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Chemicals of Concern (Lead, Mercury, PBTs, etc.) (141 publications 1981-2020)

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Title (link to summary)NumberDate (released or updated)
Levels of Non-Nutritive Substances In Fertilizers 99-450December 1999
Addendum to Final Report: Screening Survey for Metals and Dioxins in Fertilizer Products and Soils in Washington State. Dioxins in Washington State Agricultural Soils 99-333November 1999
Calculating the True Costs of Pest Control 99-433June 1999
Supplemental Appendices: Final Report, Screening Survey for Metals and Dioxins in Fertilizer Products and Soils in Washington State 99-310April 1999
Final Report: Screening Survey for Metals and Dioxins in Fertilizer Products and Soils in Washington State 99-309April 1999
Focus: Policy Options to Regulate Dioxins in Fertilizers 99-1383January 1999