possibly due to the surrounding deserts. The annual mean concentrations of PM10 and PM3 were found to be significantly higher than the standards given by WHO and USEPA. This indicates high levels of fine particulate matter in Cairo's air which are serious hazardous materials that pose long-term risk to the residents' health. The concentrations of Pb, Mn, and Cr in the fine fractions were lower than the safe limits set by WHO, while fine fractions' Ni and Zn displayed dangerously high concentrations.
Ключевые слова: Air pollution, Particulate Matter, size distribution, PM10, PM2.5, Atmosphere, Cairo, Egypt, suspended particulate matter (SPM), SPM