Diversity and Inclusion are a part of Cornell University’s heritage. We are a recognized employer

and educator valuing AA/EEO, Protected Veterans, and Individuals with Disabilities.

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Nellie J. Brown, MS, CIH

Director

Workplace Health & Safety Program

Cornell University

ILR School

The Worker Institute

617 Main St. – Suite 300

716-852-1444 Ext 111

njb7@cornell.edu

ilr.cornell.edu/healthsafety

March 9, 2020

Ms. Germain Harnden, Executive Director WNYCOSH 2495 Main St. -- Suite 438 Buffalo, NY 14214 Dear Ms. Harnden: As per your request, the following is my report on the indoor air investigation which I conducted at Albion Elementary School, 324 East Avenue, Albion, NY, on 09/23/2019 and 09/30/2019. SUMMARY:

1. Insufficient ventilation: carbon dioxide measurements indicate sufficient ventilation for typical occupancy; temperature and humidity meet ASHRAE recommendations. The univents opening onto courtyards A and B had mowed grass impacted onto the screens. When mowing, the cut grass should be directed away from the uninvent air intakes. The band office was observed as having no HVAC; G7 has air-conditioner but no ventilation. An AccuTemp oven should be moved further under the range hood, for better exhaust. Room J11 restroom exhaust vent draws poorly; the vent screen is covered in lint and needs regular cleaning. Both the Boys’ and Girls’ locker rooms exhausts have little to no flow; the system needs to be evaluated for operation. Restroom exhausts for J1 and J2 had slow flow; all other restroom exhausts worked well.

2. Inside sources of air contaminants: consider upgrading vacuum cleaners to HEPA (if not HEPA currently). Recommendations were made to discontinue products/dispensers of perfumes and fragrances, and to discourage the use of products not purchased through the school district’s purchasing program.

3. Outside sources of air contaminants: no significant issues 4. Biological sources of air contaminants: there have been historical water problems. Carpeted

classrooms have carpet right up to the sinks/water fountains. The infrared moisture meter indicated numerous rooms with drips and splashes of water on the carpet. As moist areas can lead to mold or bacterial growth, it is desirable to have hard flooring in front of sinks/water fountains. Removable, cleanable floor mats could be located at exterior doors; this is very useful to stop dirt and moisture being tracked into the building where they can provide habitat for fungal growth in carpets. Water stains were observed on the ceiling in several rooms; while these were found to be nonactive as per the infrared moisture meter, potential sources of the moisture should be identified and resolved. Care should be taken to make sure that moisture from watering plants does not wet carpet so as to prevent fungal growth in carpet. Plants should not be allowed to drop debris into the univents.

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5. Building fabric sources of air contaminants: no significant issues This investigation dealt with basic issues; is there any desire to pursue further concerns about the indoor environment? SITE INVESTIGATION: The investigation took place on 09/23/2019 and 09/30/2019 with the assistance of Buildings and Grounds superintendent, the Elementary School Principal, and other staff who provided background information for the building and access to facilities. Information had also been provided, previous to the site investigation, during indoor environment training programs which I provided on 04/12/2019 and 06/10/2019. A floor plan and occupancy schedule were provided. A basic indoor air investigation consists of: 1. Collecting information from building occupants concerning the nature of the complaints; checking for

patterns of symptoms and times at which they occur. 2. Investigating building ventilation for the nature of its operation, its adequacy, and maintenance;

verifying with carbon dioxide or other measurements as appropriate 3. Seeking out sources of contaminants which may originate from: a. inside the building

b. outside the building c. biological contamination (fungi, “mold,”, “mildew” and other) of the building

d. building construction materials (“building fabric”) 4. Reporting and discussing findings. The USEPA recommends that building occupants should be kept informed during the entire process of indoor air quality (IAQ) investigation and mitigation, including:

how the investigation is progressing, the types of information being gathered, and ways that they can help the process along

the nature of the health problems being reported; this enables occupants to put their symptoms into perspective

how long the investigation is expected to last

any attempts which are made to improve indoor air quality

any remaining work which needs to be done and the schedule for its completion It is important that the air monitoring be as representative as possible. It has been my experience that considerable information, observations, and monitoring can be accomplished during the site visit if the following conditions can be met:

keeping windows closed from the end of the day prior to the site visit until after the air samples have been taken. I realize that keeping the windows closed may be uncomfortable for the building occupants if the building relies on windows for ventilation; however, it is necessary to be able to

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collect air monitoring data which are as representative as possible of what the building is like when it is closed up.

having a “facility manager” or other knowledgeable person able to meet with me to discuss the history and operation of the building and the maintenance and custodial products in use (as discussed above)

a schedule of room occupancy or similar information so that air samples can be taken during periods of peak room occupancy

ability to review building floor plans, blueprints, etc. (particularly for building mechanicals and air movement, such as ducting, plenums, etc.)

OCCUPANT CONCERNS: This investigation was requested as a result of building occupants believing that they had an excessive amount of breast cancer in faculty and staff. A presentation on breast cancer and teachers was provided on 1/31/2019 and the options of staff training and a site investigation was discussed.

BUILDING CONSTRUCTION AND RECENT HISTORY: This building has a floor area of 179,300 square feet for a rated occupancy of 1200 persons. The original building was built in 1957 with remodeling in 1965, 1985, 2000 – 2002, and 2004. The original building is constructed of speed tile and clay block; wings B & C are concrete block; wings H, I, J, and K have brick facing. Interior walls are drywall on steel studs; there is some wall tile. The original structure has a crawl space; the rest of the buildings have a concrete slab on grade. The roof consists of a rubber membrane. The ceiling consists of ceiling tiles (cellulosic). There is a variety of floor coverings: almost all rooms have carpet; hallways, kitchen, cafeteria, and a few rooms have floor tile. Remodeling has involved:

1965: administrative wing and district offices were added

1985: B & C wings were added

2000 – 2002: Library and cafeteria were enlarged; H and I wings were added

2004: J and K wings were added; conference rooms A and B were added The building occupancy consists of 98 faculty and staff and about 850 students. Occupancy typically occurs from 7:30 AM to about 4:30 PM. Custodial staff cover the time period of 5:30 AM to 12:00 AM. There are community events in the evenings and on Saturdays: in the evenings, the gym and cafeteria may be used; the gym is used on Saturdays until 3 PM. VENTILATION INADEQUACY AS A SOURCE OF INDOOR AIR PROBLEMS:

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Ventilation can be inadequate for one or more of several reasons. There may simply be insufficient fresh outdoor air being brought into the building due to extreme energy conservation to lower costs of heating, cooling, humidifying or dehumidifying the intake air. Sometimes the problem is summer/winter economizer cycles or early afternoon shutdown or late morning startup. (Note that custodial work and the use of cleaning products often occurs when ventilation in the building is not in use. This means potential chemical exposure for housekeeping staff, plus air contaminants remain in the building for the next day’s occupants to breathe.) There may be insufficient supply air to meet the needs of local exhaust ventilation used for processes or equipment. The system’s design (such as locations of diffusers and exhausts, branching of ductwork or flexible ducting) can reduce the efficiency of air delivery. Inadequate ventilation may be caused by poor air distribution and mixing due to stratification of air layers, open plan work areas with a high density of people or with partitions which prevent airflow down where the people are sitting, or draftiness. A building operated under negative pressure may result in the pressure differences causing the air flow where unwanted, such as backwards down the sanitary stacks. It may be possible to permit a high use of recycled air with filtration and cleaning methods to remove the problem contaminants. The particulates may be removed by mechanical filtration; some air contaminants may be adsorbed by carbon filters. Electrostatic precipitation and other devices may be available for this purpose. The performance of these methods is highly variable and requires careful consideration for the devices used for these purposes. However, a significant number of indoor air problems appear to be directly related to improper, inadequate, or completely absent maintenance of the HVAC system. The accumulation of dirt and particulates (pollen, fibers, debris, bird nests and feces, leaves, etc) in intakes, on filters, or in ductwork can lead to many health complaints, as well as provide habitats for microorganisms to flourish.

What was found during my site investigation: The gym is served by three (3) rooftop central air handling units (AHUs). The classrooms are served by unit ventilators (univents). Outside air enters the univents along the exterior walls and leaves the rooms via relief dampers or through ducts from the room to the hall and then via relief dampers from the hallways. The new additions have gravity reliefs from each classroom. The main office, district office, gym, cafeteria, and conferences rooms have their own HVAC units, but have central heating with the rest of the building. The gym ventilation system is run on Saturdays, while the rest of the building is in unoccupied mode. The band office was observed as having no HVAC; G7 has air-conditioner but no ventilation. Faculty Room C10 was a former smoking lounge; the fan is reported as not working now. During the hands-on portions of the training programs, the AHUs were inspected; the bird screens were in place and unobstructed. The McQuay unit had wasp nests.

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Powered exhausts serve the restrooms, J11 restroom, kitchen, kiln, front foyer, and boys’ and girls’ locker rooms. The performance of the restroom exhausts was evaluated with smoke tubes and the results were as follows: LOCATION RESULTS OF SMOKE TUBE TESTS

Kitchen range hood Exhaust vent draws well at the appliance level and above. There is smoke kick-out at the left of the corner AccuTemp oven. If oven is moved further under the hood, this issue may resolve.

J16 kiln hood Exhaust vent draws OK, especially when hood is at 6” above the kiln. A little kick-out occurs at 12” above the kiln.

J11 restroom Exhaust vent draws poorly. Vent screen is covered in lint and needs regular cleaning. Lint should be cleaned from restroom exhaust grills on a regular basis to enable air to move freely and maintain the efficiency of the exhaust fans.

Boys’ locker room Restroom exhaust and shower exhaust both have little to no flow. System needs to be evaluated for operation.

Girls’ locker room Restroom exhaust and shower exhaust both have little to no flow. System needs to be evaluated for operation.

Restrooms J1 and J2 had slow flow. All other restroom exhausts worked well.

The HVAC system is computer-controlled by thermostats and its operation is reported as satisfactory. The system is covered by a preventive maintenance plan which includes checking belts, filters, and performing lubrication. Overall, the system is reported as having adequate access for maintenance. Where incoming or recirculated particulates are of concern, it is preferable to use filters of the extended-surface type or pleated type which can keep air (and HVAC systems) clean. An example would be a 50 – 70% rated efficiency as per ASHRAE 52.1 atmospheric dust spot test (for protecting indoor air quality) or arrestance test (for protecting coils, fans, and HVAC) or show a minimum efficiency report value for particle size (MERV) rating of 7 as per ASHRAE 52.2. The filtration efficiency of the filters is reported as MERV-8. Adequate dust removal on the raw and recirculated air also assists with reducing custodial cleaning and can reduce soiling, as well as prolong the life of HVAC equipment. The air filters are reported as changed once a year for univents and twice a year for the air-conditioning units. It was observed during a previous workshop that, when the weather is hot and classroom temperatures become uncomfortable, windows are opened. It should be noted that, when this is done, the air brought into the building is raw, unfiltered air.

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For evaluating temperature and humidity in a building, the ASHRAE Standard 55 on “Thermal environmental conditions for human occupancy” is useful. This standard has charts recommending acceptable ranges of temperature and humidity for people in typical summer and winter clothing during light, primarily sedentary activity. The ranges are based upon a 10% dissatisfaction criterion (that is, 10% of the occupants may experience whole body discomfort and 10% partial body discomfort), thus 80% of the occupants are expected to be satisfied with the temperature and humidity. In brief, these ranges are approximately 67 - 79 F in winter; 74 - 83 F in summer. No lower humidity limit is recommended for thermal comfort; however, non-thermal comfort factors such as skin drying, irritation of mucus membranes, dryness of the eyes, and static electricity generation, may place limits on the acceptability of very low humidity environments. Similarly, the upper recommended humidity ranges of approximately 55% for 80 F to 85% at 67 F address human comfort only, not the potential for high humidity levels resulting in condensation on building surfaces which in turn could lead to microbial growth. The temperature setpoints are 75F for summer and 69-70F for winter. The HVAC runs on Monday from 6 AM – 4 PM; Tuesday through Friday from 7 AM – 4 PM; with the net/unoccupied mode used for weekends (except for the gym, as noted).The heating system consists of natural gas heating for chemically-treated, hot water boilers. Combustion air for the boilers is supplied by a combustion air fan and 2 air intakes. The gym, cafeteria, and kitchen are heated using gas-fired units. There are no chillers nor cooling towers. There is a humidistat for the main office and humidity control for the pool area; otherwise there is no humidity control other than that which occurs during air-conditioning. Room air temperature measurements were made using an Extech Instruments Model 45160 3-in-1 Thermo-Hygro-Anemometer. The results were as shown in the table below. The classroom temperatures ranged from 73.8 – 80.2F; except for A3 at 69.1F; these meet the recommendations of ASHRAE Standard 55.

For interpretation of indoor air contaminant concentrations and fresh air supplied in buildings, the ASHRAE Standard 62.1-2019 “Ventilation for Acceptable Indoor Air Quality” is particularly useful. This standard recommends ventilation needs for classrooms, art classrooms, and science rooms at 10 cfm/person of fresh outside air. This standard attempts to maintain good indoor air quality by supplying sufficient fresh air to keep the concentrations of carbon dioxide in the occupied spaces at no more than 700 ppm higher than the outside air concentration.

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The performance of the HVAC system was evaluated using carbon dioxide measurements. To verify that sufficient fresh outside air is being brought into the building, carbon dioxide (CO2) can be measured. Carbon dioxide is a normal component of exhaled air and must be evaluated while the building is occupied. The outdoor concentration of carbon dioxide is usually about 400 ppm. The CO2 level inside the building is usually higher than that outside the building anyway; however, an inside CO2 concentration of more than 1000 ppm usually means that people will have a problem with inadequate ventilation -- symptoms such as headaches, fatigue, and eye and throat irritation may appear. At these levels, CO2 itself is not causing problems, it is simply being used as a surrogate; however, inadequate ventilation can cause other minor air contaminants to build up to concentrations at which they can cause symptoms.

Ventilation distribution and adequacy were verified on 09/23/2019 and 09/30/2019 by measuring the air concentration of carbon dioxide in a variety of classrooms during peak occupancy periods using a Draeger air sampler and carbon dioxide detector tubes. The occupancy of these areas for the day was considered to be normal occupant density. This test method has an error of +/- 25% for readings <1000 ppm and +/- 15% for readings above 1000 ppm; thus the data need to be interpreted accordingly. The instrument was leak-tested on the day of use prior to any monitoring. The results were as follows:

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LOCATION TIME

CARBON DIOXIDE (PPM)

NUMBER OF OCCUPANTS

TEMPERATURE (F)

09/23/2019

C4 10:02 AM 800 20 74.1

C5 10:08 AM 800 20 76.2

C1 10:17 AM 800 19 77.2

K3 12:45 PM 700 21 76.1

K4 12:32 PM 800 23 75.0

B7 10:49 AM 700 19 75.6

J7 11:05 AM 900 14 78.1

J8 11:15 AM 1000 26 78.7

J9 11:24 AM 1000 22 79.2

J4 2:08 PM 900 9 78.5

D1 12:45 PM 1200 20 75.2

K8 12:57 PM 900 17 80.2

E5 1:17 PM 700 4 79.2

D6 1:32 PM 1100 22 79.0

D2 11:35 AM 800 Just left 78.6

H7 11:54 AM 800 21 78.2

H1 12:06 PM 600 20 79.2

F7 12:26 PM 600 8 78.0

09/30/2019

K9 12:20 PM 900 23 73.8

A3 10:15 AM 700 19 69.1

A6 10:26 AM 1200 18 70.8

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With an outside air concentration of 400 ppm, an indicator of 700 ppm above that, plus allowance made for a potential error of +15%, an indoor air concentration of carbon dioxide above 1265 ppm should be considered significant. The above results indicate that all classrooms had a sufficient fresh air supply for the occupancy on the day of sampling. Other HVAC system observations:

1. The univents opening onto courtyards A and B had mowed grass impacted onto the screens. When mowing, the cut grass should be directed away from the uninvent air intakes.

2. Univent air intakes were observed as unblocked. A few had wasp nests, but these did not appear to be impeding air flow.

INSIDE SOURCES OF INDOOR AIR CONTAMINANTS:

Exploring inside sources of air contaminants involves evaluating the processes and products which are used indoors. Many of these sources can produce irritants or particulates in the air which can be irritants; these are usually resolvable with ventilation and custodial care. Where there is lack of sufficient ventilation, these contaminants cannot be diluted and flushed from the building (where this is possible for the contaminant in question). There are numerous indoor sources of contaminants which may be potential irritants or may serve to aggravate allergic reactions, or cause dizziness, fatigue, headaches or other symptoms. These are some possibilities:

paints, varnishes, glues, and other products which are formulated with solvents

vocational education activities and chemical usage

pesticides, due to active ingredients and/or the solvent carriers

offgassing of formaldehyde or other materials from new products such carpets, floor tiles, wall coverings, furniture, partitions, and generally from plywood, particleboard, strand board, etc. or from new equipment such as computers

custodial products used for cleaning, disinfecting, or polishing of bathrooms, floors, carpets, etc.

fibers from textiles, insulation, paper products, ceiling tiles, air filters

ozone and nitrogen oxides from xerography (photocopying); these gases plus ultrafine particulates from printers (especially laser printers)

nitrogen oxides, sulfur oxides, formaldehyde, and miscellaneous other contaminants from smoking, cooking, pilot lights, heaters, boilers

formaldehyde and dusts from carbonless copy paper

solvents and irritants from mimeographing, blueprint making

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aluminum oxides and other dusts from metal corrosion of cooling coils and other HVAC system components Solutions for inside sources typically involve:

Choosing alternative products or processes for doing the task

Scheduling the task to avoid exposure by building occupants

Using local exhaust ventilation and/or enclosures to restrict or remove air contaminants

Using personal protective equipment: protective gloves and/or eyewear and clothing are appropriate for faculty, staff, and students; however, the use of respiratory protection by students should be seriously re-considered and other methods of protection or source reduction used instead.

For example, if any issues arise from the use of a copier or laser printer, you may wish to consider servicing the machine or having more frequent replacement of the carbon filter on its exhaust, especially if the machine operator notices odors or experiences symptoms. Other alternatives would be to explore the use of local exhaust ventilation for this equipment or to consider venting it directly to the outside.

What was found during my site investigation: The custodial schedule of building care was described as follows: Daily for offices: empty trash, vacuum, disinfect bathrooms, clean windows on doors, wipe tables.

Dustmop hall floors. In rooms without carpet, dustmop; wetmop if needed.

Weekly: clean chalkboards and white boards, wash desktops, clean windows, dust, clean and burnish hallway floors. On Fridays, clean carpets on a rotating schedule or where spills have occurred. Carpet is reported to dry in 1 – 2 hours.

Annually in summer: strip or scrub and wax floors; all floors, walls, and furniture are washed. Carpet is reported as replaced on a rotating schedule every 10 years. The type of vacuum used in the building was unknown during the site visits. You may wish to consider improving custodial care by upgrading the vacuum cleaner to one which has a final filter that is a high-efficiency particulate air filter (HEPA). Improving the capture and removal of respirable particulates can help to reduce irritating, allergic, and sometimes fatigue symptoms that are due to exposure to human dander, pet dander (which people bring on clothing), pollen, mold spores, and dust mites (and their excrement). The safety data sheets (SDSs) for the most commonly used custodial and maintenance products were reviewed during the training workshops and discussions/recommendations were made at that time. Also, it was noted that some products or supplies are donated to the school or may be brought from home; thus their ingredients have not be screened by school policy nor accounted in the school’s chemical inventory and safety data sheet files. Due to the trend of both childhood- and adult-onset asthma, it is prudent to consider removing from the indoor environment potential triggers of allergy, such as products containing perfumes or fragrances. You may wish to consider discontinuing the use of these products as

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unnecessary. (Note: pursuant to this topic, Mr. Bonnewell issued a memo on 06/11/2019 to all ACS Personnel which discussed the concerns of fragrances, humidifiers, oil diffusers, air fresheners, and cleaning products which have not been purchased through the school purchasing process.)

An integrated pest management program is in place and appears to be generally successful. No herbicides are used on the grounds. The pesticide contractor uses glue traps.

The rooms H6, J4, J6, and the Superintendent’s office were observed as cluttered. Certainly this is a subjective observation: it is offered because good custodial care (in addition to fire safety) can be an issue under conditions of rooms with open storage, shelving, or items on the floor which contain considerable amounts of supplies, paper, books, and other items which render cleaning difficult. No odor or symptom complaints were reported to me in connection with copy machines, computers, printers, plotters, laminator, shredder, or fax. Thus no air monitoring was performed for this equipment. Most of the printers are ink-jet; a few are laser printers.

Smoking is not permitted on school grounds, as per NYS law. OUTSIDE SOURCES OF INDOOR AIR CONTAMINANTS:

Exploring potential outside sources of indoor air contaminants involves looking at building exhausts which would be brought back into the building through air intakes or infiltration, as well as investigating products and process which happen adjacent or nearby to the building which could produce air contaminants which could be brought into the building through air intakes or infiltration. Some examples of potential outside sources would be exhaust gases from traffic (including idling delivery trucks) or exhaust air from the building (including boiler stacks and sanitary stacks) which is brought back in the air intakes. What was found during my site investigation: The following items were identified on the roof:

Roof drains

Boiler stacks

Sanitary stacks

Dishwasher/dishroom exhaust

Restroom and locker room exhausts

AHUs as described above

Kitchen powered exhausts

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Observations were made for the air intake minimum separation distances as per ASHRAE 62.1-2019 and these distances, combined with good draft on the roof, indicate that exhaust air re-entrainment is unlikely to be a problem. BIOLOGICAL SOURCES OF INDOOR AIR CONTAMINANTS:

Investigation of biological sources tends to reveal that they are related to a current or past history of building water damage from leaks or condensation, or are related to standing water in ducting or other parts of an HVAC system, biofilms on HVAC components (such as coils), or high building humidity levels. Sometimes they are related to a very tight building causing the recirculation of aerosols from occupants coughing or sneezing. Other sources may include infestations of insects or rodents due to availability of food sources, inadequate bird screens, or mites in paper storage or archival areas.

What was found during my site investigation: The moisture history of the building was reported as follows:

F wing blooded; its flooring was replaced and the 1965 portion was torn down.

G wing skylights leaked in 2004.

A wing skylights leaked about 5 – 10 years ago. Other relevant observations:

As noted above, when carpet is cleaned, it is reported to dry in 1 – 2 hours. This is significant as it is important to dry the carpets in 48 hours or less as it is possible for mold to begin to grow in damp items after 48 hours.

Carpeted classrooms have carpet right up to the sinks/water fountains. The infrared moisture meter indicated numerous rooms with drips and splashes of water on the carpet. As moist areas can lead to mold or bacterial growth, it is desirable to have hard flooring in front of sinks/water fountains.

A removable, cleanable rug could be located at exterior doors; this is very useful to stop dirt and moisture being tracked into the building where they can provide habitat for fungal growth in carpets.

Water stains were observed on the ceiling in C7, F5, C10A adjacent custodial storage, J8, J9, multi-purpose room, kitchen office, I7, K6, K7 and K9 restroom ceilings, F2 women’s restroom. All of these areas were found to be nonactive as per the infrared moisture meter; however, potential sources of the moisture should be identified and resolved.

Plants were observed in numerous classrooms. Care should be taken to make sure that moisture from watering does not wet carpet so as to prevent fungal growth in carpet. Plants should not be allowed to drop debris into the univents.

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A small portion of the crawlspace was observed. As this has a dirt floor, moisture may be of concern depending upon groundwater conditions.

BUILDING FABRIC SOURCES OF INDOOR AIR CONTAMINANTS:

Investigating sources of air contaminants which arise from the construction materials of the building could involve the off-gassing of new materials (such as plywood or particle board), dusts from installation of drywall, or fibers from insulation. Another example of this category would be exposure to formaldehyde from urea-formaldehyde foam insulation. What was found during my site investigation: Typically, offgassing from new materials tends to be most troublesome in the first few months after installation. The most recent remodeling was reported as taking place in 2004 and thus the project work is most likely too old to currently constitute a problem. However, as carpet is renewed on a regular basis, offgassing from new carpet installation may occur. VERBAL REPORTS: Verbal reports on the principal results of the site investigation was presented on 09/23/2019 for 13 administration/faculty/staff and on 09/30/2019 for 6 administration/faculty/staff. This written report is to be submitted to:

Mr. Michael S. Bonnewell, Superintendent of Schools Albion Central School District 324 East Ave. Albion, NY. 14411 mbonnewell@albionk12.org Ms. Angie Brown Albion Health Committee Teachers Albion Teachers Association abrown_0327@yahoo.com

This technical assistance was provided under contract through the Western New York Council for Occupational Safety and Health (WNYCOSH) for which Cornell University – ILR/Workplace Health and Safety Program is a subcontractor. Cornell University - ILR disclaims any warranties with respect to its services or the information it provides. It is not responsible for consequential or incidental damages

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arising out of reliance on the information it gathers, and its liability is limited to the cost of services provided. Please contact me @ (716) 852 - 1444 ext. 111 if I can be of further assistance to you. Sincerely,

Nellie J. Brown, MS, CIH Director, Workplace Health and Safety Program Certified Industrial Hygienist Lead Programs Manager

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