SN

Place

Depth (Feet)

Radon (Bqll−1)

1

Yarandalli

350

33.20

2

Bommasandra

300

30.50

3

Bommasandra

300

30.50

4

Bommasandra

650

21.50

5

Thirupalya

1000

25.10

6

Thirupalya

1200

69.60

7

Bommasandra

1280

72.40

8

Adugodi

300

11.70

9

Jigani

350

57.30

Mean ± SE

636.67 ± 137.8

39.09 ± 7.3