섬유

heavy metals in cottontail rabbits on mined lands treated with sewage sludge

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 240
levels of heavy metals in soils, vegetation, and tissues of cottontail rabbits on a pennsylvania strip-mined site treated with sewage sludge were compared with those from a nontreated mine site to determine increases due to treatment effect. concentrations of cd, cu, and zn were higher in vegetation on the sludge-treated site. zinc was higher in femurs of cottontails from the treated site, but levels of most metals in the tissues of cottontail rabbits from the treated site were comparable to those from a nontreated mine site and a nonmined area. baseline values for the uptake of cd were documented with captive cottontail rabbits fed diets supplemented with 0, 5, or 25 mg cd kg** $minus$ **1. liver and muscle tissue of rabbits collected on treated mine sites contained higher cd levels than laboratory controls, but overall, cottontail rabbits did not accumulate metals on the sludge-treated site at hazardous levels (edited author abstract) refs
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