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DEVELOPMENT OF AN AIR DISPERSION MODEL FOR COASTAL ZONES AND COMPLEX TERRAINS
Dispersion module calculates pollutant concentrations using ... Centreline pollutant concentrations for ground level emission under convective atmospheric boundary layer. Fig. 6 Normalized pollutant concentration for flow over a cone. Fig. 7 Normalized centreline pollutant ...
www.hku.hk


Prokas
PROKAS Intended field of application PROKAS is a model to calculate the air pollutant concentrations caused by a net of streets. Model type and dimension Emission model according ... dimensional statistics of wind speed, wind direction and atmospheric stratification) The model determines the concentrations (annual mean values and 98-percentils) of the air pollutants under consideration (incl. ...
www.lohmeyer.de


Air Dispersion Models for Odour Dispersion Modelling
Model (ISC3) is a steady-state Gaussian plume model which can be used to assess pollutant concentrations from wide variety of sources associated with an industrial complex. ISC3 models are especially designed ...
www.odour.unsw.edu.au


P & I Design Ltd
Telephone: +44 (0) 1642 617444 DISPERSE... The software is designed to predict the short term pollutant concentrations directly downwind (x direction) of an elevated point source at specified distances and as a ... the x direction is negligible with the bulk transport by the mean wind speed. The pollutant is a stable gas or aerosol which does not chemically react or settle out. The ...
www.pidesign.co.uk


Freshwater Website: Informational Resources and Services (Glossary)
A cumulative increase in the concentrations of a persistent substance in successively higher levels of the food chain. biota ... per million parts of water. This unit is commonly used to represent pollutant concentrations. Large concentrations are expressed in percentages. pathogenic microorganisms - Microorganisms that can cause ...
www.ec.gc.ca


Indoor Air Pollution
Research shows that some VOCs can cause chronic and acute health effects at high concentrations, and some are known carcinogens. Low to moderate levels of multiple VOCs may also ... and air movement, can provide a useful "snapshot" of current building conditions, sampling for specific pollutant concentrations is often not required to solve the problem and can even be misleading. Contaminant ...
ecolivingcenter.com


Glossary of Terms | Indoor Air | Air | US EPA
IEQ) refers to the quality of the air and environment inside buildings, based on pollutant concentrations and conditions that can affect the health, comfort and performance of occupants -- including ... dioxide, whose presence at certain concentrations may be used to estimate certain building conditions (e.g., airflow, presence of sources). INDOOR AIR POLLUTANT: Particles and dust, fibers, mists, ...
epa.gov


An Introduction to IAQ | Indoor Air Quality | Air | US EPA
High pollutant concentrations can remain in the air for long periods after some of these activities. ... understand which health effects occur after exposure to the average pollutant concentrations found in homes and which occurs from the higher concentrations that occur for short periods of time. Additional ...
epa.gov More from this site

MicroSepTec - Homeowners - Glossary of Terms
Performance requirements can be expressed as numeric limits (e.g., pollutant concentrations, mass loads, wet weather flows, structural strength) or narrative descriptions of desired performance, such as ...
microseptec.com


MicroSepTec - Realtors - Glossary of Terms
Performance requirements can be expressed as numeric limits (e.g., pollutant concentrations, mass loads, wet weather flows, structural strength) or narrative descriptions of desired performance, such as ...
microseptec.com More from this site



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