Climate change, air pollution, pollen allergy and extreme atmospheric events.

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Gennaro D'Amato, Maria D'Amato

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Gennaro D'Amato: Division of Respiratory and Allergic Diseases, Department of Chest Diseases, High Specialty A. Cardarelli Hospital, Napoli, Italy and Medical School of Specialization in Respiratory Diseases, University of Naples Federico II.
Maria D'Amato: First Division of Pneumology, High Specialty Hospital 'V. Monaldi' and University 'Federico II' Medical School Naples, Napoli, Italy.

PMID: 36917187 DOI: 10.1097/MOP.0000000000001237

PURPOSE OF REVIEW: Respiratory allergy correlates strictly with air pollution and climate change. Due to climate change, the atmospheric content of trigger factors such as pollens and moulds increase and induce rhinitis and asthma in sensitized patients with IgE-mediated allergic reactions.Pollen allergy is frequently used to evaluate the relationship between air pollution and allergic respiratory diseases. Pollen allergens trigger the release of immunomodulatory and pro-inflammatory mediators and accelerate the onset of sensitization to respiratory allergens in predisposed children and adults. Lightning storms during pollen seasons can exacerbate respiratory allergy and asthma not only in adults but also in children with pollinosis. In this study, we have focalized the trigger (chemical and biologic) factors of outdoor air pollution.
RECENT FINDINGS: Environmental pollution and climate change have harmful effects on human health, particularly on respiratory system, with frequent impact on social systems.Climate change is characterized by physic meteorological events inducing increase of production and emission of anthropogenic carbon dioxide (CO 2 ) into the atmosphere. Allergenic plants produce more pollen as a response to high atmospheric levels of CO 2 . Climate change also affects extreme atmospheric events such as heat waves, droughts, thunderstorms, floods, cyclones and hurricanes. These climate events, in particular thunderstorms during pollen seasons, can increase the intensity of asthma attacks in pollinosis patients.
SUMMARY: Climate change has important effects on the start and pathogenetic aspects of hypersensitivity of pollen allergy. Climate change causes an increase in the production of pollen and a change in the aspects increasing their allergenic properties. Through the effects of climate change, plant growth can be altered so that the new pollen produced are modified affecting more the human health. The need for public education and adoption of governmental measures to prevent environmental pollution and climate change are urgent. Efforts to reduce greenhouse gases, chemical and biologic contributors to air pollution are of critical importance. Extreme weather phenomena such as thunderstorms can trigger exacerbations of asthma attacks and need to be prevented with a correct information and therapy.

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Child

Humans

Rhinitis, Allergic, Seasonal

Climate Change

Air Pollution

Asthma

Hypersensitivity

Allergens

Biological Products

Allergens

Biological Products

Review Journal Article

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