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Effects of pyrolysis conditions on sewage sludge-biochar properties and potential risks based on PAH contents.
Environ Res
November 2024
Southern Federal University, Rostov-on-Don, Russian Federation. Electronic address:
Pyrolysis of sewage sludge can significantly reduce industrial waste while producing high-value biochar for soil improvement. This study aimed to evaluate the quality and safety of biochar from sewage sludge under different pyrolysis conditions. Optimal carbonization conditions (700 °C, 60 min, 5 °C/min) were identified by analyzing the physicochemical properties, elemental composition, structural characteristics, and the specific surface area of biochar.
View Article and Find Full Text PDFDynamic estimation of the soil environmental carrying capacity for Benzo(a)pyrene in an industrial city, China: Insight from both duration and rate of regional emission.
Environ Pollut
January 2025
State Key Laboratory of Urban and Regional Ecology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
An in-depth investigation of the maximum environmental load is crucial for soil security and pollution prevention. This research focused on soil environmental carrying capacity (SECC) for different risk receptors in a Chinese industrial city. By determining risk threshold for various land use types, we integrated mass balance and iterative models to capture dynamic net input fluxes with spatial heterogeneity.
View Article and Find Full Text PDFContent of Selected Harmful Metals (Zn, Pb, Cd) and Polycyclic Aromatic Hydrocarbons (PAHs) in Honeys from Apiaries Located in Urbanized Areas.
Foods
October 2024
Department of Quality Management, Gdynia Maritime University, ul. Morska 81-87, 81-225 Gdynia, Poland.
The chemical composition of honey, and therefore its quality and properties, is influenced by many factors, including its botanical origin and the harvesting conditions-the location of the apiary, access to melliferous plants, the proximity of industrial infrastructure and communication routes, etc. This quality may be reduced by undesirable, toxic compounds that penetrate honey from a contaminated environment, such as heavy metals and residues from other environmental pollutants. Therefore, the aim of our research was to assess the quality of honeys from urbanized areas-in particular, to assess contamination with heavy metals and persistent organic pollutants (PAHs).
View Article and Find Full Text PDFComparison of urinary 3-hydroxybenzo(a)Pyrene (3-OHBaP) and trans-anti-7,8,9,10-tetrahydroxy-7,8,9,10-tetrahydrobenzo(a)Pyrene (TetraolBaP) as biomarkers of exposure to carcinogenic BaP.
Int J Hyg Environ Health
January 2025
University of Grenoble Alpes, CNRS, Grenoble INP, CHU Grenoble Alpes, TIMC, 38000, Grenoble, France. Electronic address:
Article Synopsis
- Biomonitoring of Benzo(a)Pyrene (BaP) exposure in workers is typically based on urinary 3-hydroxybenzo(a)pyrene (3-OHBaP), but the new metabolite TetraolBaP has potential as an additional biomarker, yet remains unstudied in occupational contexts.* -
- In a study of 118 aluminium smelting workers, high levels of 1-hydroxypyrene (1-OHP) and 3-OHBaP were frequently found, suggesting significant exposure to PAHs, with notable correlations among the three biomarkers measured.* -
- TetraolBaP appears to be a promising biomarker for BaP's metabolic activation,
MicroRNAs from Yishen Tongluo formula can repair sperm DNA damage caused by benzo()pyrene.
Pharm Biol
December 2024
Henan Province Hospital of Traditional Chinese Medicine, Zhengzhou, Henan, China.
Context: Plant microRNAs (miRNAs) present in Yishen Tongluo formula (YSTL, a traditional Chinese herbal medicine formula) are considered as potential therapeutic drugs for reducing the sperm DNA fragmentation index (DFI).
Objective: To study the effectiveness of plant miRNAs in YSTL for repairing mouse sperm DNA damage caused by benzo()pyrene (BaP).
Methods And Materials: Twenty-four male SPF ICR (CD1) mice were divided into control, BaP and YSTL groups.
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