PROTECTION OF URBAN ATMOSPHERE FROM MOTOR VEHICLES EXHAUST GASES

Uptake of inhaled lead from motor exhaust.

To assess the contribution of lead in motor exhaust to the total uptake of lead it is necessary to know the amount deposited in the lungs, the uptake thence to blood and other tissues, and the rate of excretion from the body. There are reports of experiments in which volunteers have inhaled aerosols of lead oxide or sesquioxide (Kehoe, 1961; Hursh et al., 1969; Booker et al., 1969; Cole and Lyn...

Simulation of Dispersion of Polluted Gases in Atmosphere

A computer program was developed to predict the dispersion of gas pollutant in the atmosphere. This program relies on puff method, and in order to consider the wind shear effects, the program has the ability to consider the complete dynamic and unsteady atmospheric conditions. Plume rise of hot pollutants due to buoyancy effects was also considered. The program has the capacity to perform the r...

Simulation of Dispersion of Polluted Gases in Atmosphere

A computer program was developed to predict the dispersion of gas pollutant in the atmosphere. This program relies on puff method, and in order to consider the wind shear effects, the program has the ability to consider the complete dynamic and unsteady atmospheric conditions. Plume rise of hot pollutants due to buoyancy effects was also considered. The program has the capacity to perform the r...

Control of Exhaust Emissions from Internal Combustion Engined Vehicles

Options for Abating Greenhouse Gases from Exhaust Streams

This report examines different alternatives for replacing, treating, and recycling greenhouse gases. It is concluded that treatment (abatement) is the only viable short-term option. Three options for abatement that were tested for use in semiconductor facilities are reviewed, and their performance and costs compared. This study shows that effective abatement options are available to the photovo...