Air Pollution Measurements

• Immission measurements (Ambient Air Monitoring)
– Concentration of the pollutants in the air the public breaths

• Emission Measurements (Stack Gas Monitoring)
– concentrations and/or emission rates from air pollution sources

General Ideas in Air Pollution Control

• Improve Dispersion
– Tall stacks
– Intermittent control schemes
– Relocate the plant

Particulate Matter PM Control Technologies - Summary

1- Cyclones
A cyclon can collect about 25 micron particles by using centrifugal force.
It has advantages for instance, it is easy to control and cheap.

2- Electro Static Precipitation
Electro Static Precipitation is used for to collect very fine particles. It has 99% efficiency.

3- Bag Filters
It is also very efficient method of PM Control.

4- Co-Flow Venturi Scrubbers
Venturi Sucrubbers have disadvantages. This method cause Water Pollution because of the main idea of washing gas with water.
If this method projected, the plant must have a waste water treatment plant