Publicacións

@article{zafra-mejia_analysis_2021,

title = {Analysis of Particulate Matter Concentration Intercepted by Trees of a Latin-American Megacity},

author = {Carlos Zafra-Mejía and Joaquín Suárez-López and Hugo Rondón-Quintana},

url = {https://www.mdpi.com/1999-4907/12/6/723},

doi = {10.3390/f12060723},

issn = {1999-4907},

year  = {2021},

date = {2021-06-01},

urldate = {2026-08-06},

journal = {Forests},

volume = {12},

number = {6},

pages = {723},

publisher = {Multidisciplinary Digital Publishing Institute},

abstract = {Urban areas with trees provide several ecosystem services to citizens. There is a growing interest in ecosystem services for the removal of air pollutants such as particulate matter. The objective of this paper is to show a study on the variation of intercepted particulate matter concentration (IPMC) by tree leaves in the megacity of Bogotá (Colombia). The relationship between IPMC and PM2.5 concentrations observed in air quality stations in two urban zones with different air pollutions was studied. Influences of climate and leaf morphology variables on IPMC were also analyzed. The species under study were Ligustrum-lucidum, Eucalyptus-ficifolia, Tecoma-stans, Callistemon-citrinus, Lafoensia-acuminata, and Quercus-humboldtii. The results showed that leaf IPMC decreased as the PM2.5 concentration increased. Species that best described this trend were Ligustrum-lucidum and Lafoensia-acuminata. These two species also showed the largest IPMC in their leaves. Indeed, species that showed the largest leaf area were those with the highest IPMC. On average, it was observed that for each 5.0 µg/m3 increase in PM2.5 concentration the IPMCs of the species Ligustrum-lucidum and Lafoensia-acuminata decreased by 33.6% and 23.1%, respectively. When wind speed increased, there was also an increase in PM2.5 concentrations and a reduction in the leaf IPMCs.},

keywords = {Air Pollution, leaf morphology, particulate matter, PM$_{textrm{2.5}}$, urban trees},

pubstate = {published},

tppubtype = {article}

}

@article{Alvarellos2020,

title = {Developing a secure low-cost radon monitoring system},

author = {Alberto Alvarellos-González and Marcos Gestal and Julián Dorado and Juan R. Rabuñal-Dopico},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078903262&doi=10.3390%2fs20030752&partnerID=40&md5=37a4e893986d8e10605c71bd81697d44},

doi = {10.3390/s20030752},

issn = {14248220},

year  = {2020},

date = {2020-01-01},

urldate = {2020-01-01},

journal = {Sensors (Switzerland)},

volume = {20},

number = {3},

publisher = {MDPI AG},

abstract = {Radon gas has been declared a human carcinogen by the United States Environmental Protection Agency (USEPA) and the International Agency for Research on Cancer (IARC). Several studies carried out in Spain highlighted the high radon concentrations in several regions, with Galicia (northwestern Spain) being one of the regions with the highest radon concentrations. The objective of this work was to create a safe and low-cost radon monitoring and alert system, based on open source technologies. To achieve this objective, the system uses devices, a collection of sensors with a processing unit and a communication module, and a backend, responsible for managing all the information, predicting radon levels and issuing alerts using open source technologies. Security is one of the largest challenges for the internet of things, and it is utterly important in the current scenario, given that high radon concentrations pose a health risk. For this reason, this work focuses on securing the entire end-to-end communication path to avoid data forging. The results of this work indicate that the development of a low-cost, yet secured, radon monitoring system is feasible, allowing one to create a network of sensors that can help mitigate the health hazards that high radon concentrations pose. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.},

note = {cited By 17},

keywords = {Air Pollution, Alert systems; End-to-End communication; International agency for research on cancers; IoT security; Open sources; Open-source technology; Radon monitoring; United states environmental protection agencies, Costs; Environmental Protection Agency; Health hazards; Health risks; International cooperation; Internet of things; Open systems; Radon; Risk perception, environmental exposure; environmental monitoring; human; indoor air pollution; isolation and purification; prevention and control; risk factor; Spain; United States, Indoor; Environmental Exposure; Environmental Monitoring; Humans; Radon; Risk Factors; Spain; United States, Monitoring, radon},

pubstate = {published},

tppubtype = {article}

}