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Table 3 Calculations of estimated public health impact of fracking in the UK

From: The risk of hydraulic fracturing on public health in the UK and the UK’s fracking legislation

Site type

Number of people living less than ½ mile away

Risk

Extra cancer cases

Number of people living between ½ and 10 miles away

Risk

Extra cancer cases

Total extra cancer cases

Sites with drilled wells

1118.7

1 × 10−5

0.011

446,401.5

1 × 10−6

2.678

2.690

Site approved for drilling

1647.54

1 × 10−5

0.016

657,427.59

1 × 10−6

3.945

3.961

Sites under planning consideration

223.74

1 × 10−5

0.002

89,280.29

1 × 10−6

0.536

0.538

  1. A breakdown of the calculations used to estimate the number of excess cancer cases that may be caused if fracking operations commence in the UK. The risk values were found from McKenzie et al. [1] and the population numbers are shown in Table 2