These are the most frequently used words in this book.
1998
2000
accident
affect
age
air
al
animals
area
assessment
average
between
blood
canal
chemicals
child
children
conclusion
data
decision
development
differences
different
dose
during
effects
environmental
epa
error
et
even
evidence
exposed
exposure
family
fish
food
found
government
health
hearing
high
higher
home
human
important
iq
issues
lead
levels
lower
may
mercury
mothers
negative
new
noise
paint
part
pcbs
people
pesticides
poisoning
pollutants
pollution
problems
public
radiation
reading
related
report
research
researchers
residents
results
risk
sample
school
scientific
scientists
scores
scourge
see
should
showed
shows
silent
sources
states
study
test
time
toxic
two
united
use
used
variables
whether
years