scholarly journals Correlation between vehicular traffic and heavy metal concentrations in road sediments of Bogotá, Colombia

2019 ◽  
Vol 67 (2) ◽  
pp. 193-199 ◽  
Author(s):  
Carlos Zafra-Mejía ◽  
Álvaro Gutiérrez-Malaxechebarria ◽  
Yolanda Hernández-Peña
Keyword(s):  
Public Health ◽  
Heavy Metal ◽  
Heavy Traffic ◽  
Size Fraction ◽  
Deep Understanding ◽  
Vehicular Traffic ◽  
Traffic Intensity ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations ◽  
Flame Atomic Absorption

Introduction: Diseases such as asthma and lung cancer are associated with heavy traffic in urban areas. A deep understanding of the pollutants generated by road traffic is relevant to public health control.Objective: To analyze the correlation between vehicular traffic intensity and heavy metal concentrations in road sediments in the city of Bogota, Colombia.Materials and methods: A descriptive observational study was performed. The degree of road pollution was assessed based on reference legislation for the protection of human health (inhalation, ingestion, and dermal contact). Heavy metal concentrations (lead, zinc and copper) were determined by flame atomic absorption spectrometry. Regression models between traffic intensity and metal concentrations were developed.Results: The size fraction <250 µm of the road sediment was representative to analyze the correlation between traffic intensity and heavy metal concentrations. Lead was the heavy metal of greatest concern from the view point of public health in Bogotá.Conclusions: The following public health limits for control decision-making regarding lead are proposed: lower limit = 4 850 vehicles/day; upper limit = 11 300 vehicles/day.

scholarly journals Hubungan Logam Berat Pb terhadap Fraksi Sedimen dan Bahan Organik di Muara Sungai Tiram, Marunda, Jakarta Utara

2019 ◽  
Vol 8 (2) ◽  
pp. 61
Author(s):  
Indah Syahiddah Fitroh ◽  
Petrus Subardjo ◽  
Lilik Maslukah
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Grain Size ◽  
Organic Matter ◽  
Atomic Absorption ◽  
Size Fraction ◽  
Heavy Metal Concentration ◽  
Atomic Absorption Spectrophotometer ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations

Kegiatan industri di Perairan Muara Sungai Tiram, Marunda, Jakarta Utara, akan berdampak terhadap konsentrasi logam berat di Perairan. Sedimen merupakan tempat akumulasinya logam tersebut dan pada suatu saat akan dapat menjadi sumber bagi kolom perairan diatasnya. Tujuan penelitian ini adalah untuk mengetahui konsentrasi logam berat pada sedimen dasar dan mengetahui korelasinya terhadap ukuran butir serta dan bahan organik. Analisa logam berat diawali dengan proses destruksi menggunakan aquaregia dan supernatannya di baca nilai absorbasninya menggunakan Atomic Absorption Spectrophotometer (AAS). Untuk melihat hubungan parameter logam berat terhadap ukuran butir dan bahan organik, menngunakan analisis korelasi Pearson. Berdasarkan penelitian tersebut diperoleh nilai konsentrasi logam berat dengan kisaran 20,19–55,68 ppm. Konsentrasi logam berat memiliki korelasi positif terhadap fraksi silt dan clay.  Distribusi logam berat di lokasi penelitian berasosiasi kuat terhadap fraksi ukuran butir halus dan bahan organik, melalui proses adsorpsi. The waters of the Muara Sungai Tiram, Marunda, North Jakarta, are areas that are surrounded by very dense industrial activities. The existence of these activities has an impact on the concentration of heavy metals in basic sediments in these waters. The purpose of this study was to determine the concentration of heavy metals in basic sediments and determine the correlation between the concentration of heavy metals with grain size on the base sediment in the liquid and the correlation between the concentration of heavy metals with organic matter. Analysis of heavy metal concentrations was carried out using the acid destruction method, then the concentration was read using the Atomic Absorption Spectrophotometer (AAS), and processed into a heavy metal concentration map using Arcgis 10.3. Based on these studies the value of heavy metal concentrations obtained in the range of 20.19 - 55.681 ppm. Heavy metal concentrations have a positive correlation with the mud and organic matter fractions with r values of 0.68 and 0.10, respectively. The distribution of heavy metals in this study is strongly associated with the fine grain size fraction and organic matter, through the adsorption process

scholarly journals Assessment of Some Heavy Metals in Two Species of Goby (Porogobius Schelegelii and Bathygobius Soporator) From Buguma Creek, Niger Delta

2021 ◽  
pp. 46-51
Author(s):  
Wilfred–Ekprikpo P. C.
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
World Health ◽  
High Concentration ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations ◽  
Flame Atomic Absorption ◽  
Flame Atomic Absorption Spectrophotometer ◽  
Fish Samples ◽  
Health Organization

This study investigated the heavy metal concentrations in different organs such as gills, muscles, liver and gatro-intestinal tract (GIT) of two species of Goby: Porogobius schelegelii and Bathygobius soporator from Buguma Creek, Rivers State, Nigeria. The fish samples were collected from the creek and were preserved in ice chest box and transported to the laboratory for analysis. Samples were digested by using standard laboratory methods. The concentrations of metals were analyzed using a Varian AA240 Fast Sequential Flame Atomic Absorption Spectrophotometer (AAS). The Results obtained indicated that heavy metals such as Chromium (Cr), Lead (Pb), Zinc (Zn), Cadmium (Cd), and Nickel (Ni) were significantly higher (p<0.05) in the liver of the two species than in the muscle, gills and the GIT. Comparatively, the concentrations of these metals were higher in the specie B.soporator than P. schelegelii in all the organs of the fishes under consideration. The heavy metal concentrations recorded in this study were above the limits recommended by Food and Agricultural Organization/ World Health Organization. The high concentration of heavy metals above permissible level suggests the need for caution during the consumption of these species from Buguma Creek due to health implications associated with heavy metals.

Heavy metal concentrations in roadside soils of Lithuania's highways

Geologija ◽  
2008 ◽  
Vol 50 (4) ◽  
pp. 237-245 ◽  
Author(s):  
Audronė Jankaitė ◽  
Pranas Baltrėnas ◽  
Agnė Kazlauskienė
Keyword(s):  
Heavy Metal ◽  
Roadside Soils ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations
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