FRESHAIR SENSOR, LLC — Department of Health and Human Services SBIR Phase I: NIEHS

Description

DESCRIPTION provided by applicant The International Agency for Research on Cancer classified formaldehyde FA as a carcinogen based on inhalation caused squamous cell carcinoma in rats and leukemia and nasopharyngeal cancer in humans Formaldehyde may also be a cause of sinonasal cancer in humans Infants are particularly susceptible to effects from FA most likely as a result of the immaturity of their organs and immune system and the time that they spend indoors where FA concentrations are elevated It was recently reported that exposure while living in housing with levels of ppm was correlated with increased risks of lower respiratory tract and wheezy lower respiratory tract infections in the first five years of life Recent studies have shown that exposure to FA results in microRNA changes in the nasal epithelium with subsequent effects on apoptosis signaling These more serious health effects have been clearly documented at concentrations that are typical in the home and above the NIOSH recommendation and the legal OSHA limit see below However even near the OSHA standard some people experience burning in the eyes nose or throat coughing and even nausea Formaldehyde is ubiquitous and everyone is exposed by inhalation at some level both indoors and outdoors The OSHA legally enforced exposure limit for an eight hour weighted average is ppm The short term exposure limit is ppm for a fifteen minute period The NIOSH recommended eight hour exposure limit is ppm with a short term recommendation of less than ppm exposure Outdoor concentrations are usually in a range from ppm to ppm but up to x higher in heavy traffic A global indoor concentration range of to ppm has been reported with U S levels in nonmanufacturing areas such as schools in a range from to ppm The availability of the devices proposed in this document allow for individuals to protect their health by limiting their exposure as it occurs and not simply being tod of exposure at a time when it is too late to rectify the situation However there is a second benefit to these new devices NIH has an established interest in the correlation of exposure to toxic chemicals with measured health effects Our proposed sensors record cumulative data and allow immediate measurements of exposure so that health researchers can connect the exposure data to health effects The innovative advantage of our proposed sensors over current time averaging devices is the real time record Researchers will have the data to determine whether measured health effects were the result of long term exposure exceeding limits or excessive short term exposure so that the biological response can be better correlated and understood leading to safer exposure limits both in the workplace and in homes PUBLIC HEALTH RELEVANCE Formaldehyde is a widely used chemical employed in the manufacture of building materials and household goods The twelfth edition of the Report on Carcinogens listed formaldehyde as andapos known to be a carcinogenandapos The most important tool in reducing formaldehyde exposure is a means of monitoring the airborne concentration for an individual in real time FreshAir Sensor Corporation proposes to develop a small wearable device that records measurements on an SD card but provides for the first time immediate visual and audio output of those measurements to the device wearer enabling him her to take action to limit excessive exposure and or remove the polluting material from a building environment