Pesticide active ingredients used in treatment of wood to protect it from insects, fungi and other pests. In this report, a total is presented for usage of wood preservative chemicals in industrial plants, the bulk of which is for pressure treatment. The major categories of pesticide chemicals included in this report as industrial wood preservatives are water borne preservatives (primarily arsenicals), oil borne preservatives (such as copper naphthenate and pentachlorophenol), creosote, creosote-coal tar and creosote petroleum.