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Table 4 Detection rates of mutagenic activity by the microsuspension method

From: Evaluation of the genotoxicity of PM2.5 collected by a high-volume air sampler with impactor

 

Tsukuba

Maebashi

Nagoya

Fukuoka

number

parcentage(%)

number

parcentage(%)

number

parcentage(%)

number

parcentage(%)

Negative

3

(4.7)

1

(1.6)

2

(3.1)

3

(4.7)

week positive

13

(20.3)

18

(28.1)

13

(20.3)

11

(17.2)

Positive

48

(75.0)

45

(70.3)

49

(76.6)

50

(78.1)

sum

64

(100.0)

64

(100.0)

64

(100.0)

64

(100.0)