What is environmental health?
In its broadest sense, environmental health comprises those aspects of human health, disease and
injuries that are determined or influenced by factors in the environment. This includes the study of both
the direct pathologica
Contaminants in Drinking Water
EPA sets standards for approximately 90 contaminants (EPA stands for Environmental Perfection
Agency, CEPA means Canadian blah, blah, blah) This agency does a lot of work regarding many
different issues, the agency also sets
-Some areas have lots, but the largest rivers are far from agricultural and population centers
-Lots of precipitation arrives during short period but cannot be collected and stored
-Shrinking of lakes and rivers
How do we use the worlds fr
Indoor Air Pollution
-Hard to detect by our senses
-Symptoms are similar, need years to develop
-Headaches, tiredness, dizziness, nausea, itchy nose, scratchy throat, Cancer, asthma
-Group of six different fibrous minerals
-Have separable long st
6. Disinfection byproducts
Form when disinfectants react with naturally occurring organic and inorganic matter in water.
These chemicals are yield, and some of them are listed below:
Trihalomethanes- excess over many years cause liver, kidney, or central
2. Chemical body burdens
-Quantity of chemicals accumulated in the body
-Not stable over time
-Not distributed homogeneously in a body (liver has higher concentration)
-Not possible to detect if present in very low concentrations.
-Biomonitoring normal le
Chemical properties of radionuclide:
-each of these radionuclide has its own chemical properties
- Chemical properties determine where health effects occur
-for example. LEAD can be radioactive or can be regular lead. Iron is necessary for humans it is mi
-We can not escape radiation. Radiation is everywhere; watching tv, checking e-mail, typing, printing on
the computer radiation is there.
1. Background radiation- Something that is produced and emitted from outer space for example.
Something that we can a
Mercury (Hg) (can exist as gas, liquid, and solid)
-Metallic form - in batteries, dental amalgams, thermometers
-In industry in different forms
-When in liquid form it is not a significant hazard, but it is when it starts evaporating in the air.
Some countries which permit the import of DDT
-Pesticides affect development of intelligence and motor skills of you