Reactive uptake of glyoxal by particulate matter

Health impact assessment of particulate matter in Sanandaj, Kurdistan, Iran

Air pollution is a major environmental issue in all regions of the world. We aimed to assess the health impacts of particulate matter with an aerodynamic diameter  10 µm (PM10) in Sanandaj, Kurdistan, Iran. The air pollution data were obtained from Sanandaj Department of Environment Protection. The annual mortality and morbidity, including cardiovascular and respiratory diseases attributable to...

Design of an Inhalation Chamber to Expose Laboratory Animals with Suspended Particulate Matter by Numerical Simulation Method

Introduction: Usually, in the toxicological studies of airborne particulate pollutants, inhalation exposure chambers are used for providing and distributing the test atmosphere uniformly and stability in the respiratory zone of laboratory animals. The purpose of this study was to design, evaluate and optimize a whole-body exposure chamber, specifically for small laboratory animals exposed to pa...

The nature of particulate matter.

The origin and the nature of particulate matter which is found in the earth's atmosphere, and which is measured to evaluate air pollution, are discussed. The importance of defining particulate matter in terms of its physical structure and its chemical composition is emphasized. Attention is drawn to the surface activity of particulate matter and it is shown that, because of its micropore fine s...

Development of a Knudsen Cell Reactor for Measuring the Uptake of Atmospheric Gases on Particulate Matter

Uptake and Transfer of Particulate Matter from the Peritoneal Cavity of the Rat

1. Colloidal mercuric sulfide or thorium dioxide injected intraperitoneally passes into the cytoplasm of the mesothelium of the mesentery and of the diaphragm as early as 15 to 30 minutes after the injection. 2. Between 15 minutes and 12(1/2) hours the number of particles within the mesothelial cells increases as the time between injection and termination of the experiment is lengthened. 3. The...