Chemicals used in routine oil and gas development that are classified by the United Nations Globally Harmonized System (GHS) in Categories 1 and 2 for ecotoxicitya.

Chemicals used in routine oil and gas development that are classified by the United Nations Globally Harmonized System (GHS) in Categories 1 and 2 for ecotoxicitya.常规油气开发过程中使用的、经联合国全球统一制度（Globally Harmonized System，GHS）划定为生态毒性类别1和类别2的化学品。