Polycyclic aromatic hydrocarbons removal from aqueous solution with PABA-MCM-41/polyethersulfone mixed matrix membranes

2021 ◽  
Author(s):  
José Arnaldo S. Costa ◽  
Victor H. V. Sarmento ◽  
Luciane P. C. Romão ◽  
Caio M. Paranhos
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Fossil Fuels ◽  
Rice Husk Ash ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Mixed Matrix ◽  
Adsorption Processes ◽  
Polycyclic Aromatic ◽  
Mcm 41

Abstract Polycyclic aromatic hydrocarbons (PAHs) are one of the most recalcitrant pollutant originated from the burning of coal, petroleum, and other fossil fuels. The human exposure to PAHs may contribute to develop several carcinogenesis mechanisms. The aim of the present study was to develop a mixed matrix membrane (MMM) based on polyethersulfone (PES) and functionalized mesoporous material for the remediation of PAHs mixture by adsorption processes. MCM-41-based mesoparticles were obtained from biomass reuse of rice husk ash (RHA) and functionalized with p-aminobenzoic acid (PABA). The hydrothermal and casting methods were effective and sustainable in the preparation of PABA-MCM-41 and PES-based MMMs, respectively. PES-based MMMs presented an excellent distribution of the arrays incorporated and small-angle ordering. The absorption of PAHs was influenced by the incorporation of PABA-MCM-41 within the PES matrix.

Analysis of polycyclic aromatic hydrocarbons using porous material MCM-41 as a sorbent

2013 ◽  
Vol 5 (23) ◽  
pp. 6874 ◽  
Author(s):  
Chang-Feng Ou-Yang ◽  
Jin-Yu Liu ◽  
Hsien-Ming Kao ◽  
Jei-Hung Wang ◽  
Shi-Ping Liu ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Porous Material ◽  
Aromatic Hydrocarbons ◽  
Polycyclic Aromatic ◽  
Mcm 41

scholarly journals Background levels of polycyclic aromatic hydrocarbons and legacy organochlorine pesticides in wheat sampled in 2017 and 2018 in Poland

2020 ◽  
Vol 192 (2) ◽  
Author(s):  
Marek Łukasz Roszko ◽  
Karolina Juszczyk ◽  
Magdalena Szczepańska ◽  
Olga Świder ◽  
Krystyna Szymczyk
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Health Risks ◽  
Aromatic Hydrocarbons ◽  
Fossil Fuels ◽  
Daily Intake ◽  
Value Assessment ◽  
Case Scenario ◽  
Worst Case ◽  
Background Levels ◽  
Polycyclic Aromatic

AbstractBoth polycyclic aromatic hydrocarbons (PAHs) and legacy organochlorine insecticides (OCPs), including DDT, are dangerous chemical contaminants. The aims of this study were to (i) determine background levels of PAHs and legacy OCPs for wheat samples collected in 2017 and 2018 in Poland, (ii) identify differences between levels in wheat harvested in various regions of Poland, (iii) evaluate differences in contamination sources manifested by the profiles of the identified chemicals, (iv) identify possible correlations between different classes of chemicals present in wheat, and (v) assess the health risks associated with the presence of PAHs and OCPs in Polish wheat. Average concentrations found in the samples were 0.09 ± 0.03 μg kg−1 for benzo[a]pyrene (BaP) (formerly used as a single PAH marker), 0.43 ± 0.16 for the more recently introduced collective PAH 4 marker (benzo[a]anthracene + benzo[a]pyrene + chrysene + benzo[b]fluoranthene), and 1.07 ± 0.68 μg kg−1 for DDT and its metabolites. The PAH profiles indicated contamination from combustion-related emission sources (liquid fossil fuels, coal, biomass). Health risks associated with the presence of PAHs and OCPs in cereals were assessed using the margin of exposure (MOE) approach. The MOE values calculated based on the highest concentrations found in this study exceeded 50,000 for both BaP and PAH 4. The calculated worst-case scenario value for DDT and metabolites was as low as 0.3% of the respective tolerable daily intake (TDI) value. Assessment of dietary risk has shown that the presence of the two contaminant classes in Polish wheat grains is of low concern.

scholarly journals Polycyclic Aromatic Hydrocarbons and Breast Cancer: A Review of the Literature

Breast Care ◽  
2015 ◽  
Vol 10 (5) ◽  
pp. 316-318 ◽  
Author(s):  
Jessica Korsh ◽  
Allison Shen ◽  
Kristen Aliano ◽  
Thomas Davenport
Keyword(s):  
Breast Cancer ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Dna Adducts ◽  
Aromatic Hydrocarbons ◽  
Fossil Fuels ◽  
Exposure Dose ◽  
The Body ◽  
Case Control Studies ◽  
Polycyclic Aromatic

Polycyclic aromatic hydrocarbons (PAHs) exist and persist in the atmosphere due to the incomplete combustion of fossil fuels, and are established human carcinogens. The influence of PAHs on the development of breast cancer, the most commonly diagnosed cancer in women worldwide, remains unclear. As established risk factors only account for approximately 41% of the breast cancer cases in the USA, researchers have sought to uncover environmental factors involved in breast cancer development. The breasts are particularly susceptible to aromatic carcinogenesis, and the implementation of biomarkers has provided promising insights regarding PAH-DNA adducts in breast cancer. The use of biomarkers measuring PAH-DNA adducts assesses exposure to eliminate the bias inherent in self-reporting measures in case-control studies investigating the link between PAHs and cancer. Adduct levels reflect exposure dose as well as how the body responds to this exposure, which is partially attributable to genetic variability. Evidence suggests that exposure to PAHs has a causational effect on breast cancer in humans, yet this interaction is not clearly understood. In vitro and animal-based studies have consistently revealed that exposure to PAHs deleteriously affects breast tissue, but there is no definitive link between these compounds and breast cancer.

scholarly journals A Review on Cancer Probability in Human Beings Due to Environmental Impact of Polycyclic Aromatic Hydrocarbons (PAHs) and Remediation

2021 ◽  
Vol 64 (3) ◽  
pp. 275-286
Author(s):  
Ayesha Jamal Zaidi ◽  
Hina Ahsan ◽  
Alia Bano Munshi
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Health Risks ◽  
Aromatic Hydrocarbons ◽  
Forest Fires ◽  
Fossil Fuels ◽  
Coal Gasification ◽  
Oil Spills ◽  
Human Beings ◽  
Environmental Consequences ◽  
Polycyclic Aromatic

Environmental consequences of polycyclic aromatic hydrocarbons (PAHs) were studied to evaluate possible human health risks, subsequent cancer probabilities and remediation tools for their eradication. Polycyclic aromatic hydrocarbons (PAHs) are generated globally through incomplete combustion of organic materials and emitted in the environment by various anthropogenic routes including residential heating, coal gasification, liquefying plants, cooking practices, thermal distillation of petroleum and coal, oil spills, ships embankments, incomplete burning of fossil fuels, forest fires, asphalt, engines and vehicles exhaust. Their high lipophilicity and marked tendency for localization in body fats made them easily absorbed through dermis, nasal mucosa and gastrointestinal tract of mammals. The reviewed data show estimated carcinogenic potency equivalent concentrations exceeding the screened value for food stuffs including fish species indicating significant carcinogenic health risks associated with the consumption of fishes. Many remedial measures have been taken to exterminate persistent organic pollutants including PAHs out of which bio-remediation being comparatively safer and economical methodology. Keywords:   

scholarly journals Presence and concentration of polycyclic aromatic hydrocarbons (PAHs) in sediments and organisms from Tampamachoco coastal lagoon and Tuxpan River, Veracruz; México.

2021 ◽  
Author(s):  
Alfonso V. Botello ◽  
Guadalupe Ponce-Vélez ◽  
Susana Villanueva F.
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Fossil Fuels ◽  
Average Concentration ◽  
Threshold Concentration ◽  
Polycyclic Aromatic ◽  
Estuarine Lagoon ◽  
Persistent Organic Compounds ◽  
Caranx Hippos ◽  
Total Concentrations

Abstract Polycyclic aromatic hydrocarbons (PAHs) have carcinogenic and mutagenic properties and their main origin in the environment is the burning of fossil fuels and organic material and they are considered high priority Persistent Organic Compounds (POPs). In the present study (March and August 2018) the concentrations of the 16 priority PAHs were analyzed in sediments and organisms (fish and oysters) in the estuarine-lagoon system Tuxpan-Tampamachoco, Veracruz; Mexico.The analysis of these compounds was carried out by means of gas chromatography-FID and mass spectrometry. In March (dry season) the average concentration of PAHs in sediments was 0.86 ± 0.39 μg/g and in August (rainy season) it was 1.14 ± 0.45 μg/g. During both collections, chrysene presented the highest total concentrations and a domain of the compounds with 4 benzene rings was observed, therefore, pyrolytic sources of contribution predominated. The highest concentrations of PAHs occurred in 2 stations located in the Tuxpan riverbed and both exceeded the threshold concentration to cause adverse effects to the benthic community.The analysis of PAHs in organism tissues was carried out in 4 species of fish and one mollusk. In march, the species with the highest concentration was Bagre marinus with 88.87 μg/g and in august it corresponded to the Caranx hippos species with 26.82 μg/g and the compound determined with the highest presence was benzo(b)fluoranthene.Finally, the tendency of accumulation of PAHs in the evaluated matrices was: fish> sediments> mollusks.

Sign in / Sign up

Export Citation Format

Share Document