{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:52:50Z","timestamp":1760237570807,"version":"build-2065373602"},"reference-count":43,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2020,6,5]],"date-time":"2020-06-05T00:00:00Z","timestamp":1591315200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"FEDER\/Ministerio de Ciencia, Innovaci\u00f3n y Universidades-Agencia Estatal de Investigaci\u00f3n","award":["TEC2017-86110-R"],"award-info":[{"award-number":["TEC2017-86110-R"]}]},{"DOI":"10.13039\/501100008425","name":"Conseller\u00eda de Cultura, Educaci\u00f3n e Ordenaci\u00f3n Universitaria, Xunta de Galicia","doi-asserted-by":"publisher","award":["ED481\/008"],"award-info":[{"award-number":["ED481\/008"]}],"id":[{"id":"10.13039\/501100008425","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this work, the application of a technique for monitoring changes of the dielectric constant of the atmosphere caused by the presence of pollution is discussed. The method is based on changes in the reflection coefficient of the device induced by these dielectric constant variations of the surrounding medium. To that end, several Yagi\u2013Uda-like antenna designs with different size limitations were simulated by using a Method-of-Moments software and optimized by means of a simulated annealing strategy. It has been found that the larger the optimal elements of the array are allowed to be, the higher the sensitivity reached. Thus, in a trade-off between sensitivity and moderate length (regarding flexibility purposes), the most promising solution has been built. This prototype has been experimentally tested in presence of an artificial aerosol made of PAO (polyalphaolefin) oil and black carbon inclusions of a size of 0.2 \u03bcm. As a result, potentials for developing a measurement procedure by means of changes in the characteristic parameters of the antenna led by different concentration levels of suspended particles in the surrounding medium are shown. In this manner, a local mapping of polluted levels could be developed in an easy, real-time, and flexible procedure.<\/jats:p>","DOI":"10.3390\/s20113225","type":"journal-article","created":{"date-parts":[[2020,6,9]],"date-time":"2020-06-09T05:16:14Z","timestamp":1591679774000},"page":"3225","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Feasibility Study on Measuring the Particulate Matter Level in the Atmosphere by Means of Yagi\u2013Uda-Like Antennas"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3408-3938","authenticated-orcid":false,"given":"Aar\u00f3n A.","family":"Salas-S\u00e1nchez","sequence":"first","affiliation":[{"name":"CRETUS Institute, Department of Applied Physics, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain"},{"name":"ELEDIA@UniTN, Department of Information Engineering and Computer Science, University of Trento, 38123 Trento, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julian","family":"Rauch","sequence":"additional","affiliation":[{"name":"CRETUS Institute, Department of Applied Physics, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9322-1229","authenticated-orcid":false,"given":"M. Elena","family":"L\u00f3pez-Mart\u00edn","sequence":"additional","affiliation":[{"name":"CRETUS Institute, Department of Morphological Sciences, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. Antonio","family":"Rodr\u00edguez-Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"CRETUS Institute, Department of Applied Physics, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giorgio","family":"Franceschetti","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering and Information Technology (DIETI), Universit\u00e0 di Napoli Federico II, 80131 Naples, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5651-8883","authenticated-orcid":false,"given":"Francisco J.","family":"Ares-Pena","sequence":"additional","affiliation":[{"name":"CRETUS Institute, Department of Applied Physics, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,6,5]]},"reference":[{"key":"ref_1","unstructured":"European Environment Agency (2020, May 07). Air Quality in Europe\u20142018 Report. Available online: https:\/\/www.eea.europa.eu\/\/publications\/air-quality-in-europe-2018."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"732","DOI":"10.1016\/S0140-6736(10)62296-9","article-title":"Public health importance of triggers of myocardial infarction: A comparative risk assessment","volume":"377","author":"Nawrot","year":"2011","journal-title":"Lancet"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1186\/1743-8977-3-13","article-title":"Translocation and potential neurological effects of fine and ultrafine particles a critical update","volume":"3","author":"Peters","year":"2006","journal-title":"Part. Fibre Toxicol."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"117","DOI":"10.1016\/j.bandc.2008.04.008","article-title":"Air pollution, cognitive deficits and brain abnormalities: a pilot study with children and dogs","volume":"68","author":"Ontiveros","year":"2008","journal-title":"Brain Cogn."},{"key":"ref_5","unstructured":"International Agency for Research on Cancer (2020, June 04). Outdoor Air Pollution\u2014IARC Monographs on the Evaluation of Carcinogenic Risks to Humans Volume. Available online: https:\/\/publications.iarc.fr\/_publications\/media\/download\/4317\/b1f528f1fca20965a2b48a220f47447c1d94e6d1.pdf."},{"key":"ref_6","unstructured":"U.S. EPA (2020, June 04). Current Knowledge of Particulate Matter (pm) Continuous Emission Monitoring. U.S. Environmental Protection Agency, Washington, DC, EPA-454\/R-00-039, Available online: https:\/\/www3.epa.gov\/ttn\/emc\/cem\/pmcemsknowfinalrep.pdf."},{"key":"ref_7","unstructured":"U.S. EPA (2009, June 04). Integrated Science Assessment (ISA) for Particulate Matter (Final Report, 2019). U.S. Environmental Protection Agency, Washington, DC, EPA\/600\/R-19\/188, Available online: http:\/\/ofmpub.epa.gov\/eims\/eimscomm.getfile?p_download_id=539935."},{"key":"ref_8","first-page":"1327","article-title":"An Overview of Particulate Matter Measurement Instruments","volume":"2015","author":"Pinheiro","year":"2015","journal-title":"Atmosphere"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"781","DOI":"10.1021\/es0013935","article-title":"Time Resolved Characterization of Diesel Particulate Emissions. 1. Instruments for Particle Mass Measurements","volume":"35","author":"Arnott","year":"2001","journal-title":"Environ. Sci. Technol."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"158","DOI":"10.1080\/10962247.2019.1654036","article-title":"Laboratory and Field Evaluation of Real-time and Near Real-time PM2.5 Smoke Monitors","volume":"70","author":"Mehadi","year":"2020","journal-title":"J. Air Waste Manage. Assoc."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1080\/10473289.1997.10464430","article-title":"Methods for Real Time, in Situ Measurement of Aerosol Light Absorption","volume":"47","author":"Arnott","year":"1997","journal-title":"J. Air Waste Manag. Assoc."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"844","DOI":"10.1016\/j.jqsrt.2009.02.035","article-title":"Aerosol Light Absorption and its Measurement: A Review","volume":"110","author":"Chakrabarty","year":"2009","journal-title":"J. Quant. Spectrosc. Radiat. Transf."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1016\/0960-1686(93)90104-7","article-title":"Atmospheric Light Absorption\u2014A Review","volume":"27A","author":"Horvath","year":"1993","journal-title":"Atmos. Environ."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S0034-4257(98)00031-5","article-title":"AERONET\u2014A Federated Instrument Network and Data Archive for Aerosol Characterization","volume":"66","author":"Holben","year":"1998","journal-title":"Remote Sens. Environ."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"12067","DOI":"10.1029\/2001JD900014","article-title":"An emerging ground based aerosol climatology: Aerosol optical depth from AERONET","volume":"106","author":"Holben","year":"2001","journal-title":"J. Geophys. Res."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"345","DOI":"10.1016\/j.atmosenv.2016.08.070","article-title":"Evaluation of MODIS Columnar Aerosol Retrievals Using AERONET in Semi-Arid Nevada and California, U.S.A. during the Summer of 2012","volume":"144","author":"Holmes","year":"2016","journal-title":"Atmos. Environ."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"2229","DOI":"10.1175\/1520-0477(1999)080<2229:RSOTAF>2.0.CO;2","article-title":"Remote Sensing of Tropospheric Aerosols from Space: Past, Present, and Future","volume":"80","author":"King","year":"1999","journal-title":"Bull. Amer. Meteor. Soc."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"215","DOI":"10.1038\/nature01091","article-title":"A Satellite View of Aerosols in the Climate System","volume":"419","author":"Kaufman","year":"2002","journal-title":"Nature"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"645","DOI":"10.3155\/1047-3289.59.6.645","article-title":"Remote Sensing of Particulate Pollution from Space: Have We Reached the Promised Land?","volume":"59","author":"Hoff","year":"2009","journal-title":"J. Air Waste Manage. Assoc."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"847","DOI":"10.1289\/ehp.0901623","article-title":"Global estimates of ambient fine particulate matter concentrations from satellite-based aerosol optical depth: Development and application","volume":"118","author":"Donkelaar","year":"2010","journal-title":"Environ. Health Perspect."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"5880","DOI":"10.1016\/j.atmosenv.2006.03.016","article-title":"Satellite remote sensing of particulate matter and air quality assessment over global cities","volume":"40","author":"Gupta","year":"2006","journal-title":"Atmos. Environ."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"1077","DOI":"10.3390\/rs2041077","article-title":"Monitoring automotive particulate matter emissions with lidar: A review","volume":"2","author":"Mazzoleni","year":"2010","journal-title":"Remote Sens."},{"key":"ref_23","unstructured":"Grusha, G.V. (2003, January 9\u201312). Antennas for the remote measurement systems of the gaseous pollution concentration. Proceedings of the 4th International Conference on Antenna Theory and Techniques, Sevastopol, Ukraine."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"97","DOI":"10.1038\/nphoton.2007.3","article-title":"Cutting-edge terahertz technology","volume":"1","author":"Tonouchi","year":"2007","journal-title":"Nat. Photonics"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1502","DOI":"10.1109\/LGRS.2016.2593976","article-title":"Technique for determination of particulate matter pollution in the atmosphere using waveguide slot linear array antennas: A feasibility study","volume":"13","year":"2016","journal-title":"IEEE Geosci. Remote Sens."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1386","DOI":"10.1109\/8.623128","article-title":"Design of Yagi-Uda antennas using genetic algorithms","volume":"45","author":"Jones","year":"1997","journal-title":"IEEE Trans. Antennas Propagat."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Elliott, R.S. (2003). Antenna Theory and Design, IEEE Press. [rev. ed.].","DOI":"10.1109\/9780470544174"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"961","DOI":"10.1109\/LGRS.2017.2690525","article-title":"Design of polyimide-coated Yagi-Uda antennas for monitoring the relative humidity level","volume":"14","year":"2017","journal-title":"IEEE Geosci. Remote Sens."},{"key":"ref_29","unstructured":"Pozar, D.M. (1998). Microwave Engineering, Wiley. [2nd ed.]."},{"key":"ref_30","unstructured":"Elliott, R.S. (1993). An Introduction to Guided Waves and Microwave Circuits, Prentice-Hall."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"1035","DOI":"10.1109\/JRPROC.1953.274297","article-title":"The constants in the equation for atmospheric refractive index at radio frequencies","volume":"41","author":"Smith","year":"1953","journal-title":"Proc. IRE"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"880","DOI":"10.1109\/TGRS.2002.1006369","article-title":"How strict are theoretical bounds for dielectric properties of mixtures?","volume":"40","author":"Sihvola","year":"2002","journal-title":"IEEE Trans. Geosci. Remote"},{"key":"ref_33","unstructured":"(2020, June 04). EM Software and Systems. Feko v2017.1. Available online: https:\/\/altairhyperworks.com\/product\/FEKO."},{"key":"ref_34","unstructured":"(2020, June 04). MathWorks, MATLAB, Version 2016b. Available online: https:\/\/www.mathworks.com\/products\/new_products\/release2016b.html."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"671","DOI":"10.1126\/science.220.4598.671","article-title":"Optimization by simulated annealing","volume":"220","author":"Kirkpatrick","year":"1983","journal-title":"Science"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"308","DOI":"10.1093\/comjnl\/7.4.308","article-title":"A simplex method for function minimization","volume":"7","author":"Nelder","year":"1965","journal-title":"Comput. J."},{"key":"ref_37","unstructured":"Press, W.H., Vetterling, W.T., Teukolsky, S.A., and Flannery, B.P. (1992). Numerical Recipes in C, Cambridge Univeristy Press. [2nd ed.]."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1007\/s00216-013-7402-3","article-title":"Characterizing Elemental, Equivalent Black, and Refractory Black Carbon Aerosol Particles: A Review of Techniques, Their Limitations and Uncertainties","volume":"406","author":"Lack","year":"2014","journal-title":"Anal. Bioanal. Chem."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"5380","DOI":"10.1002\/jgrd.50171","article-title":"Bounding the Role of Black Carbon in the Climate System: A Scientific Assessment","volume":"118","author":"Bond","year":"2013","journal-title":"J. Geophys. Res."},{"key":"ref_40","unstructured":"(2020, June 04). TSI Incorporated, Portable Test Aerosol Generator Model 3073. Available online: https:\/\/www.tsi.com\/getmedia\/e5d8a77a-7533-4631-a85a-470f11828a1c\/5002118_US_3073_Portable%20Test%20Aerosol%20Generator_Web?ext=.pdf."},{"key":"ref_41","doi-asserted-by":"crossref","unstructured":"Michel, R.P., Bacain, R., and Schubert, E. (1993, January 6\u20139). Soot particle properties in the microwave range. Proceedings of the 23rd European Microwave Conference, Madrid, Spain.","DOI":"10.1109\/EUMA.1993.336781"},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"880","DOI":"10.1029\/2005JD006678","article-title":"Inferring dust composition from wavelength dependent absorption in aerosol robotic network (aeronet) data","volume":"111","author":"Koven","year":"2006","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"79186","DOI":"10.1109\/ACCESS.2019.2923581","article-title":"Validation of Potential Effects on Human Health of in Vivo Experimental Models Studied in Rat Exposed to Sub-Thermal Radiofrequency. Possible Health Risks Due to the Interaction of Electromagnetic Pollution and Environmental Particles","volume":"7","year":"2019","journal-title":"IEEE Access"}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/20\/11\/3225\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T09:36:11Z","timestamp":1760175371000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/20\/11\/3225"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,6,5]]},"references-count":43,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2020,6]]}},"alternative-id":["s20113225"],"URL":"https:\/\/doi.org\/10.3390\/s20113225","relation":{},"ISSN":["1424-8220"],"issn-type":[{"type":"electronic","value":"1424-8220"}],"subject":[],"published":{"date-parts":[[2020,6,5]]}}}