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Indoor Health Hazards: Case Study on Hazardous Building Material Risks

August 16, 2017
Hazard Data, Home Building
By: Vivian Nguyen

Today we feature an indoor health hazard case study on hazardous building materials.

This post is about the application of indoor health hazard data to a series of case studies on four different indoor health risks.

Make sure to read the entire series of case studies:

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Indoor Health Hazard Case Study on Hazardous Building Material Risks

Indoor health hazards (IHHs) are sometimes found in building supplies that use poor primary and or intermediate raw materials, which are often themselves not required to pass public health safety parameters prior to their use. One such example, Chinese drywall (CDW), was imported and installed in homes built between 2001 through 2008. CDW off-gassing – release of a chemical in the form of a gas – incident reports have found hydrogen sulfide (H2S) and strontium derivatives, which are toxic gases causing the following reactions to both humans and pets:

  • Respiratory irritation
  • Headaches
  • Sinusitis
  • Eye irritation
  • Throat irritation
  • Malaise
  • Weakness

According to the Pediatric Environmental Health Specialty Units (PEHSU), the use of this material was more pronounced in Florida, Louisiana, Virginia, Alabama, and Mississippi. Moreover, approximately 7,000 homes are known to have been built with this material, though some estimates reach over 100,000 homes.

Spatial Query Results

A spatial query for single family homes built between 2001 to 2008 and within the City of Tallahassee, Florida was completed using LandVision™, a powerful map-based real estate research, analysis, and collaboration tool. The same search was done but limited to Jacksonville, Florida. Searched results yielded 5,248 single family homes met the criteria in Tallahassee, FL (Figure 6) while 34,772 single family homes met the same criteria in Jacksonville, FL (Figure 7).

LandVision INS Hazardous Building Risk
LandVision INS: 5,248 single family homes in Tallahassee, FL
LandVision INS Hazardous Building Risk
LandVision INS: 34,772 single family homes in Jacksonville, FL

Author Bio

Customer success, map maker, GIS, location technology


Jose A. Robles is Senior Customer Success Analyst at Digital Map Products. First and foremost, he is a customer advocate keen on finding holistic and scalable solutions. A curious and habitual observer, his fields of study include cultural anthropology, geography, disease ecology, and the application of geospatial technologies, such as Geographic Information Systems (GIS). He is passionate about environmental health topics and intrigued by urban landscapes. Contact Jose at or via LinkedIn.

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