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    Wyświetlanie 1-2 z 2
    Tytuł:
    Assessment of iron oxide and local cement clay as potential fluoride adsorbents
    Autorzy:
    Atasoy, A. D.
    Yesilnacar, M. I.
    Powiązania:
    https://bibliotekanauki.pl/articles/207691.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    drinking water purification
    membrane process
    fluorine
    fluor
    procesy membranowe
    oczyszczanie wody pitnej
    Opis:
    Health problem from fluoride contaminated water is more acute in rural and small urban communities. Defluoridation of low contaminated water by inexpensive adsorbents is a substantial practice worldwide. In the study, low-cost sorbents have been investigated as replacements for current costly methods of removing the excess fluoride from water below the certain concentration. The adsorption capacity of iron oxide and cement clay in fluoride removal was investigated by the batch method. The equilibrium time was attained in 3 h and 2 h for iron oxide and cement clay, respectively. Optimum adsorbent dosage was found to be 5 g/dm3. Initial fluoride concentrations for the adsorption studies were 1.24 and 12.2 mg/dm3. Fluoride adsorption isotherm fitted well the Freundlich isotherm with the coefficient of determination >0.99 for both adsorbents. The fluoride adsorption capacity of iron oxide was found higher than that of cement clay due to the high surface area and charge of iron oxide. How-ever both substances can reduce F– contamination below the acceptable limits of 1.5 mg/dm3 for less contaminated water.
    Źródło:
    Environment Protection Engineering; 2017, 43, 2; 109-118
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Respiratory symptoms and pulmonary functions before and after pesticide application in cotton farming
    Autorzy:
    Sak, Z.H.A.
    Kurtulus, S.
    Ocakli, B.
    Toreyin, Z.N.
    Bayhan, I.
    Yesilnacar, M.I.
    Akgun, M.
    Arbak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2081931.pdf
    Data publikacji:
    2018
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    pesticides
    PM10
    PM2.5
    pulmonary functions
    respiratory symptoms
    Opis:
    Ojective. To investigate respiratory health problems related to pesticide exposure in the inhabitants of agricultural areas. Materials and method. This study included 252 participants prior to pesticide application and 66 participants from the first group after pesticide application across four cotton farms. Symptom questionnaires were filled out by participants and respiratory function tests were measured before and after pesticide exposure. In addition, PM10, PM2.5, air temperature, and humidity were measured in all four farming villages before and after pesticide administration. Results. PM10 and PM2.5 levels were significantly increased after pesticide application. After pesticide application, all participants’ nose, throat, eye, and respiratory complaints increased significantly. Expected forced vital capacity (FVC) and forced expiratory volume in one second (FEV1) percentage values decreased significantly. The rates of FVC and FEV1 values lower than 80% were 23.5% and 22%, respectively, before pesticide application, and this rate increased to 42.4% and 43.1%, respectively, after pesticide application. There was a significant negative correlation between PM10 levels and FVC, FEV1, and PEF values. After PM2.5 pesticide application, the risk of experiencing burning in the mouth, nose, and throat increased by 2.3-fold (OR: 2.316), 2.6-fold for burning symptoms in the eyes (OR: 2.593), 2.1-fold for wheezing (OR: 2.153), and 2.2-fold for chest tightness (OR: 2.211). With increased PM10 levels, the risk of chest tightness increased 1.1-fold (OR: 1.123). Conclusions. After pesticide administration, the respiratory health of the participants deteriorated. Performing pesticide applications in agriculture with harmless methods is the most important measure to be taken to protect public health
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2018, 25, 4; 701-707
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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