Quantification of Atmospheric Pollution In The Urban Environment Of Sidi Bel' Abbes (Western Algeria)

La pollution atmosphérique constitue aujourd’hui un problème environnemental très complexe à l’échelle locale et planétaire. La quantification de cette pollution est possible par des espèces végétales arborescentes. L’utilisation des espèces végétales arborescentes a permis de quantifier la contamination aérienne en métaux lourds due au trafic routier. Les analyses des feuilles du platane d’orient (Platanus orientalis) et du caroubier (Ceratonia siliqua) ont rendu possible la cartographie des sites pollués par les trois métaux lourds (Pb, Zn, Cu) de la ville de Sidi Bel’ Abbes (Ouest Algérien). Les concentrations élevées en plomb et en zinc enregistrées dans seize sites de prélèvement sont en étroite relation avec un trafic routier très dense et un parc automobile vieillissant. Le plomb, le zinc et le cuivre, principaux polluants métalliques, sont issus des gaz d'échappement, de l'usure des garnitures de freins, des pneumatiques et de la corrosion des glissières de sécurité.The air pollution is now a very complex environmental problem locally and globally. Quantification of this pollution is possible by plant species tree.The use of plant species tree is used to quantify airborne contamination of heavy metals due to traffic. Analyses of the leaves of oriental plane tree (Platanus orientalis) and carob (Ceratonia siliqua) have made possible the mapping of sites polluted by the three heavy metals (Pb, Zn, Cu) from the city of Sidi Bel Abbe (West Algeria). High concentrations of lead and zinc recorded in sixteen sampling sites are in close relationship with a very dense traffic and fleet age. Lead, zinc and copper, the main metal pollutants are coming from the exhaust gas, the wear of brake linings, tires and corrosion of crash barriers

Quantification de la pollution atmospherique dans le milieu urbain de Sidi Bel’Abbes (Algerie Occidentale)

The air pollution is now a very complex environmental problem locally and globally. Quantification of this pollution is possible by plant species tree.The use of plant species tree is used to quantify airborne contamination of heavy metals due to traffic. Analyses of the leaves of oriental plane tree (Platanus orientalis) and carob (Ceratonia siliqua) have made possible the mapping of sites polluted by the three heavy metals (Pb, Zn, Cu) from the city of Sidi Bel Abbe (West Algeria). High concentrations of lead and zinc recorded in sixteen sampling sites are in close relationship with a very dense traffic and fleet age. Lead, zinc and copper, the main metal pollutants are coming from the exhaust gas, the wear of brake linings, tires and corrosion of crash barriers.La pollution atmosphérique constitue aujourd’hui un problème environnemental très complexe à l’échelle locale et planétaire. La quantification de cette pollution est possible par des espèces végétales arborescentes. L’utilisation des espèces végétales arborescentes a permis de quantifier la contamination aérienne en métaux lourds due au trafic routier. Les analyses des feuilles du platane d’orient (Platanus orientalis) et du caroubier (Ceratonia siliqua) ont rendu possible la cartographie des sites pollués par les trois métaux lourds (Pb, Zn, Cu) de la ville de Sidi Bel’ Abbes (Ouest Algérien). Les concentrations élevées en plomb et en zinc enregistrées dans seize sites de prélèvement sont en étroite relation avec un trafic routier très dense et un parc automobile vieillissant. Le plomb, le zinc et le cuivre, principaux polluants métalliques, sont issus des gaz d'échappement, de l'usure des garnitures de freins, des pneumatiques et de la corrosion des glissières de sécurité

Blood pressure, dyslipidemia and inflammatory factors are related to body mass index in scholar adolescents

Introduction: Obesity is associated with increased occurrence of numerous diseases, including hypertension, dyslipidemia, insulin resistance, diabetes, and atherosclerosis. Blood pressure (BP), dyslipidemia, and inflammation markers and their relationships with body mass index (BMI) were determined in scholar adolescents. Material and methods : Adolescents (n = 210) (sex ratio G/B = 106/104; 11 to 16 years) were recruited in three colleges of Oran city. Anthropometric parameters were measured to classify adolescents as thin (T), normal weight (NW), overweight (OW), or obese (O). Waist circumference (WC) and BP were measured, and serum glucose, uric acid, urea, lipid parameters, tumor necrosis factor- (TNF-), interleukin-1 (IL-1), interleukin-6 (IL-6), C-reactive protein (CRP), insulin, leptin, and adiponectin were analyzed. Results : Adolescents were classified according to their BMI as T (15%), NW (63%), OW (13%), and O (9%). Compared to NW, increased values of WC, BP (p < 0.001), and glucose (p < 0.01) were noted in OW and O groups. Total cholesterol (TC) level was elevated in O adolescents (p < 0.01). Increased low-density lipoprotein cholesterol (LDL-C) in OW (p < 0.05) and O (p < 0.01), and reduced high-density lipoprotein cholesterol (HDL-C) concentrations were noted in both OW and O groups (p < 0.05), compared to NW. Elevated triglyceride (TG) values and TG : HDL-C ratio were observed in OW (p < 0.05) and O (p < 0.01). High values of uric acid were noted in OW and O adolescents (p < 0.01). Compared to NW, there was no significant difference in IL-1 whereas IL-6 was elevated in T (p < 0.05), OW (p < 0.01) and O (p < 0.001). Leptin, TNF-, and CRP concentrations were significantly increased (p < 0.001), whereas adiponectin values were decreased in both OW and O groups (p < 0.01), compared to NW. Conclusions : Significant associations were noted between WC, BP, dyslipidemia, inflammation markers, and BMI, indicating that both OW and O adolescents have a tendency to present metabolic syndrome risk factors

Abstracts of 1st International Conference on Computational & Applied Physics

This book contains the abstracts of the papers presented at the International Conference on Computational &amp; Applied Physics (ICCAP’2021) Organized by the Surfaces, Interfaces and Thin Films Laboratory (LASICOM), Department of Physics, Faculty of Science, University Saad Dahleb Blida 1, Algeria, held on 26–28 September 2021. The Conference had a variety of Plenary Lectures, Oral sessions, and E-Poster Presentations. Conference Title: 1st International Conference on Computational &amp; Applied PhysicsConference Acronym: ICCAP’2021Conference Date: 26–28 September 2021Conference Location: Online (Virtual Conference)Conference Organizer: Surfaces, Interfaces, and Thin Films Laboratory (LASICOM), Department of Physics, Faculty of Science, University Saad Dahleb Blida 1, Algeria