Quiz 1: Particulate Pollution (0.2 CPD) - WQA Annual Education Kit Vol IX

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70% correct required to pass (5 of 7 questions)

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1. How much time do plastic beverage bottles need to decompose?

1 point

a. 50 years

b. 250 years

c. 450 years

d. 600 years

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2. Â What happens to plastics as they decompose?

1 point

a. They oxidize to water and carbon dioxide

b. They provide a food source for bacteria

c. They break down into smaller particles

d. They raise the surrounding water temperature

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3. What is the significance of the majority of total volume of plastics in the environment being less than 10 um in size?

1 point

a. The smaller particles are better at adsorbing PPCPs

b. Water treatment plants cannot remove these particles

c. POU treatment technologies cannot remove these particles

d. Toxic bacteria adheres better to these particles.

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4. Which measurement helps protect municipal water from microplastics?

1 point

a. PPCP limit

b. Turbidity limit

c. TDS limit

d. Microorganism limit

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5. The recent hurricanes have demonstrated the utility of bottled water in an emergency. What behavioral change is needed to lessen environmental impact?

1 point

a. Create disposal options that keep bottles out of the waterways

b. Pre-decompose the bottles by burning them

c. Incentivise consumers to recycle the bottles

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6. What is the most important consideration when selecting an appropriate POU/POE treatment technology?

1 point

a. The electronic charge on the plastic particles

b. The size of the plastics particles

c. They hydrophobicity of the plastics particles

d. The chemical composition of the plastics particles

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7. Which treatment technology combination is recommended to significantly reduce PPCPs along with microplastics?

1 point

a. Activated carbon plus cation exchange

b. Activated carbon with reverse osmosis

c. Microfiltration followed by reverse osmosis

d. Ultrafiltration followed by UV

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