13.6 Improving Rio's environment

Question 1

How many deaths are caused by air pollution per year in Rio?

Answer 1

➢ 5000

Question 2

What are the causes of Air pollution in Rio?

Answer 2

➢ Heavy traffic and congestion on roads

➢ Mist from the Atlantic mixes with vehicle exhaust fumes and pollutants from factory chimneys

Question 3

What are the reasons for the increase in traffic congestion for Rio over the last 10 years?

Answer 3

➢ An increase in crime means that many people prefer to travel by car
➢ The proportion of the population has increased

Question 4

What are the solutions to reduce traffic congestion?

Answer 4

➢ Expansion of the metro system under the Guanabara Bay

➢ New toll roads into the city centre

Question 5

What are the sources of water pollution?

Answer 5

➢ 200 tonnes of raw sewage pours into the Guanabara Bay each day
➢ Over 50 tonnes of industrial waste enters the bay each day

Question 6

What are the solutions to water pollution?

Answer 6

➢ 5kms of new sewage pipes have been installed around the badly polluted areas
➢ 12 new sewage works have been built which has cost $68 million dollars

Question 7

What are the reasons for large amounts of waste to be near the favelas?

Answer 7

➢ Favelas are built on steep slopes with few proper roads.

➢ Makes it difficult for waste collection lorries to travel up

Question 8

What are the solutions to the problems caused by waste pollution?

Answer 8

➢ A power plant has been set up near the University of Rio using methane gas
➢ Consumes 30 tonnes of rubbish each day and produces enough electricity for 1000 homes