November 1999 Ecology Study of Metals and Dioxins in Fertilizers and Soils
In April 1999, Ecology released its final report: " Screening Survey for Metals and
Dioxins in Fertilizer Products and Soils in Washington State".
In November 1999, Ecology released its Addendum to this final report:
"Dioxins in Washington State Agricultural Soils". This is a summary including comments.