Essay about Human Environmental Hazards

859 Words 4 Pages
Physical hazards affect populations all over the world, regardless of wealth, location or other factors which tend to differentiate people and cultures from one another. Physical hazards in the environment are naturally occurring events and disasters with the capability of threatening physical safety. Hurricanes, volcanic eruptions, tornados, earthquakes, floods, and landslides are all different types of physical hazards that can have devastating effects on mankind (Library Index, Natural Hazard, 2011). There are primary and secondary effects to these physical hazards. Primary effects are a result of the event or disaster itself. For instance, flood waters damaging houses and buildings, or the collapse of structures due to an earthquake, …show more content…
Some die quickly without the protection of the body. Modes of transmission of some infectious agents are direct transmission through physical contact of an infected person to a non-infected person. Droplets from a cough or sneeze into mucous membranes of another person. In a medical setting, needle sticks are a mode of transmission, or inhaled by airborne transmission. Some infectious diseases or communicable diseases are cholera, tuberculosis, salmonella poisoning, hepatitis, measles, mumps, ringworm, and influenza. More dangerous biological hazards include anthrax, West Nile virus, malaria, Ebola, and typhus. The most simple and the best way to prevent illness are to reduce or eliminate exposure to biological agents. This can be done by simple hand washing, good personal hygiene. These infectious diseases can also be prevented through the use of personal protective wear, gloves and face shields and by taking care in handling of biohazard us materials and their disposal. The use of chemicals has increased due to the economic development in industry and agriculture. We are exposed to number of chemicals of both natural and man-made origin. Exposure occurs through absorption, inhalation, or by ingestion. These chemicals can be in aerosol, liquid, solid, or vaporous forms. You may notice immediate, acute effect from chemical exposure, along with chronic effects, a result of from long-term exposure. Low-level exposure to

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