Table 6: Contrast ratio in and out of the spiral arms in NGC 4254 in polarized and total synchrotron as well as H I emission. The positions of the inspected five regions are denoted in Fig. 1.

	a	b	c	d	e
Polarized intensity	5.3	6.1	12.9	1.9	16.6
Nonthermal intensity	3.7	4.2	1.8	2.7	3.3
H I emission	2.1	1.8	2.3	2.5	1.4