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<br />Environmental Solutions Group ● 7 Maple Leaf Drive., Greensboro, NC 27401 ● 336-373-1538 ● www.Go-ESG.com 19 <br />Report with Protocols for Remediation <br />Environmental Solutions Group <br />Leading people, companies and communities to live, <br />work and prosper in a sustainable environment. <br />IAQ Data Charts <br /> <br />8-4-21 report <br />9-14-20 report <br /> <br /> <br />Key for IAQ Data Chart <br />• TVOC = Total Volatile Organic Compounds, CO2=Carbon Dioxide, CO= Carbon Monoxide, RH= <br />Relative Humidity, TPM= Total Particle Mass <br />• Pink readings exceed recommended level of TVOC or RH. Purple readings exceed <br />recommended levels of CO or CO2. <br />• Bold readings indicate that all four size categories where complete fungal and bacterial <br />spores are located are above the thresholds and airborne contamination is likely. Orange <br />readings exceed the EPA's threshold for total particle mass. <br />o Note: ESG employs a combination of airborne particle counting, which provides a <br />greater detail about the possible sources of particles, and gravimetric measurement, <br />which allows for comparison to the established EPA and WHO air quality standards. <br />• Note: 0.3µm & 0.5µm particles are considered ultrafine particles that usually consist of <br />fragments of organic particles such as bacteria, fungi, viruses, and insects. 1.0µm-10.0µm <br />particles are usually comprised of complete fungal or bacterial spores. Note: Tobacco smoke <br />DocuSign Envelope ID: A9A4637A-BE59-4285-99BE-D253C29FA836