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Table 3 Net benefits (million €,2009 values) by time horizon over which the benefits accrue each year.

From: Policies to clean up toxic industrial contaminated sites of Gela and Priolo: a cost-benefit analysis

  100 year time 50 years time 10 year time
Gela    
7% discount factor 2,364
(1,332-3,305)
2,287
(1,285-3,193)
1,094
(591-1,562)
4% discount factor 7,403
(2,512-15,936)
6,474
(2,187-13,965)
2,365
(1,340-3,306)
2% discount factor Priolo 13,116
(7,667-18,187)
9,529
(5,556-13,226)
2,632
(1,497-3,689)
7% discount factor 576
(417-656)
528
(378-608)
-99
(-170;-53)
4% discount factor 3,419
(2,948-3,672)
2,806
(2,393-3,027)
613
(458-697)
2% discount factor 6,602
(4,091-8,253)
4,464
(2,592-6,077)
722
(239-1,107)