The only way to know for sure is to test a few soil samples from the yard and dust samples from inside the house. Also test the water, especially if it is well water.

If you plan to have kids there, the test might be worth it for your peace of mind. If there are no kids I would not bother.

This, plus:

- Which way does the prevailing wind blow? (Toward your prospective house, or away?)

- If the airport had leaky underground storage tanks, in which directions might the gas (& lead) seep?

Also, a quick way to estimate local prevailing winds near an airport is to look at the runway direction. Planes like to land into head winds so if there's only a single runway, those winds are mostly in one direction down the runway.

But which direction???

It's a concern, especially if you have kids.

> children living within 1.5 miles of the Reid-Hillview Airport have elevated levels of lead in their blood, and that the problem gets much worse for those who live closer to or downwind from the airport. > ...children under the age of 18 living close to Reid-Hillview had blood lead levels over 1.8 micrograms per deciliter. In 3.2% of the children surveyed, that number was as high as 3.5 micrograms, and in 1.7% of children it was 4.5 micrograms. Average baseline lead levels in children across the U.S. are closer to 0.84 micrograms.

https://paloaltoonline.com/news/2021/08/06/new-study-finds-l...