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15 cards from this deck
Water safe to drink
Low levels
Insoluble particles
Harmful microbes
Chlorine, ozone, UV light
Making seawater potable
Distillation (boiling seawater)
Energy-intensive & costly
Membrane systems
Adding fluoride to water supply
Prevents tooth decay
Individual local authorities
Tooth discolouration/decay (fluorosis)
Birmingham, 1964
Near the sea
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