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Which role do ultrafine particles play in dirty air?

User Tomas
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2 Answers

3 votes

Answer:

They can worsen symptoms for people with breathing difficulties.

Or B on Edg

Step-by-step explanation:

User Plusheen
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6 votes
Taking tribute less than 13000 Premature deaths a year it can also make the problem worse for some people that have breathing problems yr wellcome ✌️☝️
User Amber Roxanna
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