I can't imagine 6 tonnes of charred pine needles dumped in the Ganges effectively lasts more than a day for the purposes of heavy metal absorption. The math is

I can't imagine 6 tonnes of charred pine needles dumped in the Ganges effectively lasts more than a day for the purposes of heavy metal absorption. The math is beyond me, but it doesn't seem overly difficult. Especially when you consider that the needles don't show up all at once. They fall from the sky one at a time. After the first harvest, little Jimmy will be wandering through the once-lush, and now barren pine wasteland individually picking up pine needles with an eyebrow tweezer. It's interesting, but probably only "three legged dog" interesting.