iaq sample report nicollet public school gym 3-15-2011

of 14/14
March 24, 2011 T. Sorenson Nicollet Public Schools One Pine Street, P.O. Box 108 Nicollet, MN 56074 Introduction This report presents the results from air samples taken by Brian Parrie of Advanced Health, Safety and Security on March 15, 2011 at Nicollet Public Schools. Samples wer e taken to assess possible mold contamination in the gymnasium. Methodology Four samples were collected inside the facility and one was collected outside the front door as a reference sample and a blank control sample via was sent for a total of 6 tests. Sampling was conducted using air pumps and Air (Zefon Air-O-Cell Cassettes, Lot # 20956) . Air was drawn through the cassette s at a rate of 25 LPM for approximately 15 minutes to meet the target volume of approximately 360 liters. The cassettes were placed at various highs from one to three feet. Samples were sent to the lab for analysis along with one empty cassette to represent a control sample. The results from the lab are calc ulated from the total number of i dentified mold spores. The lab utilizes a 1000X magnification (oil) to perform qualitative analysis, according to IAQL 033104 Proprietary Methods for Airborne Fungal Spore Identification / Quantitation.  Purpose

Post on 08-Apr-2018

221 views

Category:

Documents

0 download

Embed Size (px)

TRANSCRIPT

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    1/14

    March 24, 2011

    T. SorensonNicollet Public SchoolsOne Pine Street, P.O. Box 108Nicollet, MN 56074

    Introduction

    This report presents the results from air samples taken by Brian Parrie ofAdvanced Health, Safety and Security on March 15, 2011 at Nicollet PublicSchools. Samples were taken to assess possible mold contamination in thegymnasium.

    Methodology

    Four samples were collected inside the facility and one was collected outsidethe front door as a reference sample and a blank control sample via was sentfor a total of 6 tests.

    Sampling was conducted using air pumps and Air (Zefon Air-O-Cell Cassettes,Lot # 20956). Air was drawn through the cassettes at a rate of 25 LPM forapproximately 15 minutes to meet the target volume of approximately 360liters.

    The cassettes were placed at various highs from one to three feet.

    Samples were sent to the lab for analysis along with one empty cassette torepresent a control sample. The results from the lab are calculated from thetotal number of identified mold spores. The lab utilizes a 1000Xmagnification (oil) to perform qualitative analysis, according to IAQL 033104Proprietary Methods for Airborne Fungal Spore Identification / Quantitation.Purpose

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    2/14

    Client: Nicollet Public School Page: 2Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011

    The purpose of conducting air sampling in the Nicollet Public SchoolsGymnasium is to determine if there are mold spores at levels that exceedthe IAQ standard for a healthy and safe working environment and todetermine and/or eliminate any environmental hazard that may exists.

    Sample Data

    The following table lists all samples tested. Recommended response actionscan be found in this report:

    Data Form for Air Samples

    Table I

    Sample Location: Nicollet Public

    School / GymSampleNumber

    Fungal

    SporeCount

    LocationDescription

    Volume

    RateLPM

    MM MComments

    GymCenterDivider

    South/Eastentrance

    375 L 25 N1001 0.28 21

    CenterGym

    CenterGym

    Floor

    375 L 25 N1002 ND ND

    EastGym

    Centertile gymfloor

    375 L 25 N1003 1.3 96

    Cafeteria

    CenterCafeteria

    375 L 25 N1004 ND ND

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    3/14

    Client: Nicollet Public School Page: 3Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011

    OutsideFrontEntrance

    375 L 25 N1005 ND ND

    Control NA NA NA N1006 ND ND

    Observed Area = 28.6 mm

    Results

    Lab Result are attached as Appendix A

    Sample N1001

    Organism Raw Count Spores/M Ascospores spp. 1 11Aspergillus/Penicillum spp. 1 11

    Organism Raw Count Spores/M

    Cladosporium ssp. 9 96

    The lab reports provides airborne spore densities described as the totalcounts per millimeter squared over the observed area (total counts = theraw counts multiplies by QC factor of 4).

    The outside sample is always collected for reference purposes to determineif any bioaerosol concerns exists. While no government standards existregarding acceptable indoor microbial levels the outside air sample is usedto determine the amount of outside contaminants compared to inside. If theinside to outside air ratio is less than one it is usually determined that thereis no problem with the inside air. If the ratio exceeds one then it isinterpreted as if a mold source does exist within the facility.

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    4/14

    Client: Nicollet Public School Page: 4Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011

    Comparing the outside air sample to the inside air sample showed nosignificant concentration of bioaerosols or mold greater than one percent ofknown noxious molds.

    The molds listed above and on the lab result form show very lowconcentration of known noxious molds were found. Two species of moldwere described that were found in the gym and not outside/ambient airsample. Ascospores ssp. and Aspergillus/Penicillium ssp were found insidebut in very small quantities that would probably not warrant further

    investigation. The Cladosporium ssp. is a known common mold occurring inbuilding, homes and outdoors.

    Discussion

    Under ideal conditions, the indoor air mold/fungal count should be lower thanthe ambient outdoor level and should represent a similar distribution ofmold/fungal genus/species. Recent rainfall, snow and other climate changescan change the level of distribution during outdoor sampling. Due toincrease snow levels, freezing and thawing during the time of sampling mayexplain why there were no spores observed during the outdoor sampling.

    Ascospores ssp. and Aspergillus/Penicillium ssp. all are associated withwarm ,wet and /or damp conditions growing on decaying plant debris,compost piles water damaged building materials.

    Definitions and health effects are present in Appendix B of this report. Thedescriptions have been compiled from various sources on the internet andthe University of Minnesota Department of Environmental Science Healthand Safety. The list does compile observed effects of some strains of moldand/or fungal gene/species; it does not mean that all exposures to thespecific mold or fungus will have the same effect resulting in thesesymptoms.

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    5/14

    Client: Nicollet Public School Page: 5Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011

    Of the three observed organisms the Penicillium ssp. produces a microbialvolatile organic compound (mVOCs). The compound is 2-methyl-isoborneol,and is describes as a heavy musty odor.

    MVOCs that were produced can, even though the mold/fungal species isdead or dormant, remain porous and absorbent materials like carpet, ceilingtile, insulation etc. for extended periods of time. The odor will eventuallydissipate unless the mold/fungal growth reoccurs.

    I would suggest the follow actions be taken:

    Continue venting under the gym floor with forced air until the moisturecontinent of the wood is between 8-14%.

    Prevent any new sources of water that could revitalize existing coloniesunder the floor.

    Remarks

    The environmental services performed by Advanced Health, Safety andSecurity for this project have been conducted in a manner consistent withthe degree of care and technical skill exercised by environmentalprofessionals currently practicing in this area under similar budget and timeconstraints.

    Recommendations contained in this report represent my professionaljudgment at the time of inspection.

    This concludes this report.

    Any questions regarding the fieldwork, sample results or presented findingsshould be directed to:

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    6/14

    Client: Nicollet Public School Page: 6Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011

    Advanced Health, Safety and SecurityBrian Parrie1819 Hwy 59Slayton, MN 56172(605-430-8842).

    Appendix B

    Significance of Fungi Observed

    Cladosporium ssp. Most commonly identified outdoor fungus. The outdoor numbers are

    reduced in the winter. The numbers are often high in the summer. Most often found indoors

    in numbers less than outdoors. It is a common allergen. Indoor species may be different

    that outdoor species. It is commonly found on the surfaces of fiberglass duct liner in the

    interior of supply ducts. A wide variety of plants are food sources for this fungus. It is found

    on dead plants, woody plants, food, straw, soil, paint, and textiles. It can cause mycosis.

    Common causes of extrinsic asthma (immediate-type hypersensitivity: type I). Acute

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    7/14

    Client: Nicollet Public School Page: 7Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011symptoms include edema and bronchisospasms, chronic cases may develop pulmonary

    emphysema.

    Penicillim ssp.- A wide number of organisms have been placed in this genus. Identification

    to species is difficult. Often found in aerosol samples. Commonly found in soil, food,

    cellulose and grains. It is also found in paints and compost piles. It may cause

    hypersensitivity pneumonitis, and/or allergic alveolitis in susceptible individuals. It is

    reported to be allergenic (skin). It is commonly found in carpet, wallpaper, and in interior

    fiberglass duct insulation. Some species can produce mycotoxins. Common cause of

    extrinsic asthma (immediate-type hypersensitivity: type I). Acute symptoms include edema

    and bronchisospasms, chronic cases may develop pulmonary emphysema.

    Aspergillus ssp.- Is a genus of about 200 fungi worldwide and is more common in autumn

    and winter in the northern hemispheres. Its natural habitat is in hay and compost. This type

    of mold can be found everywhere indoors (prefers damp materials) and outdoors. Commonly

    found in soil, food compost, decaying vegetation, fire proofing materials, bedding, pillows,

    ventilation and air conditioning systems, and computer fans. It can produce mycotoxins

    these are often found in contaminated foodstuff and are hazardous to the consumer. Many

    toxins of this type of mold have been identified and depend greatly on genus and species.

    Common cause of extrinsic asthma (immediate-type hypersensitivity: type I). Acute

    symptoms include edema and bronchisospasms, chronic cases may develop pulmonary

    emphysema.

    Ascospores ssp.- Ascospores are microscopic spores which develop during the winter on

    dead, fallen leaves that were infected the previous season. From budburst onwards, rain

    triggers the release of ascospores into the air. Ascospore release will continue until earlyDecember, or later in a dry season, and this is known as the primary infection season.They

    can be found everywhere and commonly grow indoors on damp materials. Common cause of

    extrinsic asthma (immediate-type hypersensitivity: type I).

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    8/14

    Client: Nicollet Public School Page: 8Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    9/14

    Client: Nicollet Public School Page: 9Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    10/14

    Client: Nicollet Public School Page: 10Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    11/14

    Client: Nicollet Public School Page: 11Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    12/14

    Client: Nicollet Public School Page: 12Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    13/14

    Client: Nicollet Public School Page: 13Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011

  • 8/7/2019 IAQ sample Report Nicollet Public School Gym 3-15-2011

    14/14

    Client: Nicollet Public School Page: 14Report of: Air Sampling Project No:Location: Gymnasium Date: March 15, 2011