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Table 1 Summary of measured municipalities

From: Correlation between the arsenic concentrations in the air and the SMR of lung cancer

 Location

Total no. in Japan

Number of measured municipalities and population in each percentile group

Total of MMs

PTG 1–10 (< 0.77)

PTG 11–20 (0.77–0.90)

PTG 21–30 (0.90–1.04)

PTG 31–40 (1.04–1.20)

PTG 41–50 (1.20–1.36)

PTG 51–60 (1.36–1.60)

PTG 61–70 (1.60–1.77)

PTG 71–80 (1.77–2.20)

PTG 81–90 (2.20–2.70)

PTG 91–100 (≥2.70)

Cities and wards

  Number

672

237

21

23

21

27

24

23

25

25

24

24

  Men (1000×)

48,864

30,891

2,323

2,900

2,151

2,054

5,211

2,567

3,295

4,355

2,445

3,589

  Women (1000×)

50,783

32,112

2,489

3,056

2,262

2,102

5,221

2,603

3,376

4,541

2,650

3,812

  Total (1000×)

99,648

63,003

4,812

5,956

4,413

4,156

10,432

5,169

6,671

8,897

5,095

7,401

Towns and villages

  Number

2,558

27

6

3

5

0

2

3

1

2

2

3

  Men (1000×)

13,098

290

52

26

90

0

34

17

9

31

14

17

  Women (1000×)

13,951

291

51

27

89

0

33

18

10

29

16

19

  Total (1000×)

27,049

581

102

53

179

0

67

34

19

60

30

36

Municipalities

  Number

3,230

264

27

26

26

27

26

26

26

27

26

27

  Men (1000×)

61,963

31,181

2,375

2,926

2,241

2,054

5,245

2,583

3,305

4,386

2,459

3,606

  Women (1000×)

64,735

32,403

2,539

3,083

2,351

2,102

5,254

2,621

3,386

4,570

2,665

3,831

  Total (1000×)

126,697

63,584

4,914

6,009

4,593

4,156

10,499

5,204

6,691

8,956

5,125

7,437

  1. Each numerical value represents the sum of data obtained from the National Census (2000). Those individuals for whom the age was unknown were not included in the data set
  2. MMs, Municipalities for which arsenic concentrations were measured; PTG, percentile group. The range is given in ten-percentile groups. The numbers in parenthesis with each PTG indicate the range in arsenic concentrations (ng/m3)