ATMOSPHERIC POLLUTANTS

What are the advantages of complete combustion

Less soot made

More heat per gram of fuel

Carbon Monoxide not produced

What are the 4 pollutants

Carbon Monoxide

Soot

Sulfur Dioxide

Nitrogen Oxides

What are the issues of sulfur dioxide and oxides of nitrogen

Respiratory problems in humans

Acid Rain: damages plants, buildings

How does acid rain damage plants

Landing directly on them

Making the soil too acidic

What problems do soots (particulates) cause

Form dark clouds which reflect sunlight back into space: Global Dimming

Health issues in humans **(lung damage)**

What issues does carbon monoxide cause

If inhaled it diffuses into blood, binds to haemoglobin, less oxygen carried, less oxygen transported around body

What three things can occur if carbon monoxide decreases the amount of oxygen being transferred

Coma

Fainting

Death

How is soot + carbon monoxide formed

incomplete combustion of hydrocarbons

How is sulfur dioxide formed

Burning hydrocarbons with sulfur, sulfur is oxidised into sulfur dioxide

How is nitrogen oxide formed

Oxygen and nitrogen from air react together

Why are nitrogen oxides rarely made

Reaction doesn’t usually happen because it requires really high temperatures

When can nitrogen oxides form

Internal combustion engines