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News on Climate change, air pollution and allergic trigger factors of asthma

D'Amato M1, Cecchi L2, Annesi-Maesano I3, D'Amato G4

1First Division of Pneumology, High Speciality Hospital “V. Monaldi” and University “Federico II” Medical School, Napoli, Italy
2Interdepartmental Center of Bioclimatology, University of Florence (Italy).
3Epidemiology of Allergic and Respiratory DIseases Department, IPLESP, INSERM & UPMC Paris6, Sorbonnes Universités, Medical School Saint-Antoine, Paris (France).
4Division of Respiratory and Allergic Diseases; Department of Respiratory Diseases; High Specialty Hospital A.Cardarelli Napoli Italy; University of Napoli Federico II. School of Specialization in Respiratory Diseases 

J Investig Allergol Clin Immunol 2018; Vol. 28(2)
doi: 10.18176/jiaci.0228

The rising frequency of obstructive respiratory diseases,in particular allergic asthma, observed over the last years, can be partially explained by changes occurring in the environment, with increasing presence in atmosphere of chemical (particulate matter and gaseous components such as nitrogen dioxide and ozone) and biologic (aeroallergens) trigger factors. Aeroallergens are able to stimulate, in allergic subjects, the airways’ sensitization, inducing symptoms of bronchial asthma.
Over the last 50 years, global earth’s temperature has markedly risen likely because of growing emission of anthropogenic greenhouse gas concentrations. Major changes involving the atmosphere and the climate, including global warming induced by human activity, have a major impact on the biosphere and human environment.
Urbanization and high levels of vehicle emissions induce symptoms of bronchial obstruction (in particular bronchial asthma) prevalently in people living in urban areas compared with those who live in rural areas. Measures of mitigation need to be applied for reducing future impacts of climate change and global warming on our planet, but until global emissions continue to rise, adaptation to the impacts of future climate variability are required.

Key words: Air pollution and obstructive respiratory diseases, Airways hyperreactivity in asthma, Air pollution and asthma, Climate change and asthma, Climate change and respiratory allergy, Thunderstorm asthma