THE WIND INFLUENCES OVER THE POLLUTION CONCENTRATION IN THE URBAN ENVIRONMENT IN THE CITY OF CLUJ NAPOCA
Abstract
Currently, 55% of the world's population lives in urban areas, a proportion that is expected to increase by 2050 to 68% (ec.europa.eu). Urban air quality continues to be an essential health issue, accompanied by the fact that one of the fundamental global sources of air pollution in the city is traffic emissions (Kumar et al., 2015). The purpose of this study is to highlight the effects on wind flows in an urban environment, especially on atmospheric pollutants. For this purpose, the main arteries of Cluj-Napoca were selected as a case study, Marasti -BRD, - Orthodox Cathedral- St. Michael's Church - Calea Motilor - Calea Manastur. These areas were chosen because they were monitored by different measuring instruments from several / various locations, which provided input data for the present study. Likewise, two situations were considered regarding the winds in the municipality of Cluj, from a seasonal point of view: summer and winter. Were distinguished 11 sectors on the west-east alignment, having specific characteristics, depending on the existing buildings and spaces. There were significant differences between the wind rose in the winter and the summer. This results leads to local air movements more pronounced than in winter period, having as an effect a quasi-constant state of pollution. As a result, it is necessary to "help" the improvement of air quality by planting a mix of arboreal species in these areas, which we call „oxygen fountains”.
Copyright (c) 2019 Horia CRIVEANU, Ana HORHAT, Anca HUSTI, Cosmin OANA, Dorin-George BOB, Camelia ȘCHEAU-MISIRIANTU

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The papers published in the journal are licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
Open Access Journal: The journal allow the author(s) to retain publishing rights without restrictions. Authors are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author.
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under the Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).