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Advances in Meteorology
/
2016
/
Article
/
Tab 1
/
Research Article
Twelve-Year Trends of PM
10
and Visibility in the Hefei Metropolitan Area of China
Table 1
The bottom and upper limit of API values and corresponding PM
10
concentrations.
API
PM
10
concentrations (
g m
−3
)
0
50
0
50
50
100
50
150
100
200
150
350
200
300
350
420
300
400
420
500
400
500
500
600