ENVIRONMENTAL HAZARDS AND HUMAN HEALTH
Types of Hazards:
1. Biological Hazards
(Bacteria, Viruses, Parasites, Protozoa, Fungi)
2. Chemical Hazards
(Harmful chemicals in air, water, soil, food, and human -made products)
3. Natural Hazards
(Fire, earthquakes, volcanic eruptions, floods, and storms)
4. Cultural Hazards
(Unsafe working conditions, unsafe highways, criminal assault, and poverty)
5. Lifestyle Choices
(Smoking, making poor food choices, drinking too much alcohol, and
having unsafe sex)
Biological Hazard
-Some diseases can spread from one person to another
- An infectious disease is caused when a pathogen such as a bacterium, virus, or
parasite invades the body and multiplies in its cells and tissues. Tuberculosis, flu,
malaria, and measles.
- Bacteria are singe-cell organisms that are found everywhere. Most are harmless
or beneficial. A bacterial disease result from an infection as the bacteria multiply
and spread throughout the body.
