Ind Rev Flashcards
Snow
In the 19th century
three key figures—Edwin Chadwick
- Chadwick studied how **poor sanitation
poverty
- In 1842
he published The Sanitary Conditions of the Labouring Population
- He pushed for **clean water
proper drainage
- His efforts led to the Public Health Act of 1848
which created local health boards to oversee sanitation.
- While some opposed his ideas
they later influenced large projects like Bazalgette’s sewer system.
- Snow
a doctor
- During the 1854 cholera outbreak
he mapped cases and traced the source to a contaminated water pump on Broad Street.
- He had the pump handle removed
stopping further infections and proving that cholera was spread through water.
- His book
On the Mode of Communication of Cholera
- His methods of tracking disease outbreaks laid the foundation for modern epidemiology.
- London’s poor sanitation led to frequent cholera outbreaks and the Great Stink of 1858
when the smell from the polluted Thames forced Parliament to act.
- Bazalgette designed a sewer system to remove waste and prevent contamination of drinking water.
- He built **1
100 miles of underground sewers**
- He planned for future population growth
ensuring that the system would work for generations.
- His design was so effective that parts of it are still in use today
setting a model for modern city sanitation systems.
- Chadwick showed that better sanitation could reduce disease and improve life expectancy.
- Snow proved that cholera spread through water and introduced methods still used in disease prevention.
- Bazalgette built an advanced sewer system that helped keep cities clean and safe.
Their work shaped public health policies
engineering