Human exposure to hazardous chemicals can occur at the source or the chemical could move to a place where people can come into contact with it. Chemicals can move through air soil and water.
Start studying Ch17 APES Enviromental hazards and human health.
What are the five major types of hazards to human health. There are four categories to human environmental hazards which we will discover and discuss further in detail and they consist of cultural hazards biological hazards physical hazards and chemical hazards Wright Boorse 2011. In hazard identification sources of data on the risks associated with prospective hazards are identified. Risk assessment the scientific process of estimating how much harm a particular hazard can cause to human health or the environment.
Risk is possibly suffering harm due to a hazard which in many cases it can cause an injury disease death economic loss or environmental damage. Learn vocabulary terms and more with flashcards games and other study tools. We first begin with Cultural Hazards.
Physical risks are fire weather and radiation. For example mould blood and. Environmental health hazards include traditional hazards of poor sanitation and shelter as well as agricultural and.
Chemical risks include harmful chemicals in the air water soil and consumed food. Biological risks include pathogens allergens and possible diseases spread from animals. Environmental health hazards like occupational health hazards may be biological chemical physical biomechanical or psychosocial in nature.
Threshold and non-threshold models of risk exist for various types of health conditions predominantly with respect to noninfectious hazards which adds controversy and complication to the risk assessment process NRC 1983. They can also be on plants or animals and can get into the air we breathe the food we eat and the water we drink. Biological hazards include viruses bacteria insects animals etc that can cause adverse health impacts.
For instance if a site is known to be contaminated with a variety of industrial pollutants hazard identification will determine which of these chemicals could result in adverse human health effects and what effects they could cause. Cultural risks include poor diet drug use poor driving and assault. The classification of health hazards resulting from occupational exposure is carried out according to the following six criteria.
Acute toxicity adverse effects resulting from acute intoxication adverse effects during chronic intoxication consequences of chronic intoxication carcinogenicity and MAC.