Table 5 Seasonal element concentrations (average, min and max levels expressed as ng m ^-3 ) in PM ₁₀ determined by INAA and IPAA in atmospheric particulate sampled in downtown Rome

0.22

0.1

0.5

0.25

0.1

0.6

2900

500

5300

800

200

1600

6

1

15

4

1

9

60

30

120

30

5

70

40

20

70

70

10

140

2200

800

4200

1200

300

2000

0.4

0.3

0.9

0.75

0.3

2

5.6

0.7

10

2

0.2

5

1300

300

3900

1400

300

4700

0.7

0.4

1.2

0.5

0.1

0.9

7

4

13

16

2

38

1.2

0.6

2.2

0.6

0.2

1.3

0.08

0.04

0.14

0.03

0.01

0.07

2200

1000

3600

1100

400

2700

0.36

0.15

0.62

0.13

0.01

0.30

0.14

0.05

0.36

0.13

0.03

0.20

6

3

8

6

3

10

1120

50

1900

320

50

1000

5

2

9

2

0.3

4

1090

50

2700

560

200

1200

40

15

60

35

10

90

0.5

0.2

0.6

2

0.3

7

1500

300

7000

730

200

3500

1.7

1

5

8

3

13

120

80

200

270

80

840

17

10

30

7

2

15

2

0.7

4

2

0.7

7

0.3

0.1

0.5

0.1

0.03

0.2

0.7

0.2

1.1

0.5

0.2

1.3

0.03

0.01

0.05

0.01

0.005

0.02

0.055

0.1

0.10

0.024

0.01

0.05

3

1

5

0.9

0.3

2.5

540

200

1050

265

200

500

1

0.5

2

1.4

0.5

4

0.4

0.1

0.7

0.2

0.06

0.4

8

1

15

14

8

23

110

50

260

190

50

520

50

10

90

20

5

50