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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