atopic eczema (ae) is a chronic inflammatory skin disease that affects children and adults, and alters quality of life with a high morbidity rate and severe economic burden. the objective of the present work was to analyse specific atmospheric pollutants (o3, no, pm10 and so2) affecting the prevalence of diagnosed ae and its symptoms among 6-7-year-old schoolchildren. the participants included ...

The air pollution problem has been serious in Delhi due to the rapidly expanding economic, industrial and vehicular developments. It has significant influences on atmospheric visibility, whose degradation dominates in urban areas. Increased air pollution in urban area may lead to the atmospheric reactions, resulting into the formation of secondary pollutants similar to cloud the condensation pr...

This paper introduces recent optical measurements of radicals in atmospheric pressure non-thermal plasma. Laser-induced fluorescence (LIF), laser absorption, and optical emission spectroscopy (OES) techniques have been applied for density and temperature measurements of OH radicals, NO molecules, ozone, atomic oxygen, atomic nitrogen, and N2( A3Σ u ) metastables in pulsed corona and pulsed diel...

Atmospheric pollution is mainly composed of volatile pollutants and particulate matter that strongly interact. However, their specific roles in the induction of cellular toxicity, in particular the impact of the vectorization of atmospheric pollutants by ultrafine particles, remains to be fully elucidated. For this purpose, non-toxic poly-lactic co-glycolic acid (PLGA) nanoparticles were synthe...

[1] We estimate the average time required for intercontinental transport of atmospheric tracers based on simulations with the global chemical tracer model MOZART-2 driven with NCEP meteorology. We represent the average transport time by a ratio of the concentration of two tracers with different lifetimes. We find that average transport times increase with tracer lifetimes. With tracers of 1and ...

R.R. Chianelli, M.J. Yácaman, J. Arenas, and F. Aldape Chemistry Department, Physical Sciences Building, University of Texas at El Paso, Texas, 79968-0513. Phone: (915)-747-7555, Fax: (915)-747-5748; Instituto de Física, Universidad Nacional Autónoma de México, Apdo. Postal20-364, Delegación Alvaro Obregón, 01000 México, D. F., México; and Instituto Nacional de Investigaciones Nucleares (ININ),...