scholarly journals Heavy metals level in the surficial sediment from Perai River of Penang, Malaysia

2021 ◽  
Vol 944 (1) ◽  
pp. 012052
Author(s):  
YZ Foo ◽  
F F M Ecklyn ◽  
Y F Tan ◽  
X Y Khoo ◽  
H Y Lee ◽  
...  

Abstract Perai river is one of the important rivers to Penang and Kedah states. Many industries are located along the river that flows to the Strait of Malacca. In order to gather the status of pollution along the river, a total of 47 stations were established to measure the heavy metals content and the sediment characteristics. Findings show that finer sediments had dominated all sampling sites as samples are mostly muddy sediment. The heavy metal concentration in the surficial sediment was analyzed using the Inductively Coupled Plasma Mass Spectrometer after the Teflon Bomb digestion method. The average concentration for Zn, Cr, Cu, Cd, Pb were 74.7±33.3, 66.0±28.1, 21.8±9.05, 0.42±0.32, and 28.6±6.84 μg/g dry weights, respectively. Generally, the concentration of metals studied seemed to be controlled by natural processes. This is proved by the enrichment factor, categorized as a deficiency to minimal enrichment, and can be concluded to be the main source from the lithogenous in origin. The sources of the heavy metals in some of the stations in the Perai river are speculated from the nearby urban runoff, industry activities along with the river, fishing and shipping activities, and land transportation emission may also accumulate for the pollution in the river.

2021 ◽  
Vol 10 (3) ◽  
pp. 437-445
Author(s):  
Erian Febri Satriawan ◽  
Ita Widowati ◽  
Jusup Suprijanto

Perairan Tambak Lorok Semarang merupakan daerah yang terdapat banyak aktivitas industri. Banyaknya aktivitas industri di perairan Tambak Lorok Semarang dapat menyebabkan tingginya angka pencemaran lingkungan, terutama logam berat. Penelitian ini bertujuan untuk mengetahui kandungan logam berat Cd (kadmium) pada kerang darah (Anadara granosa) yang terdapat di perairan Tambak Lorok Semarang dan kemudian dilakukan analisis terhadap penilaian resiko kesehatan manusia. Penelitian ini dilaksanakan pada bulan Maret, Juni, Juli dan Agustus tahun 2020 di perairan Tambak Lorok Semarang. Logam berat dari kerang tersebut berdasarkan pembacaan Inductively Coupled Plasma (ICP) menunjukkan nilai berturut – turut 0,280 mg/kg; 0,514 mg/kg; 0,430 mg/kg; dan 1,649 mg/kg. Berdasarkan konsentrasi rata-rata Cd lebih rendah dari BSN (2009) yaitu 1 mg/kg kecuali pada bulan Agustus 2020. Perkiraan asupan harian (EDI) oleh masyarakat berkisar antara (0,000168-0,000987) mg/kg/hari. Lalu, nilai bahaya target (THQ) untuk Cd berkisar (0,161-0,946). Nilai ECR yang didapatkan untuk Cd berkisar antara (2,6x10-5 - 1,5x10-4) Pada umumnya semua nilai THQ pada kerang A. granosa kurang dari 1. Sementara semua nilai ECR pada kerang A. granosa kurang dari 10-4 pada bulan Agustus 2020. Berdasarkan penelitian ini dapat disimpulkan bahwa kerang A. granosa yang terdapat di perairan Tambak Lorok Semarang masih bisa untuk dikonsumsi. Dan tidak ada efek buruk kesehatan non-karsinogenik. Namun pada bulan Agustus 2020 memiliki efek karsinogenik. apabila masyarakat mengkonsumsi daging kerang A. granosa yang terpapar logam berat kadmium (Cd). Tambak Lorok Waters in Semarang is an area that has many industrial activities. A large number of industrial activities in Tambak Lorok Semarang waters can cause a high number of environmental pollution, especially heavy metals. This study aims to determine the content of heavy metal Cd (cadmium) in blood clams (Anadara granosa) found in Tambak Lorok waters Semarang. Based on the metal content, an analysis of human health risk assessments was carried out. This research was conducted in March, June, July, and August 2020 in Tambak Lorok waters, Semarang. The heavy metals from these shells based on Inductively Coupled Plasma (ICP) readings showed a value of 0.280 mg/kg respectively; 0.514 mg/kg; 0.430 mg / kg; and 1.649 mg/kg. Based on the average concentration of Cd is lower than BSN (2009) that is 1 mg/kg except in August 2020. Estimated daily intake (EDI) by the community ranges from (0.000168-0.000987) mg/kg/day. Then, the target hazard value (THQ) for Cd ranges (0.161-0.946). The value of ECR for Cd range between (2,6x10-5 - 1,5x10-4). In general, all THQ values in A. granosa shells are less than 1. And then for all ECR value in A. granosa was less than 10-4. Based on this research, it can be concluded that A. granosa shells found in Tambak Lorok Semarang waters are still able for consumption. And there are no adverse non-carcinogenic health effects. But in August 2020 it has a carcinogenic effect. if people consumed A. granosa exposed by heavy metal cadmium (Cd).


2021 ◽  
Vol 944 (1) ◽  
pp. 012060
Author(s):  
A A Lubis ◽  
A D P Putra ◽  
U Sugiharto ◽  
Lalang ◽  
N P Zamani

Abstract Scleractinian corals absorb heavy metals in their skeletons; therefore, corals can be used as environmental recorders due to incorporating certain metals for centuries. The research was conducted in Wakatobi Marine National Park (WMNP) using a core of massive coral Porites Sp. to determine heavy metals’ concentrations and assess the possible impact on the coastal water. The sample was collected by drilling the coral vertically using a pneumatic tool. Annual banding was determined by using x-ray radiography, continued with sub-sampled from each band, and analyzed using an Inductively Coupled Plasma-Optical Emission Spectrometer (ICP-OES) for heavy metals determination. Enrichment Factor (EF) and Principal Component Analysis (PCA) were applied for assessing possible impact and differentiating between the heavy metals, respectively. The concentrations of heavy metals fluctuated during the period of the year 1917 to 2016, with the average concentration were 0.55 %, 0.07 %, 2.46 ppm, 3.86 ppm, 5.70 ppm, 63.22 ppm, 0.66 ppm, 3.16 ppm, 0.66 ppm, and 42.59 ppm for Sr, Mg, Mn, Ba, Cu, K, Pb, Zn, Cr, and Al, respectively. EF for all heavy metals showed that the coastal area was at the level of very small pollution (EF<2); therefore, it can be used as baseline data.


2013 ◽  
Vol 295-298 ◽  
pp. 794-797
Author(s):  
Yong Zhang ◽  
Gang Fang

In this study,sixteen sediment samples on Tuohe River were chemically analyzed in order to determine the concentration,origin and pollution intensity of heavy metals (Mn, Fe, Cr, Cu, Zn, Pb and Cd). The concentration of these elements was determined by using inductively coupled plasma atomic emission spectrometry (ICP-AES). Then a cluster analysis has conducted using Minitab software. The obtained results showed that the concentration of heavy elements are transitive as compared with the average concentration of these elements in ground surface and global sediments and they controlled by geological units. Lime units play the most important role to control the concentration of elements. Based on Muller geochemical index, the sediments in Tuohe River are not polluted.


2017 ◽  
Vol 36 (04) ◽  
Author(s):  
R. Annie Supriya ◽  
C. H. Swetha ◽  
A. Jagadeesh Babu ◽  
Vijay Bhaskar Reddy ◽  
Sravanthi . ◽  
...  

Due to food safety issues and human health risk, heavy metal concentration through food chain is a concerned problem worldwide. There are several reports on transfer of non-biodegradable heavy metals from soil to animals by direct contamination or through feed. Hence, the present study was undertaken to estimate the presence of heavy metals chromium and copper in chicken liver samples (n=54) which were collected in and around Tirupati region of Andhra Pradesh, India. These samples were analyzed for the presence of chromium and copper by using Inductively Coupled Plasma–Optical Emission Spectrometer (ICP-OES). The excess levels of chromium considered to be carcinogenic and copper leads to tissue injury. The results of this study revealed that the range of chromium is between 0.009 to 0.091ppm and for Copper is 0.006 to 2.54 ppm in chicken liver samples which is not significant and within prescribed tolerance limit.


Author(s):  
Elisabet Navarro-Tapia ◽  
Mariona Serra-Delgado ◽  
Lucía Fernández-López ◽  
Montserrat Meseguer-Gilabert ◽  
María Falcón ◽  
...  

Kohl is a traditional cosmetic widely used in Asia and Africa. In recent years, demand for kohl-based eyelids and lipsticks has increased in Europe, linked to migratory phenomena of populations from these continents. Although the European legislation prohibits the use of heavy metals in cosmetics due to the harmful effects to human health, particularly to pregnant women and children, these elements are still present in certain products. The European Union recommended levels are Pb < 20 ppm, As < 5 ppm, Cd < 5 ppm, Sb < 100 ppm, and Ni < 200 ppm. In Germany, levels are more restrictive: Pb < 2 ppm, As < 0.5 ppm, Cd < 0.1 ppm, Sb < 0.5 ppm, and Ni < 10 ppm. Here, we analyzed 12 kohl-based cosmetics in different presentations (powder, paste, and pencil) that were purchased in Spanish and German local shops. An inductively coupled plasma optical emission spectrophotometer was used to identify toxic elements and heavy metals. Levels of Pb ranged between 1.7 and 410,000 ppm in six of the study samples, four of which had levels above the recommended limit of at least two heavy metals. Arsenic (a carcinogenic element) values were within the range allowed by the EU in only 58% of the studied samples. Moreover, two products doubled this limit, reaching levels of 9.2 and 12.6 ppm. In one of the products, cadmium, related to toxic keratitis, was four times higher (20.7 ppm) than that allowed, while in two other products, these limits were doubled (11.8 and 12.7 ppm). Our results indicate the need to supervise the manufacture of kohl-based traditional products and the analysis of their composition prior distribution in European countries.


2021 ◽  
pp. 096032712199321
Author(s):  
M Charehsaz ◽  
S Helvacıoğlu ◽  
S Çetinkaya ◽  
R Demir ◽  
O Erdem ◽  
...  

In this study, the level of arsenic (As), lead (Pb) and cadmium (Cd) and also essential elements in beer samples consumed in Turkey were investigated using the inductively coupled plasma mass spectrometry (ICP-MS) method. The heavy metal-induced non-carcinogenic and carcinogenic risks were calculated. For essential elements, the calculated estimated daily intake of iron (Fe), copper (Cu), selenium (Se) and cobalt (Co) from beer consumption were compared with their toxicity reference values. Tukey post-hoc test showed that As was found at a significantly higher level when compared to Pb. Also, a significant correlation was found between As level and alcohol by volume percent. All samples had a hazard quotient and hazard index <1, indicating no non-carcinogenic risk from exposure to single or multiple heavy metals. Some samples exceeded the threshold limit of acceptable cancer risk for As in the high beer consumer group. This assessment showed that in addition to health implications based on the alcohol content of beer, there might be a carcinogenic risk associated with the heavy metals content of these beverages.


Gefahrstoffe ◽  
2020 ◽  
Vol 80 (06) ◽  
pp. 227-233 ◽  
Author(s):  
I. Beslic ◽  
J. Burger ◽  
F. Cadoni ◽  
D. Centioli ◽  
I. Kranjc ◽  
...  

In 2015 the European Joint Research Center (JRC) for air quality in Ispra, Italy, carried out an intercomparison for the determination of PM10 and PM2.5 in ambient air. Five laboratories also analyzed the content of heavy metals (arsenic, cadmium, lead and nickel) in PM10 from filter samples collected during the intercomparison. Thus, all steps from sampling in the field to instrumental quantification of heavy metals in the laboratory could be statistically analyzed. The different techniques of sampling and sample work-up had no significant influence on the analysis results. However, the method of instrumental analysis strongly influenced them: The results of laboratories using the Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) coincided well in most cases. For laboratories using the Energy Dispersed X-Ray Fluorescence (ED-XRF) technique the uncertainty of the results strongly depended on the metal concentration. For cadmium the concentrations generally were too low for analysis by ED-XRF, for arsenic, lead and nickel the relative uncertainties decreased exponentially with increasing concentrations. The relation between metal concentration and the relative uncertainty of analysis results could be described as power functions. Analysis of lead and nickel by ED-XRF is well possible in the range of the EU limit and target values for these metals.


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