Table 12 Equation for the relationship between light and illuminance values at different BC concentrations.

From: Effects of snow cover on urban light climate environment in the high latitudes of northeast China

BC/g

Equation

R2

Rate of change Lux/w

0

Y = 235.803x + 130.197

0.985a

235.803

10

Y = 145.193x + 82.447

0.996a

145.193

20

Y = 127.670x + 27.757

0.999a

127.670

30

Y = 107.037x + 22.757

0.995a

107.037

40

Y = 92.343x + 32.950

0.980a

92.343

50

Y = 83.807x + 30.253

1.000a

83.807

  1. aThe significance level of the difference in means is 0.01.