See ESC right:

Environment, healthy

Relevant ICESCR Articles:

12(2)(b): The steps to be taken by the States Parties to the present Covenant to achieve the full realization of this right shall include those necessary for:
(b) The improvement of all aspects of environmental and industrial hygiene;

Related Documents:

Convention to Combat Desertification in Countries Experiencing Serious Drought and/or Desertification, Particularly in Africa