<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31328224</termId><termName>smog</termName><termType>PT</termType><termNote><![CDATA[ Smoke-filled fog that contaminates the air, most often originating over industrial sites and cities.   ]]></termNote><termCreatedDate>2026-03-30 20:28:29</termCreatedDate><relation><relationType>BT</relationType><termId>31309403</termId><termName>air pollution</termName><termType>PT</termType></relation></term>  </Zthes>