scholarly journals Air quality analysis through measurement of pb levels in blood using atomic absorption spectrophotometer

2021 ◽  
Vol 1 (2) ◽  
pp. 89-95
Author(s):  
Uitumen Erdenezul
Keyword(s):  
Air Quality ◽  
Atomic Absorption ◽  
Threshold Value ◽  
Daily Activities ◽  
Atomic Absorption Spectrophotometer ◽  
Quality Analysis ◽  
Observational Method ◽  
The Poor ◽  
Pb Exposure ◽  
High Level

Air pollution is a problem that needs attention, especially pollution by heavy metals such as lead (Pb). This research was conducted to measure the levels of Pb in the blood of people who do a lot of daily activities on the highway in the Ulaanbaatar region, Mongolia, so that an overview of the level of exposure to Pb in the air is obtained. The study was conducted using an observational method by measuring the blood directly from the participants using an atomic absorption spectrophotometer. The participants involved were 20 people who met the criteria. The results showed that the average level of Pb in the blood of people who had daily activities on the highway was 8.97 ppm. Where the smallest level is 5.12 ppm and the highest level is 12.06 ppm. This value is far above the threshold value determined by WHO, which is 0.05 ppm. Therefore, it can be concluded that the air quality in the Ulaanbaatar area is in the poor category with a high level of Pb exposure.

scholarly journals Analysis of chromium(IV) levels in residents' well water around the Citarum River, Indonesia

2021 ◽  
Vol 1 (1) ◽  
pp. 13-22
Author(s):  
Farhan Baehaki ◽  
Yasser Wahyudin ◽  
Ryzal Perdana ◽  
Arlisya Siti Nurfajar ◽  
Zidni Irpan Syaripudin
Keyword(s):  
Heavy Metals ◽  
Environmental Pollution ◽  
Atomic Absorption ◽  
Threshold Value ◽  
The Other ◽  
Daily Activities ◽  
Well Water ◽  
Ion Content ◽  
Industrial Activity ◽  
Surrounding Environment

Wells as a source of water that is commonly used by people in Indonesia are very dependent on the conditions of the surrounding environment. The presence of environmental pollution by waste will be very dangerous, especially if the waste contains heavy metals such as Cr(VI). The highly soluble nature of Cr(VI) allows the process of infiltration from the river into the well water. This study aims to analyze the content of Cr(VI) in the well water of residents around the Citarum River. Samples were taken from two areas that have the criteria for the level of pollution and the environment which is dense with industrial activity, with a total of ten wells spread over the area. The concentration measurement was carried out using an atomic absorption spectrophotometer at a wavelength of 357.9 nm. The results showed that the levels of Cr(VI) ion at Location 1 were in the range of 0.014 – 0.022 ppm so that it could still be used for daily activities because it was below the threshold value. At Location 2, there are six wells whose water is still suitable for use because the value of the Cr(VI) ion content is still below the threshold value. Meanwhile, the water in the other four wells contains Cr(VI) ion level that exceeds the threshold value, so it can be said that it is not suitable for daily use.

Assessing Zinc Amassing in Forages, Buffalo Blood and Topsoil Collected from Sargodha City, Pakistan

2020 ◽  
Vol 71 (8) ◽  
pp. 240-248
Author(s):  
Kafeel Ahmad ◽  
Yongjun Yang ◽  
Zafar Iqbal Khan ◽  
Nimra Arshad ◽  
Tasneem Ahmad ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Atomic Absorption ◽  
Blood Sample ◽  
Analysis Of Variance ◽  
Atomic Absorption Spectrophotometer ◽  
Metal Analysis ◽  
Heavy Metal Analysis

The article is focused on estimation of Zinc in the roadside forages, and blood of buffaloes feeding on these forages. This study was carried out in Sargodha during December 2015 to January 2016 (winter) and May 2016 to June 2016 (summer). Five road sites (Mateela, Faisalabad roadside, Shaheenabad roadside, Bhalwal roadside and 50 chak) were selected from sampling of forages, soil and buffalo blood sample. Heavy metal analysis of all digested samples was done with atomic absorption spectrophotometer. Analysis of variance and correlation was done with two way ANOVA. This study regarding the accumulation of zinc in forages, soil and the buffalo blood would help the authorities to exactly determine the agents which are responsible for increasing pollution in the environment.

Air quality analysis in critical zones of Mexico using unsupervised machine learning

2020 ◽  
Author(s):  
Eli G. Pale-Ramon ◽  
Luis J. Morales-Mendoza ◽  
Sonia L. Mestizo-Gutierrez ◽  
Mario Gonzalez-Leee ◽  
Rene F. Vazquez-Bautista ◽  
...  
Keyword(s):  
Machine Learning ◽  
Air Quality ◽  
Quality Analysis ◽  
Unsupervised Machine Learning ◽  
Critical Zones

scholarly journals Polarization properties of aerosol particles over western Japan: classification, seasonal variation, and implications for air quality

2016 ◽  
Author(s):  
X. L. Pan ◽  
I. Uno ◽  
Y. Hara ◽  
K. Osada ◽  
S. Yamamoto ◽  
...  
Keyword(s):  
Air Quality ◽  
Aerosol Particles ◽  
Threshold Value ◽  
Sea Salt ◽  
Spherical Particles ◽  
Aerosol Composition ◽  
Anthropogenic Pollutants ◽  
Online Measurements ◽  
Dependent Polarization ◽  
Western Japan

Abstract. Ground-based observations of the polarization properties of aerosol particles using a polarization optical particle counter (POPC) were performed from October 2013 to January 2015 at a suburban site in the Kyushu area of Japan. By conducting an analysis of online measurements of aerosol composition, we investigated size-dependent polarization characteristics for three typical aerosol types (anthrop ogenic pollutants, dust, and sea salt). We found that, for supermicron particles, its depolarization ratio (DR, the fraction of s-polarized signal in the total back ward light scattering signal) generally increased with the particle size, and a threshold value of 0.1 could be used to identify the irsphericity. In summer, air pollution was less serious, and the DR of aerosol particles was relatively small due to the influence of spherical sea salt particles in high humidity conditions. This study indicated that air masses were transported across the Asian continent and contained not only anthropogenic pollutants, but also large amounts of non-spherical particles (i.e., dust), which could impact on the air quality in western Japan, especially in winter and spring. The variation of number fraction of spherical particles did not correlate with relative humidity averaged along the trajectories of air parcels, indicating the coexistence of hydrophobic substances (e.g., mineral dust and organics), although the sulfate and nitrate mass concentrations were high.

scholarly journals Studi Penurunan Kadar Logam Besi (Fe) dan Logam Tembaga (Cu) pada Air Embung Menggunakan Adsorben Nanosilika

2017 ◽  
Vol 17 (2) ◽  
pp. 131
Author(s):  
Emas Agus Prastyo Wibowo ◽  
Ika Sri Hardyanti ◽  
Isni Nurani ◽  
Dyan Septyaningsih Hardjono HP ◽  
Aden Dhana Rizkita
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Water Use ◽  
Metal Content ◽  
Atomic Absorption Spectrophotometer ◽  
Absorption Method ◽  
Wastewater Purification ◽  
Stirring Time ◽  
Independent Variable

STUDI PENURUNAN KADAR LOGAM BESI (Fe) DAN LOGAM TEMBAGA (Cu) PADA AIR EMBUNG MENGGUNAKAN ADSORBEN NANOSILIKAABSTRAKPolusi limbah logam berat dalam air merupakan satu permasalahan lingkungan yang penting. Dalam mengatasi permasalahan tersebut dapat dilakukan purifikasi terhadap air tersebut. Metode yang dapat digunakan untuk purifikasi limbah sangat beragam salah satunya adalah absorpsi. Secara umum metode absorpsi telah banyak digunakan dalam purifikasi air limbah. Metode absorpsi dapat menurunkan kadar logam yang terlarut pada limbah. cair dengan cara menyerap logam-logam tersebut ke dalam permukaan absorbennya. Tujuan dilakukan penelitian ini adalah  untuk menurunkan konsentrasi logam besi (Fe) dan tembaga (Cu) menggunakan adsorben nanosilika. Penelitian ini menggunakan variabel bebas yaitu waktu pengadukan (20 menit, 40 menit, dan 60 menit). Hasil akhir filtrat air embung kemudian diukur absorbansinya menggunakan Spektrofotometer Serapan Atom. Berdasarkan hasil analisa menggunakan instrumen SSA diperoleh hasil bahwa tidak terjadi penurunan logam Fe maupun Cu. Dalam hal ini terjadi peningkatan konsentrasi dalam logam Fe maupun Cu, hal ini dikarenakan kurangnya waktu pengadukan dan pengaruh dari adsorben nanosilika.Kata Kunci: limbah, logam berat, nanosilika STUDY OF DECREASING METALS IRON (Fe) AND COPPER (Cu) ON EMBUNG WATER USE OF NANOSILICA ADSORBEN ABSTRACTHeavy waste pollution of heavy metals in the water is an important environment issue. To solve the problem, its can be purified the water. The methods that can be used for waste purification are very diverse, one of which is absorption. In general, the method of absorption has been widely used in wastewater purification. The absorption method can decrease dissolved metal content in the waste. liquid by absorbing the metals into the absorbent surface. Research has been conducted to reduce the concentration of iron (Fe) and copper (Cu) by using nanosilica adsorbent. This research used to independent variable that is stirring time (20 minutes, 40 minutes, and 60 minutes). The final result of filtrate embung water then measured its absorbance using Atomic Absorption Spectrophotometer (AAS). Based on the result of the analysis using SSA instrument, it is found that there is no decrease of Fe and Cu metals. There are several reasons for those problem such as due to lack of stirring time and the influence of nanosilica adsorbent.Keywords: Waste pollution, heavy metal, nanosilica

scholarly journals Status Mineral Zn Pada Sapi Potong Di Daerah Aliran Sungai Jratunseluna

2018 ◽  
Vol 15 (28) ◽  
pp. 44
Author(s):  
Gilang Yoga Arfian, ◽  
Joelal Achmadi, ◽  
Anis Muktiani
Keyword(s):  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometer

Penelitian bertujuan untuk mengkaji status mineral sapi potong yang dipelihara pada daerah aliran sungai (DAS) Jragung-Tuntang-Serang-Lusi-Juwana (Jratunseluna). Kajian menggunakan metode survei yang melibatkan 30 ekor sapi potong yang dipelihara di dataran rendah dan tinggi DAS Jratunseluna. Pemilihan sapi dilakukan sesuai teknik sampling acak secara purposif. Observasi status Zn didasarkan atas konsentrasi Zn pada tanah, air minum, pakan, dan bulu ternak. Penetapan kadar Zn pada sampel menggunakan atomic absorption spectrophotometer. Parameter data antara daerah dataran rendah dan tinggi dibandingkan menggunakan uji t. Konsentrasi Zn pada tanah dataran rendah dan tinggi masing-masing adalah 17,03 dan 78,25 ppm. Konsentrasi Zn pada pakan dari daerah dataran rendah dan tinggi sangat beragam. Konsentrasi Zn pada bulu ternak di dataran rendah dan tinggi masing-masing adalah 86,01 dan 81,19 ppm. Kadar Zn pada air minum tidak terdeteksi secara jelas baik di dataran endah maupun dataran tinggi. Konsentrasi Zn pada tanah dan pakan di daerah dataran rendah dan tinggi dapat dikategorikan sebagai kadar sedang sampai tinggi. Namun, data kadar Zn pada bulu ternak menunjukkan bahwa sapi potong yang dipelihara baik di dataran rendah dan tinggi ternasuk defisien ringan.

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