[kosievdmerwe]

According to this[1] the weight for 1 cubic meter of dry soil is 1200kg, so 6 grams of uranium per cubic meter.

Looking at average suburban lot sizes, they seem to be about 7200 sqft , which is about 668m^2.

Which gives 668m^3 which gives about 4kg of uranium shockingly.

[1] https://www.reference.com/science/much-cubic-meter-soil-weig...

[throw_away]

I thought the numbers from wikipedia looked a little shaky, maybe. I couldn't find those specific numbers in the reference UN PDF.

Google says soil concentration of Uranium is like 3ppm. But, if you do the math, 668 x 1200 x 1000 x (1/1000000) = 802g for every ppm. 3ppm Uranium would be 2.4kg by this number.

Lead is at like 15-40ppm (https://ag.umass.edu/soil-plant-nutrient-testing-laboratory/... ), so between 12 and 32 kg of lead in everyone's back yard?