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Mold is a dangerous library pest because of the damage it causes to the collections. Mold thrives off of paper and books; these objects provide the fungi a source of nutrition, namely the sugar and starches present in the cellulose materials. [6] Mold feeds on cloth, leather, glues, adhesives, cellulose starch and starches in the sizing.
Killing mold with a biocide is insufficient, since chemical substances and proteins causing reactions in humans remain in dead mold. The following methods are used. Evaluation: Before remediation, the area is assessed to ensure safety, clean up the entire moldy area, and properly approach the mold. The EPA provides the following instructions: [10]
The most frequent substances tested are petroleum hydrocarbons, heavy metals, pesticides, solvents, asbestos and mold. Phase III Environmental Site Assessment is an investigation involving remediation of a site. Phase III investigations aim to delineate the physical extent of contamination based on recommendations made in Phase II assessments.
Parts with radii and fillets are more economical and easier to produce, reduce chipping, simplify mold construction and add strength to molded part with good appearance. Sharp Corners general design guidelines in injection molding suggest that corner radii should be at least one-half the wall thickness.
CDC.gov Mold; US EPA: Mold Information – U.S. Environmental Protection Agency; US EPA: EPA Publication #402-K-02-003 "A Brief Guide to Mold, Moisture, and Your Home" NIBS: Whole Building Design Guide: Air Decontamination; NPIC: Mold Pest Control Information – National Pesticide Information Center; Mycotoxins in grains and the food supply:
The Food Defect Action Levels: Levels of Natural or Unavoidable Defects in Foods That Present No Health Hazards for Humans is a publication of the United States Food and Drug Administration's Center for Food Safety and Applied Nutrition [1] detailing acceptable levels of food contamination from sources such as maggots, thrips, insect fragments, "foreign matter", mold, rodent hairs, and insect ...
The EPA elected to not modify the Pb NAAQS further, but decided to instead focus on the 1991 U.S. EPA Strategy for Reducing Lead Exposure. The EPA concentrated on regulatory and remedial clean-up efforts to minimize Pb exposure from numerous non-air sources that caused more severe public health risks, and undertook actions to reduce air emissions.
Dampness and mold in houses can cause diseases, but few studies have been performed on mold in schools and workplaces. [41] Environmental tobacco smoke is considered to be a leading contributor to indoor air pollution since exposure to second and third-hand smoke is a common risk factor. [42]