✅3.2.3.7 - Other Contemporary Urban Environmental Issues Flashcards
What are some of the causes of water pollution?
Domestic waste Effluent from industries Leachates from landfill and dumping Rainwater Point sources (eg factories) Diffuse (non point) sources
What can be found in the River Mithi, Mumbai?
Untreated sewage, chemicals and disease causing microbes
What activities frequently take place on the banks of the River Mithi?
Illegal dumping of raw sewage
Industrial waste discharge
Washing vessels, animals and oily drums
Unauthorised discharge of hazardous waste eg zinc, lead
How has the River Mithi’s characteristics been affected by the pollution?
Its carrying capacity has been reduced and the pollution is a threat to marine life as well as water quality
What are the social impacts of water pollution?
Unpleasant
Disease
What are the economic impacts of water pollution?
Cost of treating the water
Knock on effects of trading eg fishing
What are the environmental impacts of water pollution?
Reduced capacity
Threat to marine life
Animals drinking from river in danger
What are the sources of water pollution in London?
Pollution form houses and agriculture Misconnections and wrong plumbing Appliances and dishwashers Soaps and chemicals Rain washing dirt from roads and car parks etc
What are the main causes of air pollution in Mumbai?
Industries in eastern suburbs and New Bombay
Rubbish incineration but the Brihanmumbai Municipal Corporation
Insufficient control over emissions from vehicles
What happened in Mumbai in 2010?
A chlorine gas leak from the Sewri industrial led to 76 people being treated in hospital
How large is the Municipal garbage dump?
100 hectares, with nightly burning of rubbish occurring
What are the particulate matter readings in Mumbai?
2000 microgrammes per cubic metre, safe limit 150
What are the social impacts of air pollution?
Cancer causing particulate matter
Bronchitis and asthma common
What are the economic impacts of air pollution?
Ill people not attending work
Gas leaks putting people in hospital gives company a bad name and compensation had to be paid
What are the environmental impacts of air pollution?
High carbon monoxide levels
Particulate matter significantly higher than safe limit
When was the Mumbai monorail opened?
2012
What was the aim of the monorail?
To reduce car usage in the city and lower emissions from exhausts, encourage public transport
How were people encouraged to use bikes as opposed to cars?
By taking part in the cyclothon in 2010, with over 7000 participants
How is industrial pollution being lowered in Mumbai?
Chimneys must be above a certain height so that particulates dispersed more easily by wind and must have filters to take out poisonous gases
How are industrial effluents being clamped down on in Mumbai?
The authorities began to close all unauthorised activities which discharge effluents into the river
How was rubbish collection changed?
A proper system was set up to prevent citizens dumping rubbish into the river
What were people employed to do?
Those without jobs were employed to keep the river clean
What will be installed on the banks of the River Mithi?
Sewers, and sewage treatment plants
What is going to be done to the river bed?
It will be dredged to improve its carrying capacity
