Add Yahoo as a preferred source to see more of our stories on Google. Everyone knows you don’t eat yellow snow, for obvious reasons. Dirt, dust and gravel also discolor snow that has already fallen to ...

Freshly fallen snow can contain harmful chemicals and contaminants absorbed from the atmosphere. Snowflakes can pick up pollutants like nitrogen, sulfur, microplastics, and PFAS as they fall. A small ...

Everyone knows you don’t eat yellow snow, for obvious reasons. Dirt, dust and gravel also discolor snow that has already fallen to the ground, reminding everyone what they might ingest if they were to ...