有害物

Hormesis challenges the existing hazard-assessment process underlying environmental regulations, Calabrese says.

卡拉布列兹也说，激效挑战了现行做为环境管理依据的有质评估程序。

A series of toxic products were produced after photocatalysis on ethanol, such as acetaldehyde, ethyl formate, ethyl acetate, diethoxymethane, 1,1-diethoxyethane.

如醇的反应产包括醛，酸酯，酸甲酯，缩醛等一系列有质。