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Q: What contributes most to pollution in big cities - cars or factories/district heating plants?
12 years 16 weeks ago in Health & Safety - China
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It's a combination of all three. And since the big city in China has so many cars on the roads and so many factories it's hard to determine which contributes the most. They all contribute to the pollution and it's a combination of all three that you mentioned that makes the pollution feel that way.
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12 years 16 weeks ago
