# Water quality bioassay { "id": "S85145603", "title": "Water quality bioassay", "url": "/topics/S85145603", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "b9419c341ebe80c5", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "288454677668954624", "address_version": "morton4x16-v1", "coordinates": [ 0, 20, 19680, 3072 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Here are entered works on testing to determine the degree of pollution of water by comparing its effect on a living organism with the effect of a standard preparation. Works on evaluation of the condition of a body of water based on surveys and other measurements of the resident biota are entered under [Water quality biological assessment.] Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh85145603 No owner-reviewed local answer yet.