Table 2 RMSE ratios from comparison of bipollutant models (RR₁ = 1.05, RR₂ = 1) with and without measurement error

CO

NO_x

6.6

1.9

1.9

0.4

8.0

0.5

EC

8.2

1.3

1.3

0.6

8.1

0.7

PM_2.5

11.1

1.4

1.5

0.4

10.9

0.5

SO₄

11.0

1.2

1.4

0.5

10.9

0.6

O₃

11.5

1.2

1.5

0.3

12.2

0.4

NO_x

CO

6.0

1.8

13.7

2.0

16.9

2.0

EC

6.1

1.1

13.3

1.6

16.1

0.6

PM_2.5

9.1

1.2

23.6

0.5

23.4

0.5

SO₄

10.3

1.1

25.6

0.6

24.1

0.6

O₃

10.4

1.1

25.8

0.3

26.1

0.4

EC

CO

7.9

1.8

6.6

1.1

13.3

1.7

NO_x

6.6

1.6

6.6

0.3

13.3

0.4

PM_2.5

10.3

1.3

11.4

0.4

17.4

0.5

SO₄

11.4

1.1

14.0

0.6

18.0

0.6

O₃

12.1

1.1

13.5

0.3

19.0

0.4

PM_2.5

CO

2.9

1.8

11.4

1.0

13.5

1.9

NO_x

2.9

1.8

11.1

0.2

13.2

0.4

EC

2.7

1.3

10.4

0.6

12.4

0.8

SO₄

2.5

1.2

9.4

0.5

10.7

0.7

O₃

2.9

1.0

12.1

0.3

13.7

0.3

SO₄

CO

2.1

1.7

9.6

1.0

10.5

1.6

NO_x

2.0

1.6

9.6

0.2

10.6

0.4

EC

2.1

1.2

9.4

0.6

10.0

0.7

PM_2.5

1.9

1.2

6.8

0.4

8.4

0.5

O₃

2.0

1.0

9.0

0.3

10.1

0.3

O₃

CO

1.8

1.6

8.2

1.0

8.3

1.6

NO_x

1.9

1.8

8.5

0.2

8.9

0.3

EC

1.8

1.1

8.3

0.6

8.6

0.6

PM_2.5

1.8

1.1

8.1

0.4

8.8

0.4

SO₄

1.8

1.0

7.8

0.6

8.0

0.5