| Health Effects of Power Plant Pollutants |
| Pollutant | What is it? | How is it produced? | Health effects | Most vulnerable populations |
Ozone | Ozone is a highly
corrosive, invisible gas. |
Ozone is formed when
nitrogen oxides (NOx)
react with other pollutants in the presence of
sunlight. |
Rapid shallow breathing,
airway irritation, coughing, wheezing, shortness
of breath. Makes asthma worse.May be related to premature birth,
cardiac birth defects, low birth weight and stunted lung growth. |
Children, elderly, people with asthma or
other respiratory disease.People who
exercise outdoors. |
Sulfur Dioxide
(SO2) |
SO2 is a highly corrosive,invisible gas.
Sulfur occurs naturally
in coal. |
SO2 is formed in the
gases when coal is
burned. SO2 reacts in
the air to form sulfuric
acid,sulfates,and in
combination with NOx,
acidic particles. |
Coughing,wheezing,
shortness of breath,
nasal congestion and
inflammation. Makes
asthma worse. SO2
gas can destabilize
heart rhythms.Low
birth weight,increased
risk of infant death. |
Children and adults
with asthma or other
respiratory disease. |
Particulate Matter
(PM) |
A mixture of small solid
particles (soot)and tiny
sulfuric acid droplets.
Small particles are
complex and harmful
mixtures of sulfur,
nitrogen,carbon,acids,
metals and airborne
toxics . |
Directly emitted from
coal burning.Formed
from SO2 and NOx in
the atmosphere . |
PM crosses from the lung
into the blood stream
resulting in inflammation of
the cardiac system,a root
cause of cardiac disease
including heart attack and
stroke leading to premature
death.PM exposure is also
linked to low birth weight,
premature birth,chronic airway obstruction and
remodeling,and sudden
infant death. |
Elderly,children,
people with asthma . |
Nitrogen Oxides
(NOx) |
A family of chemical
compounds including
nitrogen oxide and
nitrogen dioxide.
Nitrogen occurs naturally in coal. |
NOx is formed when
coal is burned.In the
atmosphere can convert to nitrates and
form fine acidic particles. Reacts in the
presence of sunlight to
form ozone smog. |
NOx decreases lung
function and is associated with respiratory
disease in children.
Converts to ozone and
acidic PM particles in
the atmosphere . |
Elderly, children,
people with asthma. |
Mercury |
A metal that occurs
naturally in coal. |
Mercury is released
when coal is burned. |
Developmental effects in
babies that are born to mothers who ate contaminated
fish while pregnant. Poor
performance on tests of the
nervous system and learning. In adults may affect
blood pressure regulation
and heart rate. |
Fetuses and children are
directly at risk. Pregnant
women, children and
women of childbearing
age need to avoid
mercury exposure. |
Carbon Dioxide |
Coal has the highest
carbon content of any
fossil fuel. |
Carbon dioxide is
formed when coal is
burned. |
Indirect health effects
may be associated with
climate change including
the spread of infectious
disease, higher atmospheric ozone levels and
increased heat and coldrelated illnesses. |
People of Color,
children, people with
asthma. |