Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The deposited dose in the human respiratory tract and its influencing factors were investigated for 8 urban/suburban locations within Greek cities. A dosimetry model (ExDoM2) was implemented assuming a 24-h exposure scenario to ambient PM whereby regional deposition rates were obtained. Simulations were performed considering three cases (Sahara dust, cold, and warm periods) with seasonal and diurnal variations examining the relative sources and other influencing factors in each case. Health risk indexes such as the relative risk and attributable fraction were also estimated. Overall, higher daily deposited dose was obtained for all urban compared with suburban locations (p < 0.05) and for cold compared with the warm periods (252-820 μg for cold period and 300-686 μg for warm period) for all locations. This finding was associated with increased deposition rate on cold period during evening/night hours, as a result of significant heating emissions. Besides that, most of the urban locations showed relative comparable deposition rates during the day, compared with the daily mean, for the two periods (cold and warm), indicating that urban-associated sources such as exhaust emissions and road dust resuspension contribute similarly to the deposited dose irrespectively of the season. Finally, the highest deposited dose was obtained during Sahara dust events ranged from 1881 to 4648 μg.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s11356-021-12815-y | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Evaluation of the liver load index as a predictor of liver exposure in right breast radiotherapy.
Rep Pract Oncol Radiother
August 2025
Department of Electroradiology, Poznan University of Medical Sciences, Poznan, Poland.
Background: To compare doses deposited to the liver during right breast radiotherapy with static and dynamic radiotherapy techniques. The second aim was to introduce the liver load index (LLI), a novel index developed to estimate radiation exposure to the liver prior to treatment selection.
Materials And Methods: We prepared radiotherapy treatment plans for ten patients with right breast cancer.
H-silicene nanosheets as a novel therapeutic approach for disuse muscle atrophy by modulating macrophage polarization.
Mater Today Bio
October 2025
Department of Sports Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, 200080, China.
Unlabelled: Disuse muscle atrophy (DMA) is characterized by progressive loss of muscle mass and strength, often accompanied by inflammation and macrophage imbalance. Here, we introduce hydrogenated silicene nanosheets (H-silicene) as a novel nanotherapeutic strategy to mitigate DMA through modulating macrophage polarization. H-silicene exhibited good biocompatibility and sustained hydrogen release.
View Article and Find Full Text PDF[ alleviates bleomycin-induced pulmonary fibrosis in mice by inhibiting transformation of lung fibroblasts into myofibroblast].
Nan Fang Yi Ke Da Xue Xue Bao
August 2025
Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China.
Objectives: To investigate the effect of (HP) on bleomycin (BLM)-induced pulmonary fibrosis in mice and on TGF-β1-induced human fetal lung fibroblasts (HFL1).
Methods: Thirty male C57BL/6 mice were randomly divided into control group, BLM-induced pulmonary fibrosis model group, low- and high-dose HP treatment groups (3 and 21 mg/kg, respectively), and 300 mg/kg pirfenidone (positive control) group. The effects of drug treatment for 21 days were assessed by examining respiratory function, lung histopathology, and expression of fibrosis markers in the lung tissues of the mouse models.
Molecular-level study of the effect of nitrogen addition levels on soil dissolved organic matter composition in a desert steppe of northwest China.
Int J Biol Macromol
September 2025
Faculty of Agronomy and Agricultural Sciences, University of Dschang, PO. Box 222, Dschang, Cameroon.
Dissolved organic matter (DOM) plays a key role in grassland carbon biogeochemistry and shows sensitivity to global climate change, particularly nitrogen (N) deposition. We investigated the soil DOM molecular composition by UV-Vis and fluorescence spectroscopy, and FT-ICR MS through a N addition experiment (CK, N5, N10, N20, and N40 [0, 5, 10, 20, and 40 g N m-2 year-1, respectively]) in a desert steppe of northwest China. Moderate N inputs (N5-N20) caused a dose-dependent increase in DOM content (9.
View Article and Find Full Text PDFTheoretical model for estimation and control of radon exposure dose considering ventilation pressure drop in ventilation networks.
J Environ Radioact
September 2025
School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan, 421001, China.
To minimize the occupational radiation hazards for workers in uranium or associated radioactive underground mines, it is necessary to control the radon exposure dose in each branch of the mine ventilation network. Firstly, a mathematical model of determining potential alpha energy concentration (PAEC) of radon daughters in a single branch was proposed on the basis of the previous radon concentration calculation model in the ventilation network considering ventilation pressure drop. Then, two estimation models of radon exposure dose based on the equilibrium radon concentration and PAEC of radon daughters are introduced.
View Article and Find Full Text PDF