Table 3.

Percentage of Pearson correlation coefficients in the correlation matrixes of Speck PM concentrations calculated from hourly and daily averages, from the original and LOD corrected data (denoted as LOD in the table).

	Correlation Coefficient	>0.9	>0.8	>0.7	>0.6	>0.5	>0.4	>0.3
First period	hourly	0.0	0.7	7.2	28.3	48.9	68.5	85.1
	hourly LOD	0.0	0.4	2.5	10.9	27.5	43.5	64.1
	daily	1.1	13.0	31.2	54.7	73.2	84.4	93.8
	daily LOD	0.7	8.0	23.9	41.7	56.9	72.5	85.5
Second period	hourly	0.0	0.9	4.6	10.2	26.2	44.3	57.5
	hourly LOD	0.0	0.9	2.2	8.3	14.8	26.5	36.0
	daily	0.9	7.1	16.0	27.7	37.5	52.3	62.2
	daily LOD	0.0	0.0	1.8	6.8	12.9	22.8	35.1