Abstract. Improvements in air quality and Earth’s climate predictions require improvements of the aerosol speciation chemical transport models, using observational constraints. Aerosol (e.g., organic aerosols, black carbon, sulfate, nitrate, ammonium, dust or sea salt) is typically determined situ instrumentation. Continuous, routine surface network composition measurements are not uniformly wi...

introduction: the prevalence of allergic airway diseases has dramatically increased in recent years all over the world. murine models of allergic airway inflammation have provided helpful information about treatment and cellular and molecular mechanisms of the disease. previous published works using murine models to investigate latex allergy did not introduce a complete characteristic eosinophi...

The acceptability and pharmacology of intermittent aerosol administration of amantadine was assessed in healthy volunteers. Amantadine solutions of 2.5, 1.5, or 1.0 g/100 ml were used for 12 30-min, twice-daily aerosol treatments in 15 subjects. Overall, the aerosol treatments were well tolerated. During and up to 1 h after aerosol exposures, nasal irritation, rhinorrhea, dysgeusia, or a combin...

Aerosol detection and monitoring by satellite observations has been substantially developed over past decades. While several state-of-art aerosol retrieval techniques provide aerosol properties in global scale, the more detail characteristics remain unknown because most of the satellite sensors are limited to 1km resolution observations. However, a new aerosol retrieval algorithm for the Modera...

A new aerosol retrieval algorithm using multiangular total and polarized measurements is presented. The algorithm retrieves aerosol optical depth (AOD), fine-mode fraction (FMF) for studying the impact of aerosol on climate change. The retrieval algorithm is based on a lookup table (LUT) method, which assumes that one fine and one coarse lognormal aerosol modes can be combined with proper weigh...

This thesis presented analysis and results from long-term and short-term aerosol particle measurements of indoor-outdoor total particle number and size distributions in Helsinki. This thesis focused on the temporal–spatial variations of aerosol particle number size distributions, the factors (including local wind, ambient temperature, and traffic density) influencing the particle number size di...

Title of Dissertation: A STUDY OF REMOTELY SENSED AEROSOL PROPERTIES FROM GROUNDBASED SUN AND SKY SCANNING RADIOMETERS David M. Giles, Doctor of Philosophy, 2012 Directed By: Professor Russell R. Dickerson and Professor Anne M. Thompson, Department of Atmospheric and Oceanic Science Aerosol particles impact human health by degrading air quality and affect climate by heating or cooling the atmos...

Aliphatic amines can form secondary aerosol via oxidation with atmospheric radicals (e.g., hydroxyl radical and nitrate radical). The particle can contain both secondary organic aerosol (SOA) and inorganic salts. The ratio of organic to inorganic materials in the particulate phase influences aerosol hygroscopicity and cloud condensation nuclei (CCN) activity. SOA formed from trimethylamine (TMA...

A modest operational program of systematic aircraft measurements can resolve key satellite-aerosol-data-record limitations. Satellite observations provide frequent, global aerosol-amount maps, but offer only loose aerosol property constraints needed for climate and air quality applications. We define and illustrate the feasibility of flying an aircraft payload to measure key aerosol optical, mi...

Water can be a major component of aerosol particles, also serving as a medium for aqueous-phase reactions. In this study, a novel method is presented to calculate the aerosol liquid water content at high relative humidity based on measurements of aerosol hygroscopic growth factor, particle number size distribution and relative humidity in the Haze in China (HaChi) summer field campaign (July–Au...