Poly cyclic aromatic hydrocarbon in sediments taken from the Severn Estuary drainage system

1979 ◽  
Vol 22 (1) ◽  
pp. 653-659 ◽  
Author(s):  
Edward D. John ◽  
Michael Cooke ◽  
Graham Nickless
Keyword(s):  
Aromatic Hydrocarbon ◽  
Drainage System ◽  
Severn Estuary ◽  
Poly Cyclic Aromatic Hydrocarbon

A rapid and simple method for the analysis of 1-hydroxypyrene glucuronide: a potential biomarker for poly cyclic aromatic hydrocarbon exposure

1995 ◽  
Vol 16 (12) ◽  
pp. 2909-2915 ◽  
Author(s):  
Ritu Singh ◽  
Milan Tuček ◽  
Karel Maxa ◽  
Tenglerová Jana ◽  
Eric H. Weyand
Keyword(s):  
Aromatic Hydrocarbon ◽  
Simple Method ◽  
Poly Cyclic Aromatic Hydrocarbon ◽  
Potential Biomarker

scholarly journals ASSESSMENT OF THE SPATIAL DISTRIBUTION AND TOXICITY OF POLY CYCYLIC AROMATIC HYDROCARBON (PAH) IN AMBIENT AIR OF EGBEMA COMMUNITIES, IMO STATE.

2020 ◽  
Vol 45 (6) ◽  
Author(s):  
G. C. Anyanwu ◽  
A. J. Chinweub ◽  
S. Uzoekwe ◽  
C. A. Odilora
Keyword(s):  
Gas Chromatography ◽  
Spatial Distribution ◽  
Aromatic Hydrocarbon ◽  
Premature Death ◽  
Ambient Air ◽  
Pleurozium Schreberi ◽  
Chronic Asthma ◽  
Respiratory Problems ◽  
Poly Cyclic Aromatic Hydrocarbon ◽  
The Mean

Mosses plants (pleurozium schreberi) was used to trap Poly cyclic aromatic hydrocarbon in ambient air of oil producing areas of Egbema, where the distribution and assessment of pollution in ambient air from six locations where harvested for Six months (Dry Season). Gas chromatography was used to analyze the samples where the mean average of PAH recorded Pyrene with highest concentrations of 0.146(µg/kg) followed by Fluoranthane with 0.051(µg/kg) and their locations were recorded highest at AQOWH, AQEOJ with 2.86(µg/kg) followed by AQEWH and AQEWFS with 1.73(µg/kg) and 1.87(µg/kg) respectively. AQEOJ and AQOWH have largest variation spread of PAH in all locations, while Fluorathene recorded highest variation spread in all Locations. It is also noted that not only oil exploration generates PAH spread in Egbema, there are other vices that also contribute to daily exposures PAH which is associated with increased incidences of premature death, chronic asthma and as well as respiratory problems in children.

scholarly journals Comparison of Biodegradation Performance of Marine Sponge Symbiont Bacteria Consortium Against Anthracene and Pyrene

2021 ◽  
Author(s):  
Ismail Marzuki ◽  
Ruzkiah Asaf ◽  
Mudian Paena ◽  
Admi Athirah ◽  
Khairun Nisaa ◽  
...  
Keyword(s):  
Aromatic Hydrocarbon ◽  
Marine Sponge ◽  
Pseudomonas Stutzeri ◽  
Bacterial Consortium ◽  
Previous Method ◽  
Petroleum Processing ◽  
Bacterial Cells ◽  
Poly Cyclic Aromatic Hydrocarbon ◽  
Petroleum Processing Industry ◽  
And Performance

Every petroleum processing industry produces sewage sludge containing several types of poly-cyclic aromatic hydrocarbon (PAHs) components. The degradation of PAH components by physical, biological and chemical methods is not efficient. The use of marine sponge symbiont bacteria is considered an alternative method in the degradation and reduction of PAHs com-pared to the previous method. This study aims to explore the potential and performance of a consortium of sponge symbiont bacteria in degrading anthracene and pyrene. There are three types of bacteria (Bacillus pumilus strain GLB197, Pseudomonas stutzeri strain SLG510A3-8, Acineto-bacter calcoaceticus strain SLCDA 976) were mixed to form a consortium. The interaction between the bacterial consortium suspension and PAH components was measured at 5-day intervals for 25 days. The biodegradation performance of bacteria on PAHs samples was determined based on five biodegradation parameters. The analysis results showed a decrease in the concentration of anthracene (21.89%) and pyrene (7.71%), equivalent to a ratio of 3: 1. The data was followed by a decrease in the abundance of anthracene (60.30%) and pyrene (27.52%), an equivalent ratio of 2: 1. The level of degradation of the pyrene component is lower than that of the anthracene compo-nent, presumably due to the higher toxicity of pyrene and the more stable molecular structure, making it difficult for bacterial cells to destroy it. The biodegradation products are organic compounds of alcohol, aldehyde, carboxylic acids and a small proportion of aromatic hydrocarbon components. Keywords: performance; biodegradation; bacterial consortium; marine sponge; PAHs

Stereological Analyses of Hepatocyte Ultrastructure Monitor Arsenic Liver Burdens

1980 ◽  
Vol 38 ◽  
pp. 442-443
Author(s):  
E. M. B. Sorensen ◽  
R. R. Mitchell ◽  
L. L. Graham
Keyword(s):  
Drainage System ◽  
Water Levels ◽  
Ultrastructural Changes ◽  
Hepatocyte Ultrastructure ◽  
Lepomis Cyanellus ◽  
Large Numbers ◽  
Activation Data ◽  
Water Analyses ◽  
Municipal Lake ◽  
Green Sunfish

Endemic freshwater teleosts were collected from a portion of the Navosota River drainage system which had been inadvertently contaminated with arsenic wastes from a firm manufacturing arsenical pesticides and herbicides. At the time of collection these fish were exposed to a concentration of 13.6 ppm arsenic in the water; levels ranged from 1.0 to 20.0 ppm during the four-month period prior. Scale annuli counts and prior water analyses indicated that these fish had been exposed for a lifetime. Neutron activation data showed that Lepomis cyanellus (green sunfish) had accumulated from 6.1 to 64.2 ppm arsenic in the liver, which is the major detoxification organ in arsenic poisoning. Examination of livers for ultrastructural changes revealed the presence of electron dense bodies and large numbers of autophagic vacuoles (AV) and necrotic bodies (NB) (1), as previously observed in this same species following laboratory exposures to sodium arsenate (2). In addition, abnormal lysosomes (AL), necrotic areas (NA), proliferated rough endoplasmic reticulum (RER), and fibrous bodies (FB) were observed. In order to assess whether the extent of these cellular changes was related to the concentration of arsenic in the liver, stereological measurements of the volume and surface densities of changes were compared with levels of arsenic in the livers of fish from both Municipal Lake and an area known to contain no detectable level of arsenic.

BIM-Based Automated Drainage System Design in Prefabrication Construction

2020 ◽  
Author(s):  
Nan Zhang ◽  
Yichen Tian ◽  
Jingwen Wang ◽  
Mohamed Al-Hussein
Keyword(s):  
System Design ◽  
Drainage System

Penentuan Metode Intensitas Hujan Berdasarkan Karakteristik Hujan dari Stasiun Pengamat Hujan Disekitar Kecamatan Karawang Timur

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Melisa Permatasari ◽  
M. Candra Nugraha ◽  
Etih Hartati
Keyword(s):  
Drainage System ◽  
Daily Rainfall ◽  
Intensity Analysis ◽  
Rain Intensity ◽  
Rainy Period ◽  
Discharge Plan ◽  
Calculation Results ◽  
Value Determination ◽  
Maximum Daily Rainfall ◽  
Method Approach

<p>The rain intensity is the high rainfall in unit of time. The length of rain will be reversed by the amount rain intensity. The shorter time the rain lasts, the greater of the intensity and re-period of its rain. The value of rain intensity is required to calculate the flood discharge plan on the drainage system planning area in East Karawang district. Determining the value rain intensity is required the maximum daily rainfall data obtained from the main observer stations in the Plawad station planning area. The method of determination rain intensity analysis can be done with three methods: Van Breen, Bell Tanimoto and Hasper der Weduwen. Selected method is based on the smallest deviation value. Determination deviation value is determined by comparing rain intensity value of Van Breen method, Bell Tanimoto, Hasper der Weduwen. By comparing rain intensity value of the Van Breen method, Bell Tanimoto, Hasper der Weduwen with the results of calculating three methods through the method approach Talbot, Sherman and Ishiguro. Calculation results show that the method of rain has smallest deviation standard is method Van Breen with Talbot approach for rainy period (PUH) 2, 5, 10, 25, 50 and 100 years.</p>

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