Bio 346 - Freshwater Eco. --> Global Challenges of Sustaining Clean and Healthy Water Under Changing Climate and Land-Use Scenarios

Question 1

What do millions of people die from?

Answer 1

Contaminated water

Question 2

What is the % of people in rural communities that don’t have access to clean water?

Answer 2

77%

Question 3

Pathogenic bacteria and protozoans

Answer 3

Intestinal disease

Question 4

Excessive nutrients and algal

Answer 4

Neuro and hepato toxins and carcinogenic disinfection by products

Question 5

Harmful chemicals (5 things)

Answer 5

1. Pesticides
2. Herbicides
3. Metals
4. Antibiotics
5. Pharmaceutical car products

Question 6

What area has greater risk for water contamination?

Answer 6

Rural, remote and slum communities

Question 7

What happens the chlorination when you travel away from the distribution treatment?

Answer 7

It increases use because there is higher potation for it to get contaminated as it gets farther way from the treatment centre

Question 8

What is the health correlation with high Cl?

Answer 8

People are showing more illness

Question 9

In Bangladesh what are the wells being contaminated with?

Answer 9

Arsenic

Question 10

What is seriously contaminating the surface and grown water?

Answer 10

Fecal materials

- Millions are dying from this

Question 11

What must surface or ground water protect and management achieve? (3 things)

Answer 11

1. Develop effective management strategies to decrease loading of chemicals and microbes to water
2. Understanding the transport and fate of microbes and chemicals (e.g. drugs) of public health concerns
3. Enhance community knowledge and understanding towards changing policy

Question 12

What are 5 whitings that can be loaded into the enviro?

Answer 12

1. Pathogens
2. Nutrients
3. Metals/organics
4. Humid compounds
5. Pharmaceuticals

Question 13

What does biomagnification cause?

Answer 13

Neural diseases

Question 14

Coagulation/Flocculation

Answer 14

Removes colloidal particles by adding certain chemicals (coagulants)

Question 15

Sedimentation

Answer 15

Floc settles down to bottom

Question 16

Filtration

Answer 16

Removes particles through filters

Question 17

Disinfection byproducts

Answer 17

Kills bacterial and other organisms

Question 18

Storage

Answer 18

For disinfection to take place and for variable water demand

Question 19

What does chlorination produce?

Answer 19

Lots of hydrocarbons

Question 20

What happens to the primary consumer N15 as you increase population

Answer 20

Increases

Question 21

What are serious concerns for Canada and globally?

Answer 21

1. Unsustainable land use

2. Water quality