About the Web-based Indoor Air Quality Management System As a result of tough new standards/regulations and increased public awareness, indoor air quality (IAQ) has become a significant challenge for property managers around the world. To address this challenge, Theodor Sterling Associates (TSA) developed the Lungs of the CityTM Web-based IAQ Management System www.lungsofthecity.com as an online alternative to the traditional IAQ program. This system is a cost effective internet based proactive IAQ management and reporting tool. Because this system completely separates IAQ testing and data collection from online reporting, it is compatible with any type of IAQ monitoring instrumentation. The cornerstone of this web-based system is the proprietary TSA ‘rule set’ which is a complete set of ‘rules’ that analyzes air quality data and provides interpretive reports. This ‘rule set’ is a product developed through 30 years of experience providing IAQ services to the real estate industry and from leadership in the establishment of national Standards, Best Practices and Guidelines for IAQ, mould and moisture, building performance, ventilation and thermal comfort.