noxious substance meaning in English

有毒物质
有害物质

Poisnous and noxious substances in the imported iron ores must not bring or possibly bring harm to man and environment
进口铁矿石中不得含有给人民健康和环境带来危害或是具有潜在危害的有毒有害物质。
Environmental monitoring is another potentially large area for using immunoassays including detection of noxious substances such as pesticides , insecticides , and bacteria in drinking water
环境监控也是另一个潜在的需要免疫检测的大领域，包括检测有害物质如杀虫剂和饮水中的细菌。
Hifacs contains an antidote consisting of a highly activated vegetable carbon with highly absorptive qualities , which makes it very useful in the removal of noxious substances in the gastro - intestinal tract
是一种解毒剂，能吸附干扰胃肠道的细菌性毒素消化性毒素，及其他有机性废物，解除肠内滞留气体及有关症状。