So, what do you think we want to protect
our groundwater from?
There are thousands of different contaminants which we don't want
in our water. A contaminant could be either biological (a disease-causing
organism or pathogen)
or chemical (like arsenic) which can cause harm to us or the environment if there
is too much of it in the groundwater.
We'll get to what "too much"
might mean later.
Contaminants are separated into three main categories:
- Inorganic chemicals
- Organic chemicals
Don't worry about what inorganic and organic mean. For now just
think of them as different categories that scientists use. Scientists
and engineers that deal with groundwater contaminants categorize
them to make it easier to remember certain information about each
Shown on the next page are some examples of different contaminants
and their affects on human health.