Why Monitor the Environment? (HSC SSCE Chemistry): Flashcards

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Why Monitor the Environment?
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Definition of pollutant

Substance causing undesired environmental effects

Where is ozone (O3\text{O}_3) beneficial?

Upper atmosphere (absorbs UV radiation)

What is eutrophication?

Waterway enrichment by nutrients (phosphates & nitrates)

Two nutrients causing eutrophication

Phosphates (phosphorus) & nitrates (nitrogen)

How do algal blooms harm underwater plants?

Block sunlight, preventing photosynthesis

Effect of oxygen depletion in eutrophication

Fish cannot breathe and die

4 toxic chemicals from anaerobic decay

CH4\text{CH}_4, NH3\text{NH}_3, H2S\text{H}_2\text{S}, PH3\text{PH}_3

MAPS mnemonic (eutrophication toxins)

Methane, Ammonia, Phosphine, Sulfide

Two industrial acid pollutants

Sulfuric acid (H2SO4\text{H}_2\text{SO}_4), nitric (HNO3\text{HNO}_3)

Chemists' role in pollution incidents

Identify source and extent of contamination

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