reference : Air pollution and allergens

JSON YAML text HTML Turtle N-Triples JSON Triples RDF+XML RDF+JSON Graphviz SVG
Bibliographic fields
reftype Journal Article
Abstract It is well known that the prevalence of allergic diseases has increased in recent decades in the industrialized world. Exposure to environmental pollutants may partially account for this increased prevalence. In effect, air pollution is a growing public health problem. In Europe, the main source of air pollution due to particles in suspension is represented by motor vehicles--particularly those that use diesel fuel. Diesel exhaust particles (DEPs) are composed of a carbon core upon which high-molecular weight organic chemical components and heavy metals deposit. Over 80% of all DEPs are in the ultrafine particle range (< 0.1 pm in diameter). Air pollutants not only have a direct or indirect effect upon the individual, but also exert important actions upon aeroallergens. Pollen in heavily polluted zones can express a larger amount of proteins described as being allergenic. Through physical contact with the pollen particles, DEPs can disrupt the former, leading to the release of paucimicronic particles and transporting them by air--thus facilitating their penetration of the human airways. Climate change in part gives rise to variations in the temperature pattern characterizing the different seasons of the year. Thus, plants may vary their pollination calendar, advancing and prolonging their pollination period. In addition, in the presence of high CO2 concentrations and temperatures, plants increase their pollen output. Climate change may also lead to the extinction of species, and to the consolidation of non-native species--with the subsequent risk of allergic sensitization among the exposed human population. In conclusion, there is sufficient scientific evidence on the effect of air pollution upon allergens, increasing exposure to the latter, their concentration and/or biological allergenic activity.
Author Bartra, J.; Mullol, J.; del Cuvillo, A.; Davila, I.; Ferrer, M.; Jauregui, I.; Montoro, J.; Sastre, J.; Valero, A.
ISSN 1698-0808
Journal Journal of Investigational Allergology and Clinical Immunology
Keywords *Air Pollutants/immunology/toxicity; *Allergens/immunology; Ambrosia/immunology; Betula/immunology; Carbon Dioxide/toxicity; Greenhouse Effect; Humans; Lolium/immunology; Particulate Matter/immunology/toxicity; *Pollen; *Respiratory Hypersensitivity/epidemiology/immunology/prevention & control; Vehicle Emissions/toxicity
Notes Ch3,9
Pages 3-8
Title Air pollution and allergens
Volume 17 Suppl 2
Year 2007
Bibliographic identifiers
.reference_type 0
_chapter Ch3,9
_record_number 16478
_uuid d9f760b1-0caa-450c-a807-e65c2097c0fb