Chapter 13- Urban Enviro Management Flashcards
People live in urban places most in…
Latin America and Caribean
-number of people in urban areas has been increasing steadily
In Canada
-majority of the population live in urban areas and this number is increasing
Implications?
Air pollutants
Urban Heat Island Effect
Hydrological Cycle
Brownfield Sites
Air Pollutants
- CO, O3, particulates, NOx
- 25,000 deaths/yr from air pollution
- increases asthma and emphysema
- increase in smog advisory days
Urban Heat Effects
higher temperature in core urban areas than surrounding areas
- city centres can be 2-6 degrees higher than near by rural areas
- solution green roof technology would use less energy for air conditioning thus lower GHG
- light coloured surfaces
- use balanced geometric shapes to decrease amount of light hitting surfaces
Hydrological Cycle
- quantity and quality of water
- more roads=more precipitation runoff
- surface flooding
- reduced recharge of aquifers
- build ponds to help retain water
Brownfield Sites
- contaminated urban sites
- leaking storage tanks, unconfined waste
- costly to mitigate
- health hazard- contaminants in water
- enviro damage- crops watered with contaminants
LUST
leaky underground storage tanks
Sustainable Urban Development integrates…
- Economy
- Ecology
- Social Components
Sustainable Urban Development Requires
1) Urban form
2) Transportation
3) Energy
4) Wate management
Urban Form
- type and distribution of infrastructure
- configuration of roads and transport networks
Urban Sprawl
low population density, high travel, single-family, detached homes, large properties
-loss of adjacent agriculture land, enviro sensitive areas, natural habitats, decrease water & air quality
Sustainable Urban Transportation
- mixed use urban areas
- reduced private car use
- public transit
- affected by urban form
- decrease distance travelled
- vehicle loading
- vehicle mode
Energy Use
- new technology
- GHG reduction- residential, commercial, and industrial buildings account for over 6%
- low usage
- promote green design
- construction material
Waste Management
- incinerators
- landfill sites
- blue boxes and green bins
1) Reduction
2) Re-use
3) Recycling