2020-050 Council Resolution - Laserfiche WebLink

Home Search

Mr. Rick DeGardner Lino Lake Police Department Indoor Air Quality and Fungai Sampling Results IHSC Project Number: M20-694 May 6, 2020 Page 2 of 7 There is consensus that visible mold growth should be considered unacceptable in the built environment from the perspectives of known and potential adverse health effects and building performance. If visible mold is found, then it needs to be removed under controlled conditions, as stated in the above -referenced guidance documents. In assessing the potential for microbial exposures through sampling, it is important to note that individual microbial measurements provide a limited view of conditions since levels can fluctuate widely over time and under varying environmental conditions. Therefore, sample results in this report pertain only to conditions present at the time the samples were collected and may not reflect other time periods or conditions. SAMPLING PROCEDURE Industrial Hygiene Services Corporation conducted fungal spore trap sampling and tease tape sampling at the above referenced facility. Fungal spore trap sampling occurred in locker room and the Deputy Director's office. Fungal tease tape sample was collected from the supply diffuser in the work out room. A reference fungal spore trap sample was also obtained from the exterior of the building. Industrial Hygiene Services Corporation also measured common indoor air quality parameters in the locker room and Deputy Director's office. Viable and Non -viable Spore Trap Samples To characterize the ambient airborne condition of viable and non -viable fungal spores in the area of concern, a calibrated pump was used to draw 150 liters of air through a 37- millimeter cassette (Allergenco-D) that contains an adhesive faced material collection surface. Samples were submitted to EMSL Analytical, Inc. (EMSL) for analysis. EMSL is certified by AIHA for the analysis performed. The concentration and type of airborne spores in the air were determined using analytical method American Society for Testing and Materials D7391. Fungal Tease Tape Sample To identify the black dust residue on the diffusers throughout the facility. Industrial Hygiene Services Corporation collected one fungal tease tape sample. American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) Common Indoor Air Quality Parameters Industrial Hygiene Services Corporation setup a TSI IAQ Calc in the locker room and Deputy Director's office. The instrument recorded the carbon monoxide, carbon dioxide, temperature and humidity levels throughout the ten-minute sampling time. •