* Aerospace Seed Funding Proposal

* Lead Filter Data

Emissions from leaded aviation fuel are the largest remaining source of lead pollution in the air, soil, and water. Being exposed to lead in the air can cause serious and permanent health problems. People who live close to airports that use leaded fuel are at a higher risk because of the increased amount of lead released into the air. Living within one kilometer of an airport can greatly increase this risk, mainly because ground operations like takeoffs, taxiing, idling, engine startup, and landings release the most lead emissions. 

Studies have found that children who are exposed to these emissions often have higher levels of lead in their blood, which is a major health concern. Some of the effects include lower IQ, reduced academic performance, behavioral problems, and poorer cognitive function. Although more research is still needed on how lead exposure affects adults, it is believed that it may increase the risk of death and cardiovascular disease.

Tetraethyl lead (Pb(C₂H₅)₄) is added to aviation gasoline used in piston-engine aircraft to prevent engine knocking and to raise octane levels. While fuel with less lead can be made, it becomes harder to meet the high-octane requirements needed for high-performance aircraft. Switching to unleaded aviation fuel is challenging for several reasons, including cost, FAA safety regulations, and engine compatibility. Creating a fuel that meets safety standards, provides enough octane for proper engine performance, and is affordable is a complicated process.