For over 25 years, we offer a wide range of testings and assessments of indoor pollutants, such as:. Miscellaneous Indoor Health Hazards: Radon, Aldehyde, Lead, Volatile Organic Compounds, etc. We are located in Westchester County, NY. We mainly serve the Tri-State Area (New York, New Jersey, and Connecticut), however, on a case-to-case basis, we accept