Publications by authors named "Ana Isabel Calvo"
Article Synopsis
- Fungal spores, particularly from the Alternaria genus, can cause respiratory issues, with the allergenic glycoprotein Alt a 1 being a major concern for those sensitive to fungi.
- The study aims to understand the factors affecting Alt a 1 levels in the atmosphere to improve risk assessments and forecasting models for exposure.
- Findings indicate that rising temperatures and absolute humidity increase Alt a 1 presence, while rain leads to lower allergen levels; predictive models showed a success rate of 67% to 85% for identifying high allergen days.
A one-year study was carried out in León, Spain, in order to characterize physically and chemically the precipitation. With the aim of studying the scavenging process of atmospheric pollutants, scavenging ratio and removal coefficients were calculated through physical parameters of raindrops (obtained by disdrometer data) and through chemical properties of aerosols. Finally, linear models for the prediction of the chemical composition of rainwater and the efficiency of the removal effect were established.
View Article and Find Full Text PDFCharacterization of aerosol sources in León (Spain) using Positive Matrix Factorization and weather types.
Sci Total Environ
February 2021
A one-year aerosol sampling campaign, between 2016 and 2017, was conducted in a suburban area of León city, Spain. An association between the Positive Matrix Factorization (PMF) results and air masses through circulation weather types was carried out, through the construction of linear models from the PM concentrations and its chemical composition. The aerosol sources, identified by PMF six-factor solution, were: traffic (29%), aged sea salt (26%), secondary aerosols (16%), dust (13%), marine aerosol (7%) and biomass burning (3%).
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