Chapter 13- Urban Enviro Management Flashcards Preview

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Flashcards in Chapter 13- Urban Enviro Management Deck (16):
1

People live in urban places most in...

Latin America and Caribean
-number of people in urban areas has been increasing steadily

2

In Canada

-majority of the population live in urban areas and this number is increasing

3

Implications?

Air pollutants
Urban Heat Island Effect
Hydrological Cycle
Brownfield Sites

4

Air Pollutants

- CO, O3, particulates, NOx
-25,000 deaths/yr from air pollution
-increases asthma and emphysema
-increase in smog advisory days

5

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

6

Hydrological Cycle

-quantity and quality of water
-more roads=more precipitation runoff
-surface flooding
-reduced recharge of aquifers
-build ponds to help retain water

7

Brownfield Sites

-contaminated urban sites
-leaking storage tanks, unconfined waste
-costly to mitigate
-health hazard- contaminants in water
-enviro damage- crops watered with contaminants

8

LUST

leaky underground storage tanks

9

Sustainable Urban Development integrates...

1. Economy
2. Ecology
3. Social Components

10

Sustainable Urban Development Requires

1) Urban form
2) Transportation
3) Energy
4) Wate management

11

Urban Form

-type and distribution of infrastructure
-configuration of roads and transport networks

12

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

13

Sustainable Urban Transportation

-mixed use urban areas
-reduced private car use
-public transit
-affected by urban form
-decrease distance travelled
-vehicle loading
-vehicle mode

14

Energy Use

-new technology
-GHG reduction- residential, commercial, and industrial buildings account for over 6%
-low usage
-promote green design
-construction material

15

Waste Management

-incinerators
-landfill sites
-blue boxes and green bins
1) Reduction
2) Re-use
3) Recycling

16

Solutions

-parks and pathways
-more efficient municipal vehicles
-blue and green box services
-no plastic bags in supermarkets
-bike rental programs
-public transportation