scholarly journals Determination of Polycyclic Aromatic Hydrocarbons (PAHs) in the Brackish Water and Sediments of Citarum Irrigation System, Pakis Jaya, Karawang, Indonesia

2020 ◽  
Vol 147 ◽  
pp. 02002
Author(s):  
Edward ◽  
Deny Yogaswara ◽  
Khozanah ◽  
Ita Wulandari ◽  
Dede Falahudin
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Brackish Water ◽  
Irrigation System ◽  
River Mouth ◽  
Soxhlet Extraction ◽  
Dry Weight ◽  
Gas Chromatography Mass Spectrometry ◽  
Diagnostic Ratios ◽  
Polycyclic Aromatic

Fifteen priority polycyclic aromatic hydrocarbons (PAHs) were determined in the sediments and brackish water of Citarum Irrigation System (CIS), Pakis Jaya, Karawang Regency. The samples were analyzed with liquid-liquid extraction for brackish water and Soxhlet Extraction for sediments. The final concentration of PAHs was determined with Gas Chromatography-Mass Spectrometry (GC-MS) and the origins of PAHs were identified through diagnostic ratios method. The total PAH concentrations ranged from 1782 to 2386.88 ng/L in water and from 113 to 405 ng/g dry weight (dw) in sediments. The concentration of total PAHs in sediment was lower than the SQG effects range-low (3442 ng/g). High molecular weight of PAHs dominated both in sediments and water. The origins of PAHs in the sediment and water-based on diagnostic ratios were from petrogenic and pyrogenic sources including petroleum, petroleum combustion, and combustion of organic materials. Overall, environmental conditions in the Citarum irrigation system and its river mouth was moderate level of PAHs contamination.

scholarly journals Determination of the Levels of Polycyclic Aromatic Hydrocarbons in Toasted Bread Using Gas Chromatography Mass Spectrometry

2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
Amal Al-Rashdan ◽  
Murad I. H. Helaleh ◽  
A. Nisar ◽  
A. Ibtisam ◽  
Zainab Al-Ballam
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Wheat Flour ◽  
Aromatic Hydrocarbons ◽  
Soxhlet Extraction ◽  
Gas Chromatography Mass Spectrometry ◽  
White Wheat ◽  
Relative Standard ◽  
Polycyclic Aromatic ◽  
Repeatability And Reproducibility

Concentration of 16 polycyclic aromatic hydrocarbons (PAHs) in eighteen baked bread samples using gas oven toasting were evaluated in this study. Samples were classified into the following categories: (1) bread baked from white wheat flour, (2) bread baked from brown wheat flour, and (3) sandwich bread baked from white wheat flour. Analysis was performed by GC-MS after Soxhlet extraction of the sample and clean up of the extract. The levels of B[a]P was not detected in ten of eighteen samples. In the rest of the samples, B[a]P are varied from 2.83 to 16.54 g/kg. B[a]A, CHR, B[b]FA, B[k] FA, IP, DB[a,h]A, and B[ghi]P concentrations were found to be less than 10.0 g/kg. However, B[a]P are not detected in original white and brown wheat flour. The total PAHs were varied in the range 1.06–44.24 g/kg and 3.08–278.66 g/kg for H-PAH and L-PAH, respectively. Reproducibility and repeatability of the proposed method was calculated and presented in terms of recovery and relative standard deviations (RSD, %). Recoveries were varied from 72.46% to 99.06% with RSD ± 0.28–15.01% and from 82.39% to 95.01% with RSD ±1.91–13.01% for repeatability and reproducibility, respectively. Different commercialized samples of toasted bread were collected and analyzed.

scholarly journals Spatial and Temporal Distributions of Polycyclic Aromatic Hydrocarbons in Sediments from the Canadian Arctic Archipelago

2021 ◽  
Author(s):  
Anne Corminboeuf ◽  
Jean-Carlos Montero-Serrano ◽  
Richard St-Louis
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Surface Sediments ◽  
Temporal Trends ◽  
Canadian Arctic ◽  
Gas Chromatography Mass Spectrometry ◽  
Diagnostic Ratios ◽  
Canadian Arctic Archipelago ◽  
Sediment Samples ◽  
Polycyclic Aromatic

<p>The concentrations of 23 polycyclic aromatic hydrocarbons (PAHs; 16 parent and 7 alkylated PAHs) in 113 surface marine sediment samples, 13 on-land sediment samples and 8 subsampled push cores retrieved from the Canadian Arctic Archipelago (CAA) were calculated. PAHs were extracted via accelerated solvent extraction (ASE) and quantified via gas chromatography-mass spectrometry (GC-MS). The sums of the concentrations 16 PAHs in the surface sediments ranged from 7.8 to 247.7 ng g<sup>-1</sup> (dry weight [dw]) basis). The PAH inputs to the sediments have remained constant during the last century and agree with the results obtained for the surface sediments. Diagnostic ratios indicated that the PAHs in the CAA mainly originate from natural petrogenic sources, with some pyrogenic sources. Temporal trends did not indicate major source shifts and largely indicated petrogenic inputs. Overall, the sediments retrieved from the CAA have low PAH concentrations that are mainly natural.</p>

scholarly journals Determination of Polycyclic Aromatic Hydrocarbons in Agricultural Products

2021 ◽  
Vol 16 (3) ◽  
pp. 127-136
Author(s):  
К.К. Tsymbaliuk ◽  
O.V. Snurnikova ◽  
K.V. Melnyk ◽  
E.M. Fadeev ◽  
V.P. Antonovich
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Matrix Effects ◽  
Soxhlet Extraction ◽  
Agricultural Products ◽  
Gas Chromatography Mass Spectrometry ◽  
Polycyclic Aromatic ◽  
Optimized Conditions ◽  
Gas Chromatographic Separation

The procedure for the determination of polycyclic aromatic hydrocarbons (PAH) in agricultural products on the example of five crops (rapeseed, sunflower, flax, corn, soybeans) by gas chromatography mass spectrometry (GC-MS) was developed. It was showed the advantage of using binary mixtures of organic solvents "hexanedichloromethane" for PAH extraction. The time of Soxhlet extraction is from 6 to 8 hours at optimized conditions. The fractionation and purification of extracts by column chromatography on deactivated alumina was optimized. The article presents the optimization of sample injection in the programmed temperature vaporization (PTV) mode, parameters of gas chromatographic separation and mass spectrometric detection in determining 16 priority PAH in agricultural products. The recoveries, correctness and accuracy of the proposed method were checked by “spikes” with concentrations 0.5, 1.0, 2.5, 5.0 μg kg-1. The linearity of the method was determined by calibration curves obtained for three measurements of calibration solutions with concentrations of 0.5-100 ng mL-1. The effectiveness of the proposed combination of sample preparation and analysis by PTV-GC-MS was studied for linearity, accuracy, matrix effects and reproducibility. The method was validated by linearity, accuracy, matrix effect and reproducibility.

scholarly journals Spatial and Temporal Distributions of Polycyclic Aromatic Hydrocarbons in Sediments from the Canadian Arctic Archipelago

2021 ◽  
Author(s):  
Anne Corminboeuf ◽  
Jean-Carlos Montero-Serrano ◽  
Richard St-Louis
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Surface Sediments ◽  
Temporal Trends ◽  
Canadian Arctic ◽  
Gas Chromatography Mass Spectrometry ◽  
Diagnostic Ratios ◽  
Canadian Arctic Archipelago ◽  
Sediment Samples ◽  
Polycyclic Aromatic

<p>The concentrations of 23 polycyclic aromatic hydrocarbons (PAHs; 16 parent and 7 alkylated PAHs) in 113 surface marine sediment samples, 13 on-land sediment samples and 8 subsampled push cores retrieved from the Canadian Arctic Archipelago (CAA) were calculated. PAHs were extracted via accelerated solvent extraction (ASE) and quantified via gas chromatography-mass spectrometry (GC-MS). The sums of the concentrations 16 PAHs in the surface sediments ranged from 7.8 to 247.7 ng g<sup>-1</sup> (dry weight [dw]) basis). The PAH inputs to the sediments have remained constant during the last century and agree with the results obtained for the surface sediments. Diagnostic ratios indicated that the PAHs in the CAA mainly originate from natural petrogenic sources, with some pyrogenic sources. Temporal trends did not indicate major source shifts and largely indicated petrogenic inputs. Overall, the sediments retrieved from the CAA have low PAH concentrations that are mainly natural.</p>

Polycyclic aromatic hydrocarbons (PAHs) in fine and coarse particles

2013 ◽  
Vol 12 (1) ◽  
pp. 63-70
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Fine Particles ◽  
Gas Chromatography Mass Spectrometry ◽  
Diagnostic Ratios ◽  
Coarse Particles ◽  
Polycyclic Aromatic ◽  
The Mean ◽  
Short Time

<p>About 140 samplings of fine and coarse particles were gathered during the year 2006 in Kozani that represent an urban area surrounded by opencast coal mining. A low volume dichotomus sampler has been used to trap suspended particles. The filters used were teflon, which are ideal for analysis in the determination of PAHs. The determination of Polycyclic Aromatic Hydrocarbons (PAHs) has been carried out by the use of the analytic technique of large volume injection and gas chromatography – mass spectrometry (LVI - GC/MS). The extraction of substances has been made in a two stage procedure, firstly with agitation in a magnetic shaker and secondly by the use of ultrasonic bath. This technique has given high recoveries of PAHs, in short time intervals. The mean daily concentrations of fine particles varied from 4 to 48 μg m-3 and annual mean was 16 μg m-3. The mean daily concentrations of coarse particles respectively varied from 2 to 67 μg m-3 with 23 μg m-3 annual mean concentration. The ΣPAH concentrations for fine samples were 4.80 ± 7.06 ng m-3 and for coarse samples were 1.36 ± 1.59 ng m-3. The mean B[a]Py concentration for fine particles was 0.38 ng m-3. Finally, diagnostic ratios were used to characterize and identify PAHs emission source in this study.</p>

scholarly journals UNSUITABILITY OF THE ZEK/AFPS TEST METHOD FOR THE DETERMINATION OF POLYCYCLIC AROMATIC HYDROCARBONS IN CARBON BLACK

2018 ◽  
Vol 91 (1) ◽  
pp. 225-250
Author(s):  
Stephan Hamm ◽  
Kai Hölscher ◽  
Thomas M. Gruenberger ◽  
Gilles Moninot ◽  
Wolfgang Örtel ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Carbon Black ◽  
Aromatic Hydrocarbons ◽  
Soxhlet Extraction ◽  
Test Method ◽  
Gas Chromatography Mass Spectrometry ◽  
Specific Method ◽  
Relative Distribution ◽  
Polycyclic Aromatic

ABSTRACT The Zentraler Erfahrungsaustauschkreis/Ausschuss für Produktsicherheit (ZEK/AfPS) analytical method established within the Geprüfte Sicherheit (GS) quality label for the determination of 18 polycyclic aromatic hydrocarbons (PAHs) in consumer articles made out of rubber or plastic was demonstrated as unsuitable for carbon black (CB). High molecular weight PAHs are not efficiently extracted from CB through the ZEK/AfPS method when compared with the CB-specific method consisting of 48 h Soxhlet extraction. The low extraction efficiency correlates with the low recovery or loss of the deuterated isotopologues added prior to the 1 h ZEK/AfPS ultrasound extraction of the native PAHs. These phenomena are dependent on the type and concentration level of the various PAHs and are attributed to the relative distribution and adsorption of the native and deuterated PAHs between the CB surface and the toluene phase. These findings are based on comparative extractions of various carbon black grades, use of a larger set of deuterated isotopologues for gas chromatography/mass spectrometry (GC/MS) quantification of native PAHs, and monitoring of the recoveries of the deuterated PAHs added prior to or after the ZEK/AfPS extractions.

Assessment of Polycyclic Aromatic Hydrocarbons Contaminations in Sediments of Love River Mouth, Taiwan

2013 ◽  
Vol 328 ◽  
pp. 323-327
Author(s):  
Cheng Di Dong ◽  
Chih Feng Chen ◽  
Yi Kuo Chang ◽  
Chiu Wen Chen
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Biological Effects ◽  
Sediment Quality ◽  
River Mouth ◽  
Diagnostic Ratios ◽  
Mouth Region ◽  
Quality Guidelines ◽  
Polycyclic Aromatic ◽  
Pahs Concentration

The surface samples were collected from the Love River mouth, Taiwan and analyzed for polycyclic aromatic hydrocarbons (PAHs). Total PAHs concentrations varied from 785 to 1,893 ng/g dw. The spatial distribution of PAHs reveals that the PAHs concentration is relatively high in the river mouth region, and gradually diminishes toward the harbor region. Diagnostic ratios showed that the possible source of PAHs in the Love River mouth could be petroleum combustion. The toxic equivalent concentrations (TEQcarc) of PAHs varied from 117 to 272 ng TEQ/g dw. Higher total TEQcarc values were found in the river mouth region. As compared with the US Sediment Quality Guidelines (SQGs), the observed levels of PAHs at Love River mouth were lower than the effects range low (ERL), and would probably not exert adverse biological effects.

scholarly journals Bio-concentration of Polycyclic Aromatic Hydrocarbons in the grey Mangrove (Avicennia marina) along eastern coast of the Red Sea

2017 ◽  
Vol 15 (1) ◽  
pp. 344-351 ◽  
Author(s):  
M. El-Amin Bashir ◽  
Amr El-Maradny ◽  
Mohsen El-Sherbiny ◽  
Rasiq K. T., Mohammed Orif
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Red Sea ◽  
Aromatic Hydrocarbons ◽  
Mangrove Ecosystem ◽  
Gas Chromatography Mass Spectrometry ◽  
Eastern Coast ◽  
Diagnostic Ratios ◽  
Total Pahs ◽  
Polycyclic Aromatic ◽  
Grey Mangrove

AbstractThere are numerous sources of chemical pollutants which can impact the mangrove ecosystem through adjacent waters, industrial and sewage discharges and air depositions. Polycyclic aromatic hydrocarbons (PAHs) are semi volatile ubiquitous anthropogenic pollutants detected in all environmental compartments. In the monitoring framework for the mangrove ecosystem along the Red Sea coast of Saudi Arabia, nine mangrove stands were examined for the accumulation of PAHs. Polycyclic aromatic hydrocarbons were measured using Gas Chromatography-Mass Spectrometry (GC-MS). The mean values detected for total PAHs in sediments, roots and leaf were 2.98, 8.57 and 23.43 ng/g respectively. The trend of the total PAHs concentration in all sites showed the descending order: leaf > roots > sediments. Beside the sandy nature of the sediments, the presences of all stands in remote areas fare from the direct anthropogenic effects lead to these relative low values. PAH bio-concentration factors for leaf are two to three magnitudes higher than that in roots, suggesting atmosphere deposition /leaf uptake mechanism in addition to the sediment/root mechanism. The diagnostic ratios revealed that the sources of PAHs are mainly pyrogenic.

Characterization of PM2.5- and PM10-Bound Polycyclic Aromatic Hydrocarbons in Urban and Rural Areas in Beijing during the Winter

2012 ◽  
Vol 518-523 ◽  
pp. 1479-1491 ◽  
Author(s):  
Xue Ling Dong ◽  
Da Meng Liu ◽  
Shao Peng Gao
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Rural Areas ◽  
Gas Chromatography Mass Spectrometry ◽  
Diagnostic Ratios ◽  
Gas Combustion ◽  
Polycyclic Aromatic ◽  
Urban And Rural Areas ◽  
Pm2.5 And Pm10 ◽  
Extractable Organic Matter

Polycyclic aromatic hydrocarbons (PAHs) were here investigated in airborne particulate matter (PM2.5 and PM10) samples collected in urban (including residential, commercial, industrial, and traffic zones) and rural areas in and around Beijing from December 2005 to January 2006. Sixteen polycyclic aromatic hydrocarbons adsorbed onto fine- (PM2.5) and coarse- (PM10) grained samples were analyzed by gas chromatography-mass spectrometry (GC-MS). The mean total PAH concentrations were 30.1 and 80.1 ng/m3 in PM2.5, and 44.1 and 99.8 ng/m3 in PM10 in urban and rural areas, respectively. PAHs were mostly adsorbed on small inhalable particles (>50%) with four to six rings, which dominated both fractions. Strong correlations between PM-associated extractable organic matter (EOM) and particulate PAHs were found, especially in PM2.5, indicating that PM-PAHs concentrations were strongly influenced by PM-associated EOM. Of the different functional areas studied, the total PAH concentrations in both fractions were highest in industrial and rural areas and lowest in traffic zones. This may have been the result of the different emission sources and more efficient energy structures that occur during the winter. Distribution profiles and diagnostic ratios revealed that coal combustion was the major source of PM2.5- and PM10- associated PAHs. Additional sources of PAHs may include vehicle emissions, natural gas combustion and wood burning. BaP-based toxic equivalence factor (BaPeq), BaP-equivalent carcinogenic power (BaPE) and a sum of five carcinogenic PAHs showed that the industrial and rural areas were the most vulnerable to PAHs.

Distribution and Source of Polycyclic Aromatic Hydrocarbons in Surface Sediments of Jen-Gen River Mouth, Taiwan

2012 ◽  
Vol 178-181 ◽  
pp. 992-995
Author(s):  
Chih Feng Chen ◽  
Chiu Wen Chen ◽  
Cheng Di Dong
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Biological Effects ◽  
Sediment Quality ◽  
River Mouth ◽  
Diagnostic Ratios ◽  
Mouth Region ◽  
Quality Guidelines ◽  
Polycyclic Aromatic ◽  
Pahs Concentration

Surface samples were collected from the Jen-Gen River mouth, Taiwan and analyzed for polycyclic aromatic hydrocarbons (PAHs). Total PAHs concentrations varied from 283 to 1,277 ng/g, with a mean concentration of 671 ng/g. The spatial distribution of PAHs reveals that the PAHs concentration is relatively high in the river mouth region, and gradually diminishes toward the harbor region. Diagnostic ratios showed that the possible source of PAHs in the Jen-Gen River mouth could be petroleum combustion. The toxic equivalent concentrations (TEQcarc) of PAHs varied from 43 to 169 ng TEQ/g. Higher total TEQcarc values were found in the river mouth region. As compared with the US Sediment Quality Guidelines (SQGs), the observed levels of PAHs at Jen-Gen River mouth were lower than the effects range low (ERL), and would probably not exert adverse biological effects.

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