Urban drainage Flashcards
1
Q
What issues are there with urban catchment?
A
- Pollution
- Flooding
- River Altered
2
Q
What is the issue with pollution?
A
- Fumes, dirt and. Oil
Washed into drains from pavement
3
Q
What is the issue with flooding?
A
- Drains blocked (Litter, plants)
- quick rainfall
- flash floods
4
Q
What. Is the issue with river altering ?
A
- too efficient
- quick flow because its straight
5
Q
What are some strategies to deal with the issues?
A
- flood walls and embankments
- afforestation
- river straightening
6
Q
What in London causes issues with drainage?
A
- high population = high level of sewage = overflow
- industry discharge chemicals
- surface runoff = impermeable surfaces
7
Q
What strategies are in London to deal with the issues?
A
- UK Laws = stop untreated sewage and waste from river
- London authority = collect rubbish inn huge boats
- Thames 21 charity == volunteers collect rubbish
8
Q
What in Mumbai causes issues with drainage?
A
- waste dumped in streets = into river
- raw sewage on streets due tho high pop
- surface runoff = impermeable surfaces
- plastic blown into river
9
Q
What strategies are in Mumbai to del with the issues?
A
- volunteer = collect rubbish educate community
- plants planted near river
- government payed for rubbish to be collected
