Fact Sheet 4

Health Benefits for Cleaner-Burning Gasoline

California's Air Pollution Problem


Almost one-half of all ozone-forming gases (ozone is a primary ingredient of smog),

Over 90 percent of bezene emissions, a substance known to cause cancer in humans, and

Over 90 percent of all carbon monoxide.

Who Gets Hurt by Air Pollution?



Cleaner-Burning Gasoline



How Cleaner-Burning Gasoline

Helps Protect Your Health

Cleaner-Burning

Gasoline

Your Health

Reduces

smog-forming

gases

Protects against lung

irritation and

disease

Reduces

emissions of

toxic

substances

Reduces

cancer

risk

Reduces

carbon

monoxide

Reduces risk

for people

with heart

disease and

other illnesses







How Cleaner-Burning Gasoline Reduces Air Pollution to Protect Your Health

Cleaner-Burning

Gasoline

Pollution Reductions

(Compared to 1994 summer gasoline)

Health

Benefits

Lower Reid vapor pressure

Lower aromatic hydrocarbon

and olefin content

Lower distillation

temperatures

Lower sulfur (also protects

vehicle catalysts)

Lower benzene content

Added oxygen*

Smog-forming gases

Volatile organic compounds

(17% -- 190 tons/day)

Nitrogen oxides

(11% -- 110 tons/day)

Protects against:

Breathing difficulties

Lung tissue damage

Aggravation of respiratory

diseases (such as bronchitis

and emphysema)

Cancer-causing pollutants

(benzene, 1,3-butadiene)

Reduces cancer risk from

gasoline vehicle emissions

by 30-40%

Added oxygen* Carbon monoxide

(11% -- 1300 tons/day)

Protects against:

Chest pain in heart patients.

Aggravation of chronic heart

or lung disease, or anemia.

Protects unborn children

Lower sulfur Sulfur dioxide

(80% -- 30 tons/day)

Protects against:

Lung diseases and other air

pollution-related diseases

* The most commonly used oxygenates are methyl tertiary butyl ether (MTBE), ethonal, and ethyl tertiary butyl either (ETBE). In California, MTBE is currently used in over 90 percent of all oxygenated gasoline.



Reducing Exposure to Gasoline Vapors