Date post: | 19-Jun-2015 |
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ENVIRONMENTAL HAZARDS
Angelie D. Mamon
Objectives
a. Define Hazard and Riskb. Identify the types/kinds of
environmemtal hazardsc. Discuss Risk Assessment and Risk
Managementd. Suggest ways to prevent
Environmental Hazards in the Philippines
Outline
a. Hazardb. Types of Environmental
Hazardsc. Risk Assessmentd. Risk Management
Hazard
A situation that poses a level of threat to life, health ,property, and environment. (Nebel & Wright,1993)
Most hazards are dormant, armed, active. (Wikipedia 2010)
Risk= hazard x vulnerability (– )capacity The likelihood or probability of an adverse
outcome or event. (http://www.env.gov.bc.ca/wld/documents/era.pdf)
Chemical Hazards
Harmful chemicals in the air water,food ,or soil‘ Toxic’: causes temporary or permanent harm or
death‘ Hazardous’: causes harm because it is
flammable,explosive, or irritates skin,lungs,causes allergies.
Mutagens: causes a mutation in DNA ; increases change for mistakes in the DNA to occur
Teratogens: harms,causes birth defects in fetus or embryo
Carcinogens- promotes cancer (www.greenet.com)
Biological Hazards
Pathogens, bacteria, viruses, parasites, etc.Non-transmissible disease: does not spread from
person to person .Ex. Ashma, cardiovascular problems, and malnutrition
Transmissible disease: also known as “infectious” a disease that can spread from person to person
Physical Hazards
Fire, earthquakes, tsunami, volcanic eruptions, floods, typhoons, etc.
Physical Hazards
GEOHAZARDS
• are geological phenomena that pose danger to people’s lives, properties, infrastructure and communities. These include landslides, flooding and land subsidence. However, in some cases, geohazards can also be induced by human activities.
• Geohazards cannot be totally prevented but their impact on people and the environment
may be lessened or mitigated. (www.denr.gov.ph)
GEOHAZARD MAPPING AND ASSESSMENT
Causes of Hazards
• Natural Hazards• Man-made Hazards• Deadly force or retribution
Risk Assessment
Scientific process of estimating the harm or danger a particular hazard can have on human health or environment
Identify it!Probability?
Consequence?
Development of Plans
• How to assess unknown hazards
• What do you already know about these drums?
Possible Scenarios
• As an emergency responder, unique exposures are possible
Risk Management
Making decisions to reduce the risk of a potential hazard.
Analyze: Is it worth it?
How much reduction?
Flammable Hazards
• Watch for Flammable Hazards
Let’s ponder on this…
References
Sat Dharam Kaur (n.d) Five Environmental Hazards retrieved July 3,2013 from Kandiri Yoga website: httpp.//3ho.org.
Propai Jaimun (2012,Jan.18) Global Warming Cartoon retrieved July 3,2013 from www.youtube.com/watch
Mr. 10orless(2012,Dec.3) Environmental Hazards retrived July 3,2013 from httpp.www.yuotube.com./watch?=nc/y
Bernard J. Nebel & Richard T. Wright,(1993)Environmental Science.New Jersey: Prentice Hall
Thank you!!!