<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">anoxia</topic></authority><related type="other"><topic>hypoxia</topic></related><related type="other"><topic>anoxemia</topic></related><related type="broader"><topic>physicochemical processes</topic></related><variant type="other"><topic>anoxic</topic></variant> <note xml:lang="en"><![CDATA[ The condition characterized by a total depletion in the level of oxygen or an oxygen level at or below 0.1%. Absence of oxygen in atmospheric or aquatic environments normally results in the death of living organisms. In a conservation context, anoxia may be deliberately induced as a means of insect control, by sealing objects in oxygen-free environments that are then purged with non-oxygen gas. For a low oxygen condition, use "hypoxia." For a medical condition characterized by lack of oxygen in the blood, use "anoxemia."  ]]></note></mads>