In Latin America and the Caribbean, more than 100 million people are exposed to higher levels of pollution than those recommended by WHO. The objective of the study is to determine the relationship between exposure to environmental pollutants and the prevalence and exacerbation of respiratory allergy. It is an observational, prospective, longitudinal and descriptive study that will include subjects older than 6 years who come to the consultation of the Regional Center for Allergy and Clinical Immunology with a diagnosis of respiratory allergy, positive skin tests and who live in Monterrey and its metropolitan area. After verbal assent, the subject's address and work area will be registered, the Rhinitis Control Assessment Test and the Asthma Control Test as well as spirometry will be made. The geolocation of industries and avenues near the address and work area of subjects will be carried out, as well as the determination of pollutants and pollens by the Integral Monitoring System (SIMA) and the Pollen Sense device. Subsequently, the correlation between exposure to pollutants and respiratory allergy will be analyzed. Dispersion models will be built considering pollutants and climatic factors (precipitation, wind speed, humidity and temperature). By carrying out this project, it will be possible to contribute to the identification of the factors that lead to the development and exacerbation of allergic respiratory diseases and subsequently propose the implementation of measures for their control and recommendations for prevention to the population.
Study Type
OBSERVATIONAL
Enrollment
93
Pollutants (ozone, SO3, NO3, PM2.5, diesel exhaust particles)
Regional Center of Allergy and Clinical Immunology, Hospital Universitario "Dr. José Eleuterio González"
Monterrey, Nuevo León, Mexico
RECRUITINGAssociation of respiratory symptoms with exposure to pollutants and pollen
To determine the relationship between exposure to environmental pollutants and the prevalence and exacerbation of respiratory allergy.
Time frame: 1 year
Avenues with highest diesel exhaust particles and traffic related particles
Locate the avenues with the highest flow and vehicular load releasing diesel removal particles (DEP) and traffic-related air pollutants (TRAP).
Time frame: 1 year
Location of the main industries that emit pollutants
Location of the main industries that emit pollutants of particulate matter (PM), nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO) and ozone (O3).
Time frame: 1 year
Distance of greater exposure to pollutants
To assess the relationship between the distance to PM, traffic-related air pollutants (TRAP) and diesel exhaust particles (DEP) with the prevalence of respiratory allergy symptoms with home and work address.
Time frame: 1 year
Time of pollutant exposure and association with respiratory symptoms
Evaluate the relationship between the time of exposure to PM, NO2, SO2, O3, traffic-related air pollutants (TRAP) and diesel exhaust particles (DEP) with the prevalence of respiratory allergy symptoms.
Time frame: 1 year
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