A factory that emits contaminants may have to reduce or eliminate the loss of these materials because:
To do this they first have to determine what pollutants they emit. This is done by sampling the air and gases leaving the plant smoke stacks, the water leaving by the plant sewers and the solid wastes going to the disposal sites.
For each of the pollutants they then determine why it is being created and why it is being discharged. This is usually the work of engineers and chemists. In many cases the pollution they emit is actually valuable materials that can be recovered and sold. In other cases the pollution represents wastes of materials or energy that are costing the factory money.
For each pollutant there is a method of reduction. These include:
Owners and operators of inductral facilities can ensure the lowest possible pollution emission rates by:
shut down / stop the factories.
Things like cars, factories, waste, gas etc all cause pollution the government are finding a way to cut down on fuel and factories to stop pollution.
The clean air act, and stop small factories
For factories to not give off smoke or fumes into the air. ... hope that is what you wanted / needed
Those factories having boilers use coal as their fuel, cause thermal pollution.
factories
pollution
There's pollution because of factories and wind that blows pollution from China to Taiwan
The air pollution of factories is the number one pollution in the U.K.
Oil burning factories could stop the problem of carbon dioxide pollution, which is causing global warming by changing to renewable energy. This could be by simply changing to bio-fuel which will burn in their furnaces, or they could change to electricity produced from renewable sources like solar and wind.
coal factories
Chemical factories
the goverment cut down on factories opening times.