Aerosol Number Concentrations and Visibility during Dense Fog over a Subtropical Urban Site

Table 1

Correlation coefficient and ANC at 1000 m and for complete limitation of visibility approaching 0.

S. number	Curve fit	Correlation coefficient	ANC for visibility
			At 1000 m	Approaching 0 m
1	Linear	0.74	2.12 × 10^6	3.0 × 10^6
2	Polynomial second order	0.78	1.9 × 10^6	4.0 × 10^6
3	Logarithmic	0.76	2.17 × 10^6	≈1.0 × 10^7
4	Power	0.80	1.95 × 10^6	≈4.0 × 10^8
5	Exponential	0.87	2.19 × 10^6	4.0 × 10^6