Issue link: https://hi.iaq.net/i/630729
28 Section 4 the building, such as those that may be contained in cleaning materials, biocides, paints, caulks, and adhesives. Ask your suppliers to provide you with Material Safety Data Sheets. You may be unaware of the potential hazards of some materials that are com- monly used in public and commercial buildings. For example: ■ In 1990, EPA eliminated the sale of mercury-containing interior latex paint. (Enamel paints do not contain mercury.) People are urged not to use exterior latex paint indoors, as it may contain mercury. If you have paint in storage that may have been manufactured before August 20, 1990, you may contact the manufac- turer, the National Pesticide Telecommu- nication Network (1-800-858-7378), or your State Health Department for guidance. ■ In 1990, EPA banned the use of hexavalent chromium chemicals in cooling towers, because the chemicals have been shown to be carcinogenic. ■ Heating system steam should not be used in the HVAC humidification system, as it may contain potentially harmful chemicals such as corrosion inhibitors. Collect information on building occu- pancy The Zone/Room Record shown on the following page (and also reproduced in Tab V) can be used during IAQ profile development to maintain an up-to-date record of the way each area of the building is used, its source of outdoor air, and whether or not it is equipped with local exhaust. If underventilation is suspected, the form can be used to estimate ventila- tion rates in cubic feet per minute per person or per square foot floor area, for comparison to guidelines such as design documents, applicable building codes, or the recommendations of ASHRAE 62- 1989 (see the table that is reproduced in Appendix B). Sample Form Pollutant and Source Inventory Form Using the list of potential source categories below, record any indications of contamination or suspected pollutants that may require further investigation or treatment. Source Category Checked Needs Attention Location Comments SOURCES OUTSIDE THE BUILDING Contaminated Ambient Air Pollen, dust Industrial contaminants General vehicular contaminants The inventory should include chemicals stored or used in the building for cleaning, maintenance, operations, and pest control. If you have an MSDS (Material Safety Data Sheet) for the chemical, put a check mark in the right-hand column. If not, ask the chemical supplier to provide the MSDS, if one is available. Date Chemical/ Use Storage MSDS Brand Name Location(s) on File? SEE COMPLETE FORMS PAGES 119 AND 127 Sample Form Chemical Inventory Form