General Water Quality Indicators Flashcards
1
Q
Contemporary water issues UN is focusing on?
A
- climate change
- disasters
- ecosystems
- finance
- gender
- human rights
- water quality & wastewater
- scarcity
- transboundary water
- urbanisation
- sanitation & hygeine
- food & energy
2
Q
Definition of water?
A
clear, colourless, odorless, tastless liquid, H2O, essential for most plant & animal life & most widely used of all solvents
3
Q
Surface water?
A
- river
- stream
- lake
- reservoir (tap)
- urban runoff
4
Q
Ground water?
A
- spring
- aquifer
5
Q
Marine water?
A
- surface & deep ocean
- estuarine (salt marshes)
6
Q
What % of total water on earth is salt vs freshwater?
A
97.5% salt, 2.5% fresh
7
Q
What % of freshwater is stored as groundwater?
A
~30%
8
Q
Does water quality of rivers & lakes change without pollution present?
A
Yes - with seasons & geographic area
9
Q
Factors affecting water quality?
A
- sedimentation
- runoff
- erosion
- dissolved oxygen
- pH
- temp.
- decayed organic materials
- pesticides
- toxic & hazardous substances
- oils, grease, other chemicals
- detergents
- litter & rubbish
- environmental/meteorological conditions
10
Q
Factors impacting marine water quality? (3)
A
- zonation
- stratification
- light transmission & absorption
11
Q
Draw zonation
A
.
