Originally Posted by
Flying Binghi
Having a further look-see I find this:
“..Eastridge Little League team which was banned from using the airport’s fields after more than 50 years, are questioning the county after the soil study found lead levels below local, state and federal thresholds..”
Strange.. if lead from aircraft were an issue you’d think after 85 years of aircraft using the airport that there would be elevated lead levels in the soil..
Surely you can see that your statement is a non sequitur. Soil lead levels can be elevated (when compared to prior levels or surrounding land) without being over a threshold level. In addition, atmospheric lead is a distinct issue from soil lead and one that is much more relevant to BLL (which is the subject of the paper). There is a decent literature on the relationship of BLL to proximity to airports and some studies that show relationships with atmospheric and soil lead too.
Some examples:
https://academic.oup.com/pnasnexus/a...25?login=false
https://www.journals.uchicago.edu/do...10.1086/691686
https://ehp.niehs.nih.gov/doi/full/10.1289/ehp.1003231
Nobody is suggesting that there will be children suffering from acute lead poisoning as a result of this level of exposure, but it is at a level where minor cognitive and developmental effects might be possible for the highest level of exposure. They are decent quality studies and certainly relevant to regulators and policy decisions.