Publications by authors named "Francisco Javier Gomez-Moreno"

According to the World Health Organization (WHO), indoor air quality (IAQ) is becoming a serious global concern due to its significant impact on human health. However, not all relevant health parameters are currently regulated. For example, particle number concentration (PNC) and its associated carbonaceous species, such as black carbon (BC), which are classified as carcinogenic by the International Agency for Research on Cancer (IARC), are not currently regulated.

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This study presents a refined method that uses liquid chromatography with a fluorescence detector (LC-FD) to quantify trace amounts of dimethylamine in particulate matter (PM). This method was optimized to prioritize simplicity, cost-effectiveness and practicality. To ensure accurate and reliable analysis, strict protocols and procedures were followed to minimize cross-contamination.

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Article Synopsis
  • Monitoring indoor air quality (IAQ) in schools is essential as children spend significant time indoors, with traffic being a major contributor to air pollution, particularly in urban areas like south Madrid.
  • The study conducted measurements from November to December 2017, examining the relationship between indoor and outdoor pollutant levels, showing strong correlations and noting that indoor pollution is influenced by outdoor sources, especially regarding particulate matter and black carbon.
  • Findings revealed that indoor contaminant levels can rise during school occupancy due to activities and can fluctuate based on meteorological conditions, with specific trends noted regarding the delay in pollution levels between indoor and outdoor environments.
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Air pollution is one of the greatest environmental risks to health, causing millions of deaths and deleterious health effects worldwide, especially in urban areas where citizens are exposed to high ambient levels of pollutants, also influencing indoor air quality (IAQ). Many sources of indoor air are fairly obvious and well known, but the contribution of outside sources to indoor air still leads to significant uncertainties, in particular the influence that environmental variables have on outdoor/indoor pollutant exchange mechanisms. This is a critical aspect to consider in IAQ studies.

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  • Local high-pollution episodes in urban areas are largely driven by specific weather conditions and a mix of pollutants, raising concerns about their impact on health.
  • This study focused on Madrid from 2011-2014 to analyze how the mixing layer height (MLH) affects pollutant levels like NO, CO, and PM, along with daily mortality rates.
  • Results showed that lower MLH corresponded with higher pollutant concentrations and an increase in mortality, while higher MLH significantly reduced health risks, indicating a crucial link between weather patterns and air quality in cities.
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  • - The study investigated how different air mass origins affect particulate matter (PM) and the chemical composition of sulfur oxides (SO) and nitrogen oxides (NO) in Madrid's air from June 2009 to July 2011, using a cluster analysis of air mass back-trajectories.
  • - Five distinct clusters representing various air mass characteristics were identified, leading to insights on their impact on PM pollution levels at both regional and urban monitoring stations in Madrid.
  • - Key findings indicate that mineral desert dust significantly raises PM levels, while SO is linked to pollution from Southern Europe and the Mediterranean, and NO levels rise during low barometric gradient conditions, with pollution sources identified in northeastern Europe and North Africa.
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Exceedances of NO hourly limit value (200 μg·m) imply the need to implement short term action plans to avoid adverse effects on human health in urban areas. The Madrid City Council applied the stage 3 of the NO protocol during a high-pollution episode under stable meteorological conditions on December 2016 for the first time. This included road traffic access restrictions to the city centre (50% of conventional private vehicles based on plate numbers).

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