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从. 今. 年. 起. 年. 初. 经. 常. 在. 告. 报. 中. 空. 气. 质. 量. 听到. PM2.5. 这个词. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5. PM2.5.

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PM2.5

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PM2.5


PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5

PM2.5


PM2.5

?

PM

PM2.5

2.5

particulate matter

PM

PM2.5


PM2.5

PM

PM2.5

2.5

particulate matter





10

2.510

2.5


P

M

2.5

70


P

M

2.5

90

PM2.5

PM2.528




2005

PM2.5

5

8

7

6

3

2

4

1

6

5

4

2

1

3

PM2.5


2005

3

4

3

1

2

1

2

PM2.520

4

2

3

1

1

5

PM2.53510


20109,PM2.5

PM2.5

1997

2010PM2.5PM2.5


PM2.580

PM2.5)


1018-259pm2.5

PM2.5

PM2.580%20%


20120524

20122

3

1

2

4

5

6

7

1

2

4

3

PM2.5

74

20120524

20122

PM2.5

7410PM2.512


PM2.5

2012

113

2013

2015

2016


2012062710PM2.5

24

10PM2.5


PM2.5

pm2.5

pm2.5

pm2.5


pm2.5

pm2.5

pm2.5

PM2.5


PM2.5


PM2.5

PM2.5

The


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