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If there were 280 drops of the DC-10 mentioned in the article, that is a maximum of 280 * 45000 = 12.6M litres of this, spread of 20 square miles. That is 7.5
by Jabbles 1y ago
If there were 280 drops of the DC-10 mentioned in the article, that is a maximum of 280 * 45000 = 12.6M litres of this, spread of 20 square miles.
That is 7.5 kg (16 lbs) of lead.
But what does that tell you? Is that a lot? The EPA warns against soil that is > 400ppm lead, which is a limit almost 1000 times higher than found in this.
https://www.epa.gov/sites/default/files/2020-10/documents/lead-in-soil-aug2020.pdf https://www.epa.gov/sites/default/files/2020-10/documents/le...
- fuzzfactor 1y agoLooks like you've added some realistic data. The more the better. >But what does that tell you? It's a lot of raw data, but mainly reveals it's all estimation "all the way down". Definitely pounds to kilos of heavy metals were dispensed widely which were not there before. Probably a lot more kilos than people think when you consider all the kinds of heavy metal that's popular today, not only Led ;) And that's just the initial application. Contamination migration will be a much less accurately determined phenomenon, while being potentially much more toxic in those areas of concentration, and less so in areas benefitting from dilution.