complicated smog allergic to pollen

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complicated smog allergic to pollen

Although he graduated as a science major from Beijing Normal University, Zhang says it is difficult for him to give an exact definition of what smog is in Beijing. life smiles at my window

"It's too complicated, and its ingredients keep changing."Matching

Under his scope, which magnifies the sample 1,000 times, the smog is found to contain minerals, fragments of animal fur and insects, seeds and burnt dust.river smile face

But many are compounds, he says, which are more difficult to identify.warm heartbeat dancing

"I wanted to know if there are many pollen grains in the early spring's smog, and my guess turns out to be right," Zhang says, noting there are on average 10 pollen grains found on each slide.forever salt water room

"Though the number is low compared with other ingredients of smog, it may partially explain why smog makes us feel uncomfortable because many people are allergic to pollen."elite gathering island

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