{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T15:59:27Z","timestamp":1780415967881,"version":"3.54.1"},"reference-count":39,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2024,11,26]],"date-time":"2024-11-26T00:00:00Z","timestamp":1732579200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Technical University of Construction of Bucharest, Romania","award":["CNFIS-FDI-2023-F-0613"],"award-info":[{"award-number":["CNFIS-FDI-2023-F-0613"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>This study presents a modern mobile laboratory to monitor outdoor air quality in Bucharest, Romania, with a focus on pollutants associated with transportation. Particulate matter (PM2.5, PM10), carbon monoxide (CO), ozone (O3), sulfur dioxide (SO2), nitrogen oxides (NO, NO2), and BTEX compounds (benzene, toluene, ethylbenzene, and xylenes) were among the significant pollutants that were examined in the lab. Meteorological variables such wind direction and speed, temperature, humidity, and solar radiation were also routinely observed in order to assess their influence on pollution levels. The study looked at two locations\u2014a bustling city road in Bucharest and a remote community 40 kmawayin Snagov\u2014under a range of weather conditions, including sunny, rainy, warm, and chilly days. The findings showed that the primary source of pollution in the urban area, which had significantly higher pollution levels than the rural site, was transportation. Particularly in the city, alarming concentrations of harmful particulate matter and carcinogens like benzene were found, underscoring the need for continuous air quality monitoring. The weather has a major impact on the dispersal of contaminants. Because of washout effects, rainy days decreased airborne pollutants, but sunny days showed higher pollution deposition. This study highlights the importance of outdoor air quality monitoring, particularly in urban environments, where traffic and weather have a significant impact on pollution levels. These findings provide crucial data that policymakers can utilize to implement targeted pollution control measures that protect human health.<\/jats:p>","DOI":"10.3390\/ijerph21121573","type":"journal-article","created":{"date-parts":[[2024,11,27]],"date-time":"2024-11-27T04:20:12Z","timestamp":1732681212000},"page":"1573","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Outdoor Pollution Comparison Between Bucharest and Its Outskirts Using Mobile Laboratory"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0297-9497","authenticated-orcid":false,"given":"Razvan Stefan","family":"Popescu","sequence":"first","affiliation":[{"name":"Buildings\u2019 Services Faculty, Technical University of Civil Engineering of Bucharest, 020396 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9474-0939","authenticated-orcid":false,"given":"Lelia Letitia","family":"Popescu","sequence":"additional","affiliation":[{"name":"Buildings\u2019 Services Faculty, Technical University of Civil Engineering of Bucharest, 020396 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9954-0781","authenticated-orcid":false,"given":"Tiberiu","family":"Catalina","sequence":"additional","affiliation":[{"name":"Buildings\u2019 Services Faculty, Technical University of Civil Engineering of Bucharest, 020396 Bucharest, Romania"},{"name":"National Research and Development Institute URBAN-INCERC, 021652 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,11,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"106","DOI":"10.1016\/j.envint.2005.05.020","article-title":"A review of traffic-related air pollution exposure assessment studies in the developing world","volume":"32","author":"Han","year":"2006","journal-title":"Environ. Int."},{"key":"ref_2","unstructured":"Health Effects Institute (2024, September 20). State of Global Air 2020: A Special Report on Globle Exposure to Air Pollution and Its Health Impacts. Available online: https:\/\/www.stateofglobalair.org\/resources\/archived\/state-global-air-report-2020."},{"key":"ref_3","unstructured":"Health Effects Institute (2024, September 20). State of Global Air 2021: Trusted Science for a Changing World. Available online: https:\/\/www.healtheffects.org\/system\/files\/hei-annual-report-2021.pdf."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"732","DOI":"10.3109\/10408444.2012.710194","article-title":"Potential hazards associated with combustion of bio-derived versus petroleum-derived diesel fuel","volume":"42","author":"Krahl","year":"2012","journal-title":"Crit. Rev. Toxicol."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"339","DOI":"10.1016\/S0140-6736(17)32643-0","article-title":"Respiratory and cardiovascular responses to walking down a traffic-polluted road compared with walking in a traffic-free area in participants aged 60 years and older with chronic lung or heart disease and age-matched healthy controls: A randomised, crossover study","volume":"391","author":"Sinharay","year":"2017","journal-title":"Lancet"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1016\/j.atmosenv.2015.12.053","article-title":"Observations of atmospheric monoaromatic hydrocarbons at urban, semi-urban and forest environments in the Amazon region","volume":"128","author":"Paralovo","year":"2016","journal-title":"Atmos. Environ."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"884","DOI":"10.4236\/jep.2017.88055","article-title":"Assessment of Air Pollution, by the Urban Traffic, in University Campus of Bucharest","volume":"8","author":"Popescu","year":"2017","journal-title":"J. Environ. Prot."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"434","DOI":"10.1016\/j.scitotenv.2018.10.214","article-title":"Physicochemical characterization and sources of the thoracic fraction of road dust in a Latin American megacity","volume":"652","author":"Amato","year":"2019","journal-title":"Sci. Total Environ."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"412","DOI":"10.1016\/j.uclim.2018.12.011","article-title":"Exposure to nanometric pollutants in primary schools: Environmental implications","volume":"27","author":"Rojas","year":"2019","journal-title":"Urban Clim."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"124776","DOI":"10.1016\/j.chemosphere.2019.124776","article-title":"Multiple hazardous elements in nanoparticulate matter from a Caribbean industrialized atmosphere","volume":"239","author":"Silva","year":"2020","journal-title":"Chemosphere"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"135306","DOI":"10.1016\/j.scitotenv.2019.135306","article-title":"Copper decreases associative learning and memory in Drosophila melanogaster","volume":"710","author":"Zamberlan","year":"2020","journal-title":"Sci. Total Environ."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1090","DOI":"10.1016\/j.scitotenv.2018.12.426","article-title":"A comprehensive study on spatio-temporal distribution, health risk assessment and ozone formation potential of BTEX emissions in ambient air of Delhi, India","volume":"659","author":"Garg","year":"2019","journal-title":"Sci. Total Environ."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"95","DOI":"10.1007\/s11869-015-0313-z","article-title":"Evaluation of seasonal variations in abundance of BTXE hydrocarbons and their ozone forming potential in ambient urban atmosphere of Dehradun (India)","volume":"9","author":"Bauri","year":"2016","journal-title":"Air Qual. Atmos. Health"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"289","DOI":"10.1007\/s10661-016-5278-3","article-title":"Role of carbonyls and aromatics in the formation of tropospheric ozone in Rio de Janeiro, Brazil","volume":"188","author":"Martins","year":"2016","journal-title":"Environ. Monit. Assess."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"146","DOI":"10.1016\/j.atmosenv.2015.06.019","article-title":"On-road emission characteristics of VOCs from light-duty gasoline vehicles in Beijing, China","volume":"124","author":"Cao","year":"2016","journal-title":"Atmos. Environ."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"375","DOI":"10.1016\/S0045-6535(02)00040-1","article-title":"Volatile organic compounds (VOCs) in urban atmosphere of Hong Kong","volume":"48","author":"Lee","year":"2002","journal-title":"Chemosphere"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"174","DOI":"10.1016\/j.envpol.2007.12.014","article-title":"Comparison of receptor models for source apportionment of volatile organic compounds in Beijing, China","volume":"156","author":"Song","year":"2008","journal-title":"Environ. Pollut."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"347","DOI":"10.1016\/j.scitotenv.2015.11.069","article-title":"Characteristics, source apportionment and reactivity of ambient volatile organic compounds at Dinghu Mountain in Guangdong Province, China","volume":"548\u2013549","author":"Wu","year":"2016","journal-title":"Sci. Total Environ."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"111745","DOI":"10.1016\/j.envres.2021.111745","article-title":"Level of air BTEX in urban, rural and industrial regions of Bandar Abbas, Iran; indoor-outdoor relationships and probabilistic health risk assessment","volume":"200","author":"Ghaffari","year":"2021","journal-title":"Environ. Res."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1093\/jnen\/63.1.1","article-title":"The Effects of Toluene on the Central Nervous System","volume":"63","author":"Filley","year":"2004","journal-title":"J. Neuropathol. Exp. Neurol."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1016\/j.envpol.2017.04.027","article-title":"Spatiotemporal description of BTEX volatile organic compounds in a middle eastern megacity: Tehran study of exposure prediction for environmental health research (tehran SEPEHR)","volume":"226","author":"Amini","year":"2017","journal-title":"Environ. Pollut."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"741","DOI":"10.1007\/s11869-021-00976-1","article-title":"Concentrations, sources, and health risk associated with exposure to BTEX at ten sites located in an urban-industrial area in the Bajio Region, Mexico","volume":"14","author":"Kahl","year":"2021","journal-title":"Air Qual. Atmos. Health"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"220","DOI":"10.1016\/j.apr.2017.09.005","article-title":"Trends of BTEX in the central urban area of Iran: A preliminary study of photochemical ozone pollution and health risk assessment","volume":"9","author":"Hajizadeh","year":"2018","journal-title":"Atmos. Pollut. Res."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1659","DOI":"10.1016\/j.scitotenv.2016.08.214","article-title":"Seasonal and diurnal variations of BTEX compounds in the semi-urban environment of Orleans, France","volume":"574","author":"Jiang","year":"2017","journal-title":"Sci. Total. Environ."},{"key":"ref_25","unstructured":"(2024, September 10). Available online: https:\/\/www.eurofinsus.com\/environment-testing\/services\/air-and-vapor."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"234","DOI":"10.1016\/j.scitotenv.2017.08.029","article-title":"Use of partial order in environmental pollution studies demonstrated by urban BTEX air pollution in 20 major cities worldwide","volume":"610\u2013611","author":"Carlsen","year":"2018","journal-title":"Sci. Total. Environ."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"e02918","DOI":"10.1016\/j.heliyon.2019.e02918","article-title":"Analysis of benzene air quality standards, monitoring methods and concentrations in indoor and outdoor environment","volume":"5","author":"Sekar","year":"2019","journal-title":"Heliyon"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"e2020GL088070","DOI":"10.1029\/2020GL088070","article-title":"The Response in Air Quality to the Reduction of Chinese Economic Activities During the COVID-19 Outbreak","volume":"47","author":"Shi","year":"2020","journal-title":"Geophys. Res. Lett."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"764","DOI":"10.1016\/j.crte.2007.08.007","article-title":"Air-quality measurements in megacities: Focus on gaseous organic and particulate pollutants and comparison between two contrasted cities, Paris and Beijing","volume":"339","author":"Gros","year":"2007","journal-title":"Comptes Rendus Geosci."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"554","DOI":"10.1016\/j.atmosenv.2006.08.051","article-title":"Ambient levels of volatile organic compounds in the atmosphere of Greater Cairo","volume":"41","author":"Khoder","year":"2006","journal-title":"Atmos. Environ."},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Popitanu, C., Cioca, G., Copolovici, L., Iosif, D., Munteanu, F.-D., and Copolovici, D. (2021). The Seasonality Impact of the BTEX Pollution on the Atmosphere of Arad City, Romania. Int. J. Environ. Res. Public Health, 18.","DOI":"10.3390\/ijerph18094858"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"601","DOI":"10.1016\/j.chemosphere.2016.07.088","article-title":"Investigation of outdoor BTEX: Concentration, variations, sources, spatial distribution, and risk assessment","volume":"163","author":"Miri","year":"2016","journal-title":"Chemosphere"},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Bret\u00f3n, J.G.C., Bret\u00f3n, R.M.C., Morales, S.M., Kahl, J.D.W., Guarnaccia, C., Severino, R.d.C.L., Marr\u00f3n, M.R., Lara, E.R., Fuentes, M.d.l.L.E., and Chi, M.P.U. (2020). Health Risk Assessment of the Levels of BTEX in Ambient Air of One Urban Site Located in Leon, Guanajuato, Mexico during Two Climatic Seasons. Atmosphere, 11.","DOI":"10.3390\/atmos11020165"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"489","DOI":"10.1007\/s11869-014-0247-x","article-title":"BTEX concentration levels in urban air in the area of the Tri-City agglomeration (Gdansk, Gdynia, Sopot), Poland","volume":"7","year":"2014","journal-title":"Air Qual. Atmos. Health"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"63","DOI":"10.1016\/j.scitotenv.2010.09.039","article-title":"Indoor and outdoor air concentrations of BTEX and determinants in a cohort of one-year old children in Valencia, Spain","volume":"409","author":"Esplugues","year":"2010","journal-title":"Sci. Total. Environ."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"306","DOI":"10.1016\/j.chemosphere.2010.07.033","article-title":"Assessment of the impact of the vehicular traffic on BTEX concentration in ring roads in urban areas of Bari (Italy)","volume":"81","author":"Caselli","year":"2010","journal-title":"Chemosphere"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"1922","DOI":"10.4209\/aaqr.2019.11.0574","article-title":"BTEX Exposure Assessment and Inhalation Health Risks to Traffic Policemen in the Klang Valley Region, Malaysia","volume":"20","author":"Fandi","year":"2020","journal-title":"Aerosol Air Qual. Res."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"557","DOI":"10.1016\/S1352-2310(96)00226-9","article-title":"Determination of aromatic hydrocarbons in urban air of Rome","volume":"31","author":"Brocco","year":"1997","journal-title":"Atmos. Environ."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"763","DOI":"10.4209\/aaqr.2011.03.0035","article-title":"Measurements and Correlations of MTBE and BETX in Traffic Tunnels","volume":"11","author":"Hsieh","year":"2011","journal-title":"Aerosol Air Qual. Res."}],"container-title":["International Journal of Environmental Research and Public Health"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1660-4601\/21\/12\/1573\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T16:40:10Z","timestamp":1760114410000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1660-4601\/21\/12\/1573"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,11,26]]},"references-count":39,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2024,12]]}},"alternative-id":["ijerph21121573"],"URL":"https:\/\/doi.org\/10.3390\/ijerph21121573","relation":{},"ISSN":["1660-4601"],"issn-type":[{"value":"1660-4601","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,11,26]]}}}