environment and disease Flashcards
what is morbidity?
refers to ill health, includes any diseased state, disability or condition of poor health
what is mortality?
refers to deaths, it is the condition of being mortal or susceptible to death
summary of epidemiological transition…
infectious diseases are replaced by chronic diseases as the main cause of morbidity and mortality due to improved public health and sanitation
does the place where someone lives affect their life?
yes
lics/hics
environmental variables and the incidence of disease - climate
- drought leads to crop failure reduction in food security and famine
- flooding can lead to water borne diseases
- SAD - type of depression that has a seasonal pattern
- number of people in uk with respiratory issues has fallen due to improved air quality
- high conc of aluminium in water correlates w/ alz
environmental variables and the incidence of disease - topography FLAT LAND `
-LIC’s like Asia high densities of people live on flood plains
River Ganges
attracted to by flat land and seasonal flooding that allows them to grow rice
flooding = good but unplanned flooding accounts for 40% of deaths by natural disasters
what does flooding also lead to?
drownings
physical injuries
damage to homes
HIGH LAND
land slides
nepal suffers from land slides destroying hospitals, schools roads etc
environmental variables and the incidence of disease - natural hazards
hatti earthquake jan 2010
before - country lacked sewage systems half country lacked access to clean water 200,000 people HIV/AIDS
disease spread cholera - 2010-2014 8500 deaths cholera
uk air pollution is linked to how many deaths?
40,000 early deaths per year
distribution of deaths from air pollution
- indie and china -NEE- high due to wealth and industrialisation
- Australia = low due to strict emission laws
poor indoor air quality
roof leaks - bacterial growth dust mites animal hair household cleaners structural damp high humidity wood burning stoves
global pattern of deaths from indoor smoke
-india
-central and southern Africa
wood/gas stoves
outdoor air pollution
major environmental health problem with potential to affect everyone in both developed and developing
burning of fossil fuels
produces harmful poisons and gasses and long term exposure can cause respiratory problems
polluted air
this affects the respiratory and cardiovascular health of the population and is responsible for 37 mil premature deaths worldwide
2014 Dheli
dirtiest atmosphere out of 1600 cities worldwide
improving air quality
policies and investments that support cleaner transport power generation and efficient housing
what would happen if we reduced air pollution?
countries would reduce the burden of disease from stroke, lung cancer and respiratory diseases
will improving air quality be easier in developed or developing countries?
developed
- rich
- priority problem for developed whereas LICs are still battling communicable diseases
water pollution and poor water quality?
have important impacts on health and can lead to many diseases 2million deaths anually due to unsafe water, poor sanitation and hygiene
human sewage
- 1 of main causes of water pollution
toilets may be a hole in ground, same water may be used for drinking washing etc
2015 water aid
said 8 million people lived without safe water
