Why do sources of water pollution persist for decades in catchments?

Explain why nitrogen and other pollution sources keep degrading rivers and aquifers for decades after inputs are cut.

shoal Update scienceslack.json from shoal-catalog d1cbb60b3b19 26d69d0 · 2周前历史

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1	{
2	"domain": "earth-environment",
3	"topics": [
4	"hydrology"
5	],
6	"kind": "question",
7	"source": {
8	"key": "hydrology-23",
9	"name": "Twenty-three unsolved problems in hydrology",
10	"url": "https://doi.org/10.1080/02626667.2019.1620507",
11	"id": "14",
12	"curator": "Blöschl et al.",
13	"poser": "Blöschl et al.",
14	"status": "open question (2019 agenda)",
15	"as_of": "2026-10-20",
16	"catalog": "0521c19bbd38"
17	},
18	"review": true,
19	"approval": "first-time"
20	}