L24: Environmental Health Flashcards
Def of Environmental health
Current key environmental health issues
Current key environmental health issues
- Pollution of the air, water and soil
Current Key Environmental Health Issues
- Global Warming
Current Key Environmental Health Issues
- Overpopulation
Current Key Environmental Health Issues
- Waste Disposal in The Oceans
Current Key Environmental Health Issues
- Ocean Acidification
Current Key Environmental Health Issues
- Loss of Biodiversity
Current Key Environmental Health Issues
- Deforestation
Current Key Environmental Health Issues
- Ozone layer Depletion
Current Key Environmental Health Issues
- Acid Rain
Current Key Environmental Health Issues
- Lack of Clean Water
Effects of Global warming & Climate change
Causes of Global warming & Climate change
Solution of Global warming & Climate change
Significance of Biodiversity
Biodiversity helps maintain the balance of the ecosystem and provides biological resources which are crucial for our existence.
Solution of Loss of Biodiversity
Causes of Loss of Biodiversity
Def of Ocean acidification
is the ongoing decrease in the pH value of the Earth’s oceans
Causes of Ocean acidification
the uptake of carbon dioxide (CO2) from the atmosphere. The main cause of ocean acidification is the burning of fossil fuels.
Def of Deforestation
- Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use.
- Deforestation can involve conversion of forest land to farms, ranches, or urban use.
Deforestation can involve conversion of forest land to farms, ranches, or urban use.
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Def of Acid rain or acid deposition
- Is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms.
- This can include rain, snow, fog, hail or even dust that is acidic.
Def of Ozone layer depletion
ozone depletion, gradual thinning of Earth’s ozone layer in the upper atmosphere
Causes of Ozone layer depletion
- The release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities.
- More in the polar regions, especially over Antarctica .
Effects of Ozone layer depletion
Def of Water pollution
- Introduction of any matter that change physical, chemical and biological quality of water.
Where does Potable water (drinking water) Come From?
Water from natural sources is treated for microorganisms, bacteria, toxic chemicals, viruses and faecal matter through disinfection by …….
- Chlorination
- UV radiation
- Ozonation
- Pasteurization.
Def of Water desalination
Desalination is a process that takes away mineral components from saline water
- At the start of 2020 Egypt operated 58 desalination plants, with a combined capacity of 440,000 CU meters per day (cmd).
- A further 39 desalination plants are being developed under the guidance of the Ministry of Housing, Utilities & Urban Communities (MHUUC).
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Types of water pollutants
Effects of water pollution
Characteristics of water borne outbreaks or epidemics
Sustainable Development Goal 6
Def of Food safety
is how food is handled to prevent foodborne illness.
Def of Food sanitation
is the cleanliness of equipment and facilities.
Foods Causing Food contamination
Foods Causing Food contamination
- Chicken, Beef, Turkey
Campylobacter, Salmonella, Clostridium perfringens, E. coli, Yersinia
Foods Causing Food contamination
- Fruits & Veges
Salmonella, E. coli, and Listeria.
Foods Causing Food contamination
- Raw Milk
Campylobacter, Cryptosporidium, E.coli, Listeria, and Salmonella
Foods Causing Food contamination
- Eggs
Salmonella
Foods Causing Food contamination
- Oysters
Norovirus
Foods Causing Food contamination
- Sea Food
Salmonella and Vibrio vulnificus
Steps to food safety
Four Steps to Food Safety: Clean, Separate, Cook, Chill
Steps to food safety
- Clean
- Wash your hands for 20 seconds with soap and water before, during, and after preparing food and before eating.
- Wash your utensils, cutting boards, and countertops with hot, soapy water.
Steps to food safety
- Separate
- Don’t cross-contaminate.
-Raw meat, poultry, seafood, and eggs can spread
infection to ready-to-eat foods—unless you keep them separate.
Steps to food safety
- Cook
- To the right temperature.
- Food is safely cooked when the internal temperature gets high enough to kill harmful microorganisms.
- The only way to tell if food is safely cooked is to use a food thermometer.
Steps to food safety
- Chill
- Refrigerate promptly.
- Bacteria can multiply rapidly if left at room temperature or in the “Danger Zone” between 4 °C and 60°C.
Keep hot food at …. or hotter .
keep refrigerated foods at …. or colder.
keep frozen foods at ……. or colder
- 60°C
- 4°C
- 18° C
Def of Food Handler
- Food handler is any person who handles either food or surfaces that are likely to be in contact with food such as cutlery, plates and bowls
- They work at a place where food is cooked and served.
- They should obtain hepatitis A to be certified.
