Opacity
The amount of light obscured by particulate pollution in the air; clear window glass has zero opacity, a brick wall is 100 percent opaque. Opacity is an indicator of changes in performance of particulate control systems.
Open Burning ...
Opacity - A measure of light blocking by atmospheric particles. [Environmental Science and Technology; v37; 630-7; 2003.] [Environmental Science and Technology; v127; 2120-27; 2004.] ...
opacity 1) The state or quality of being opaque. 2) The amount of light obscured by particulate pollution in the air; clear window glass has zero opacity, a brick wall is 100 percent opaque.
Opacity: The amount of light obscured by particulate matter in the air.
Organic: 1. Any compound containing carbon. 2. Substances derived from living organisms.
OSHA: Occupational Safety and Health Administration.
Opacity: The amount of light obscured by particle pollution in the atmosphere. Opacity is used as an indicator of changes in performance of particulate control systems.
Continuous Opacity Monitoring Systems
Equipment used to sample and condition, analyze and provide permanent record of emissions or process parameters that reduce the transmission of light and obscure the view of a background object.
Continuous Sample ...
Equivalent Opacity - the application of the Ringelmann system to the evaluation of the density of other than black smoke (see Ringelmann) ...
opacity The degree of obscuration of light; for example, a glass window has almost 0% opacity, whereas a concrete wall has 100% opacity.
Ringlemann Chart: A series of shaded illustrations used to measure the opacity of air pollution emissions, ranging from light grey through black; used to set and enforce emissions standards.
 See also: Water, Organism, Emission, Environment, Hazard
  
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