2.68 ppm
|
14.67 ppm
|
Banerjee et al. (2011)
|
|
Golaghat District, Assam, India
|
0.074–0.128 ppm
|
|
|
|
|
|
|
0.02–2.5 ppm
|
3.5–5.9 ppm
|
Chetia et al. (2011)
|
|
Kanpur, India
|
Not detected
|
|
|
|
|
|
0.02–0.04 ppm
|
|
|
Dotaniya et al. (2017)
|
|
Northeast Rajasthan, India
|
0.62–1.60 ppb
|
|
|
|
|
|
2.04–3.48 ppm
|
0.004–0.072 ppm
|
0.045–0.151 ppm
|
Duggal et al. (2017)
|
|
Uranium Mining Site, Jharkhand, India
|
|
|
|
|
|
|
|
0.01–1.3 ppm
|
0.06–5.3 ppm
|
Giri et al. (2010)
|
|
Northern Maharashtra, India
|
|
|
|
|
|
|
|
0.026–0.361 ppm
|
0–0.096 ppm
|
Golekar et al. (2013)
|
|
Jhajjar district, Haryana, India
|
|
1.1 ppm
|
|
|
214.2 ppm
|
|
|
|
|
Gupta and Misra (2018)
|
|
Sehore District, Madhya Pradesh, India
|
|
|
|
|
|
|
0–27 ppb
|
0–121 ppb
|
0–3330 ppb
|
Jinwal et al. (2009)
|
|
Himanchal Pradesh, India
|
2.25–117.5 ppb
|
|
|
|
|
|
1–322.58 ppm
|
0.02–0.041 ppm
|
0.12–0.60 ppm
|
Kashyap et al. (2018)
|
|
Medak District, Andhra Pradesh, India
|
2.9–1257 ppb
|
|
|
|
|
|
2.2–74.7 ppb
|
2.9–14 971 ppb
|
38.8–576
|
Krishna et al. (2009)
|
|
Upper Gangetic basin, India
|
1–36 ppb
|
|
|
|
|
|
|
0.0011–0.415 ppm
|
|
Kumar et al. (2019)
|
|
Ghaziabad, India
|
0.04–0.54 mg/L
|
|
|
9.20–3887 ppm
|
|
|
4.51–7.09 ppm
|
0.0–0.350 ppm
|
BDL (below detection limit)
|
Kumari et al. (2014)
|
|
Bist‐Doab region of Punjab, northwest India,
|
|
|
|
|
|
10–40 ppb
|
|
|
|
Lapworth et al. (2017)
|
|
East Bokaro Coalfield, Jharkhand, India
|
0.01–4.0 ppb
|
|
|
|
|
|
2.5–25.6 ppb
|
11.0–397.1 ppb
|
194–1685 ppb
|
Mahato et al. (2016)
|
|
Krishnagiri district Tamilnadu, India
|
|
0.5–5.45 ppm
|
10.76 ppm
|
31.4–220.6 ppm
|
49.59–292.7 ppm
|
|
|
|
|
Manikandan et al. (2014)
|
|
West Bengal, India
|
0.2–1219 ppb
|
|
|
2.9–64.6 mg/L
|
|
0.2–7 ppb
|
0.1–1.6 ppb
|
25.1–1538 ppb
|
0.06–18.5 ppm
|
Rahman et al. (2015)
|
|
Hakinaka Taluk, India
|
BDL
|
|
|
|
|
|
0.01–0.05 ppm
|
|
0–0.175 ppm
|
Rajappa et al. (2010)
|
|
|
