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Gases, Volume 5, Issue 4

December 2025 - 8 articles

Cover Story: Urban air pollution remains one of the most critical challenges for public health and sustainable city planning. AERQ is a decision support system that integrates IoT sensor networks, high-performance computing, and advanced dispersion modeling to support near real-time air quality management. Using traffic-related pollutants as key indicators, AERQ combines continuous monitoring with the AERMOD model to simulate present conditions and future mitigation scenarios. Applied to the city of Cagliari, Italy, the system achieves fine spatial and temporal resolution while drastically reducing computational time, enabling multi-year scenario analysis within hours. Delivered through an intuitive web-based platform, AERQ bridges science, policy, and citizens, demonstrating how integrated digital infrastructures can transform air quality governance into a proactive, data-driven process. View this paper
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Articles (8)

  • Article
  • Open Access
134 Views
31 Pages

16 December 2025

Global carbon emissions are driving the maritime industry toward cleaner fuels, with LNG already established as a transitional option that reduces SOx, NOx, and particulate emissions relative to conventional marine fuels and in line with decarbonisat...

  • Article
  • Open Access
467 Views
19 Pages

28 November 2025

The aim of this study is to generate density and viscosity data for carbon capture utilization and storage (CCUS) mixtures using equilibrium molecular dynamics (EMD) simulations. Binary CO2 mixtures with SO2 and H2S impurities at mole fractions of 0....

  • Project Report
  • Open Access
239 Views
8 Pages

24 November 2025

The demand for heavy-duty 5% (HD5) propane is expected to increase in the future due to the use of the gas as a fuel for engines. A refinery produces HD10 propane, and it is looking to upgrade to HD5 propane using either the conventional process (dis...

  • Article
  • Open Access
591 Views
23 Pages

20 November 2025

Large-scale underground hydrogen storage in saline aquifers requires an understanding of hydrogen–brine two-phase flow properties, particularly relative permeability, which influences reservoir injectivity and hydrogen recovery. However, such h...

  • Article
  • Open Access
437 Views
22 Pages

AERQ: Leveraging IoT and HPC for Urban Air Quality Monitoring

  • Guido Satta,
  • Pierluigi Cau,
  • Davide Muroni,
  • Carlo Milesi and
  • Carlino Casari

17 November 2025

Emerging technologies such as the Internet of Things (IoT), big data, mobile devices, high-performance computing, and advanced modeling are reshaping urban management. When integrated with conventional tools, these innovations enable smarter governan...

  • Article
  • Open Access
1,479 Views
23 Pages

Evaluating Concentrations of PM10, PM2.5, SO2, NO2, CO, O3, and H2S Emitted by Artisanal Brick Kilns in Juliaca, Peru, Using a Low-Cost Sensor Network and AERMOD Model

  • José Luis Pineda-Tapia,
  • Edwin Huayhua-Huamaní,
  • Milton Edward Humpiri-Flores,
  • Kevin Fidel Quispe-Monroy,
  • Deyna Lozano-Ccopa,
  • Robinson Chaiña-Sucasaca,
  • Milagros Lupe Salas-Huahuachampi,
  • Dennis Enrique Mamani-Vilca and
  • Cristian Abraham Cutipa-Flores

31 October 2025

The aim of this study was to rigorously quantify and analyse the concentrations of atmospheric pollutants (PM10, PM2.5, SO2, NO2, CO, H2S, and O3) emitted by artisanal brick kilns in Juliaca City, Peru. The AERMOD dispersion model and a network of lo...

  • Review
  • Open Access
1,845 Views
28 Pages

Experimental and Molecular Dynamics Simulation of Interfacial Tension Measurements in CO2–Brine/Oil Systems: A Literature Review

  • Nadieh Salehi,
  • Mohammad Kazemi,
  • Mohammad Amin Esmaeilbeig,
  • Abbas Helalizadeh and
  • Mehdi Bahari Moghaddam

16 October 2025

Carbon dioxide (CO2), a major greenhouse gas, contributes significantly to global warming and environmental degradation. Carbon Capture, Utilization, and Storage (CCUS) is a promising strategy to mitigate atmospheric CO2 levels. One widely applied ut...

  • Review
  • Open Access
2,316 Views
25 Pages

Review of Biomass Gasifiers: A Multi-Criteria Approach

  • Julián Cardona-Giraldo,
  • Laura C. G. Velandia,
  • Daniel Marin,
  • Alejandro Argel,
  • Samira García-Freites,
  • Marco Sanjuan,
  • David Acosta,
  • Adriana Aristizabal,
  • Santiago Builes and
  • Maria L. Botero

13 October 2025

Gasification of residual biomass has emerged as an efficient thermochemical conversion process, applicable to a wide range of uses, such as electricity generation; chemical manufacturing; and the production of liquid biofuels, BioSNG (biomass-based s...

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Gases - ISSN 2673-5628