Exam #4 Flashcards
top 5 causes of death in the world
- heart attack
- stroke
- copd
- diahrrea
- lower respiratory inf
1 cause of death in canada
cancer
top 3 causes of death in india
- cardiovascular
- respiratory disease
- tuberculosis
top 3 causes of death in china
- malignant tumour
- heart disease
- cerebrovascular disease
how much death can we prevent from fixing the environment?
13 million
malaria most prevelant in which country?
africa
Environmental Toxins Common in Canada
Asbestos Carbon monoxide Radon Lead/Mercury Chemicals Mold Electrosmog Pesticides Air pollution Water quality Smoking and second hand smoke
what is Asbestos
Six different types of silicate crystals found naturally in the earth
what can asbestos cause?
When fine particles are inhaled causes serious and permanent respiratory problems such as lung cancer
radon gas is produced..
Produced naturally by radi0active decay of uranium in the ground
second highest cause for lung cancer is…
radon gas
what is carbon monoxide
Carbon monoxide (CO) is a gas that forms whenever you burn fuel like propane, natural gas, gasoline, oil, coal and wood
what is carbon monoxide poisoning doing to your body?
Carbon monoxide attaches itself inside blood cells to hemoglobin, the agent that helps carry oxygen. CO limits the ability of hemoglobin to take on oxygen and the brain, organs and other tissues become oxygen-starved.
what is BPA?
polycarbonate plastics (typically very hard, clear plastics, such as hard, reusable water bottles and children’s sippy cups). Recycle code 7
the resins that line food cans
some dental materials, such as sealants or composite fillings, which contain low amounts of BPA derivatives (BPA is only present in saliva for up to 3 hours after a dental procedure that uses sealants or composite fillings)
what does BPA disrupt?
- estrogen hormones
- affect sperm production
- affect fertility
- cause persistent changes in mammary gland (breast tissue) development
- Cause persistent changes in the prostate gland
insecticides are for..
insect control
herbicides are for…
weed control
fungicides are for..
for control of disease caused by fungus
rodenticides are for..
rodent control
fumigants are for…
a gas or vapour used to control insects
herbicides are class… and can cause…
class 2 (evidence to prove may be cancer causing)
what are Phthalates…
Phthalates are a group of chemicals that can make products (usually plastics) softer and more flexible. They are sometimes called plasticizers, though there are many other types of plasticizers too.
Phthalates are used in a range of products, including:
PVC (polyvinyl chloride) plastics (a specific type of plastic used in some products, such as shower curtains)
medical plastics, such as PVC IV bags and tubes
children’s toys and supplies
cosmetics, such as nail polish and perfumes
what is fracking?
a technique in which typically water is mixed with sand and chemicals, and the mixture is injected at high pressure into awell to create small fractures (typically less than 1mm), along which fluids such as gas and petroleum
Hydraulic pressure is removed from the well, then small grains of sand or aluminium oxide hold these fractures open once the rock achieves equilibrium.
what environmental concerns does fracking produce?
Each well requires approximately 5-8 million gallons of fresh water which is then polluted and cannot be cleaned
Ground water may now be exposed to carciongens and radioactive gas
Hydrogen sulfide gas is burned. This gas is known as sour gas and has shown to be related to CNS and respiratory health problems
Methane gas produced. This is second largest contributor to greenhouse gases
