TABLE 2.

Numbers of Trp⁺ and PCR⁺ cultures obtained from compost and soil

Prefecture	No. of cultures from:
	Compost			Soil
	Total	Trp+	PCR+	Total	Trp+	PCR+
Kanagawa	50	30	26	38	11	5
Fukushima	18	18	17	2	0	0
Chiba	12	8	6	13	2	2
Toyama	10	6	4	0	0	0
Okinawa	8	5	1	0	0	0
Hokkaido	3	2	1	3	0	0
Tokyo	0	0	0	22	11	6
Ibaragi	5	2	0	4	0	0
Other	1	1	1	11	1	1
Total	107	72	56	93	25	14