Dataset Information

Sources and geographic origin of particulate matter in urban areas of the Danube macro-region: The cases of Zagreb (Croatia), Budapest (Hungary) and Sofia (Bulgaria).

ABSTRACT: The contribution of main PM pollution sources and their geographic origin in three urban sites of the Danube macro-region (Zagreb, Budapest and Sofia) were determined by combining receptor and Lagrangian models. The source contribution estimates were obtained with the Positive Matrix Factorization (PMF) receptor model and the results were further examined using local wind data and backward trajectories obtained with FLEXPART. Potential Source Contribution Function (PSCF) analysis was applied to identify the geographical source areas for the PM sources subject to long-range transport. Gas-to-particle transformation processes and primary emissions from biomass burning are the most important contributors to PM in the studied sites followed by re-suspension of soil (crustal material) and traffic. These four sources can be considered typical of the Danube macro-region because they were identified in all the studied locations. Long-range transport was observed of: a) sulphate-enriched aged aerosols, deriving from SO₂ emissions in combustion processes in the Balkans and Eastern Europe and b) dust from the Saharan and Karakum deserts. The study highlights that PM pollution in the studied urban areas of the Danube macro-region is the result of both local sources and long-range transport from both EU and no-EU areas.

SUBMITTER: Perrone MG

PROVIDER: S-EPMC5821697 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature

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Sources and geographic origin of particulate matter in urban areas of the Danube macro-region: The cases of Zagreb (Croatia), Budapest (Hungary) and Sofia (Bulgaria).

Perrone M G MG Vratolis S S Georgieva E E Török S S Šega K K Veleva B B Osán J J Bešlić I I Kertész Z Z Pernigotti D D Eleftheriadis K K Belis C A CA

The Science of the total environment 20171211

The contribution of main PM pollution sources and their geographic origin in three urban sites of the Danube macro-region (Zagreb, Budapest and Sofia) were determined by combining receptor and Lagrangian models. The source contribution estimates were obtained with the Positive Matrix Factorization (PMF) receptor model and the results were further examined using local wind data and backward trajectories obtained with FLEXPART. Potential Source Contribution Function (PSCF) analysis was applied to ...[more]

PMID: 29734626

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Project description:BackgroundMedical students, as future health-care providers (HCPs) play a significant role in shaping attitudes towards people living with HIV/AIDS (PLWHA) and should possess adequate knowledge of this infection. The study aim was to assess knowledge about HIV among medical students of the University of Zagreb School of Medicine, and to determine the level of discriminatory attitudes towards PLWHA.MethodsWe assessed knowledge about epidemiology, treatment, and prevention of HIV by using closed-ended and multiple-choice questions. Likert-scale questions were employed to determine attitudes towards PLWHA. Bivariate and multivariate ordinal logistic regression was used to assess correlates of certain discriminatory attitudes.Results561 medical students participated, with 46.7% attending preclinical courses. Overall, 42.1% of students think they received sufficient information on HIV/AIDS during elementary and high school education. Among clinical students, 42.6%, 20.8% and 11.8% estimated accurately transmission risk after a needle injury, unprotected vaginal, and anal intercourse, respectively. 66.8% of clinical students were aware that treatment can prevent AIDS, while 58.7% and 69.8% were familiar with the rationale of using pre-exposure (PrEP) and post-exposure prophylaxis (PEP). In the multivariate analysis, individuals lacking infectology course attendance (aOR = 1.45; CI: 1.00-2.09) and those unaware of transmission routes (aOR = 1.49; CI: 1.06-2.09) showed higher odds of advocating HIV status disclosure compared to those who did not yet attend an infectology course. Students supporting extra protection for handling PLWHA bodily fluids were more likely to support refusal to treat PLWHA (aOR = 1.80; CI: 1.22-2.69) compared to those who did not support that opinion. Males were more inclined to state that they would refuse to treat PLWHA (aOR = 1.66; CI: 1.11-2.50) and disclose their HIV status (aOR = 1.62; CI: 1.17-2.27) than females. Overestimating needle injury transmission risk raised treatment refusal likelihood (aOR = 2.22; CI = 1.29-3.92) compared to those accurately informed of this risk.ConclusionResults indicate lack of knowledge of HIV transmission risks after specific exposures and about PrEP, PEP and treatment effectiveness. Gender and knowledge about HIV transmission risks influence students' attitudes towards PLWHA. Medical education should be focused on fostering correct attitudes and addressing stigma, which undermines prevention and treatment outcomes of PLWHA.

Dataset Information

Sources and geographic origin of particulate matter in urban areas of the Danube macro-region: The cases of Zagreb (Croatia), Budapest (Hungary) and Sofia (Bulgaria).

Publications

Sources and geographic origin of particulate matter in urban areas of the Danube macro-region: The cases of Zagreb (Croatia), Budapest (Hungary) and Sofia (Bulgaria).

Similar Datasets

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