A girl take their hands in a pot of rainwater which has been gathered.

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On a raining day, if you thrust out your tongue

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If you collect rainwater from a rooftop, it could also include animal leftovers, such bird poop.

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Before being delivered into your home, rainwater is filtered to eliminate numerous minute elements.

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Rainwater is preserved in an open container, when it may also contain insects and decomposing organic debris such leaves.

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According to Centers for Disease Control and Prevention (CDC), a number of pollutants, including bacteria, viruses, parasites, dust, smoke particles, can get up in rainfall.

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While rainwater is stored in an open container, insects and decomposing organic materials, like dead leaves, may be involved.

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The CDC recommends using rainwater for other purposes, such watering plants, rather than collecting and drinking it.

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Most contaminants can be eliminated by using a clean distribution system and properly disinfecting the rainwater, whether it be with chemicals or by boiling and distillation.

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