How do power station try to stop harmful gases escaping?

Answer 1

Powerplants attempt to achieve 100% combustion to maximize energy production and minimize waste gas formation. They do this by monitoring the coal to air ratios and using special burners. They also inject gases like SO3 (tiny amounts) into the combustion chamber or flue gas to improve the operation of the Electrostatic precipitator.

The bottom line is that instead of preventing the gases from escaping the powerplants try to prevent them from ever forming.

Answer 2

Power stations try to stop harmful gases from escaping by using pollution control technologies such as scrubbers, filters, and catalytic converters to trap and reduce pollutants. They also monitor emissions regularly to ensure compliance with regulations and may use strategies like switching to cleaner fuels or implementing energy efficiency measures to minimize emissions.