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Table 7 Levels (ng m -3 ) of selected elements in PM 10 investigated along four decades in downtown Rome

From: Deep investigation on inorganic fraction of atmospheric PM in Mediterranean area by neutron and photon activation analysis

  

PM10

 
 

1965-78

1989-92

2000-05

As

4.00

 

1.35

Br

70

50

22

Cd

0.751

 

0.520

Co

0.498

0.523

0.379

Cr

16

2.3

7.28

Hg

0.131

0.092

1.07

La

2.04

0.803

0.188

Ni

8.01

1.72

4.54

Pb

270

172

92

Sb

1.99

2.13

9.22

Se

0.533

0.091

0.692

Th

0.911

0.723

0.229

V

14

4.82

4.02

Zn

190

28

80

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BMC Chemistry

ISSN: 2661-801X

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