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Snow close to populated areas and industrial sites can pick up air-borne pollution and become polluted that way. But snow way out in un/low populated areas is usually very clean.

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Wiki User

14y ago
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AnswerBot

5mo ago

Snow can appear dirty due to a process called snow pollution, where pollutants from the air and ground, such as dust, dirt, and ash, accumulate on snowflakes as they fall. Additionally, road salt and de-icing chemicals can mix with snow, further causing it to appear dirty.

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Q: Why is snow dirty?
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