Table 1 Pairwise correlation matrix of black carbon levels (Coefficients of determination (R2)).

From: Comparison of personal exposure to black carbon levels with fixed-site monitoring data and with dispersion modelling and the influence of activity patterns and environment

A) BC averaged over 24 h

 

Personal measurements

Modelled for home address

Modelled for work address

Measured at continuous monitor

Personal measurements:

Parent on a leave

Working parent

  

Urban background

Rural background

Street level

Global radiation

Air pressure

Precipitation

Temperature

Wind speed

Parent on a leave

1.0

           

Working parent

0.48

1.0

          

Modelled for home address

0.12

0.15

1.0

         

Modelled for work address

NA

0.37

0.55

1.0

        

Measured at continuous monitor:

Urban background

0.14

0.16

0.46

0.46

1.0

       

Rural background

0.18

0.19

0.48

0.67

0.53

1.0

      

Street level

0.004

0.004

0.15

0.05

0.27

0.05

1.0

     

Global radiation

0.07

0.03

0.005

0.02

0.01

0.06

0.04

1.0

    

Air pressure

0.03

0.03

0.02

0.04

0.04

0.006

0.008

0.01

1.0

   

Precipitation

0.004

0.004

0.001

0.0009

0.005

0.003

0.002

0.02

0.05

1.0

  

Temperature

0.01

0.002

0.11

0.006

0.01

0.0004

0.07

0.42

0.03

0.007

1.0

 

Wind speed

0.002

0.004

0.13

0.04

0.10

0.0009

0.14

0.04

0.07

0.01

0.05

1.0

B) BC averaged over 1 week

 

Personal measurements

Modelled for home address

Modelled for work address

Measured at continuous monitor

Personal measurements:

Parent on a leave

Working parent

Urban background

Rural background

Street level

Global radiation

Air pressure

Precipitation

Temperature

Wind speed

Parent on a leave

1.0

           

Working parent

0.69

1.0

          

Modelled for home address

0.08

0.09

1.0

         

Modelled for work address

NA

0.45

0.26

1.0

        

Measured at continuous monitor:

Urban background

0.21

0.19

0.18

0.31

1.0

       

Rural background

0.24

0.18

0.27

0.76

0.59

1.0

      

Street level

0.13

0.005

0.01

0.004

0.006

0.02

1.0

     

Global radiation

0.27

0.10

0.0009

0.24

0.13

0.22

0.06

1.0

    

Air pressure

0.04

0.08

0.0004

0.0009

0.07

0.002

0.09

0.0009

1.0

   

Precipitation

0.06

0.03

0.09

0.14

0.08

0.14

0.09

0.03

0.04

1.0

  

Temperature

0.09

0.005

0.18

0.05

0.004

0.03

0.16

0.56

0.05

0.008

1.0

 

Wind speed

0.07

0.008

0.06

0.001

0.03

0.01

0.17

0.12

0.07

0.03

0.12

1.0

C) BC averaged over 1 year

 

Personal measurements

Modelled for home address

Modelled for work address

        

Personal measurements:

Parent on a leave

Working parent

        

Parent on a leave

1.0

           

Working parent

0.69

1.0

          

Modelled for home address

0.20

0.09

1.0

         

Modelled for work address

NA

0.13

0.08

1.0

        
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