作者: Edwin Brands
DOI: 10.1016/J.ENVSCI.2014.01.006
关键词:
摘要: Abstract Proximity and connections to surface waters may play significant roles in determining impacts of manure spills. As occurred many U.S. states, Minnesota adopted 2000 more stringent regulations on Concentrated Animal Feeding Operations (CAFOs) including restrictions siting new facilities near waters. The objectives this study were determine whether CAFO proximity decreased following the evaluate implications restrictions. Permit dates, locations, distances nearest water bodies for 111 west central CAFOs determined based satellite imagery, historical records, correspondence with regulatory officials. Average distance between permitted after was greater than before 2000. increase average public open (1790 m, p = 0.03), but not streams (280 m, = 0.47). Decreased should benefit quality, continued be close hydraulic covered by restriction. Comprehensive spill tracking long term targeted quality monitoring are needed effectiveness other strategies protecting from