484. The Speoial Rapporteur mentioned that a list of dangerous substances would require changes in article 2. Subparagraph (a) described activities involving risk. Subparagraphs (b) to (d) introduced the not:ion of dangerous 3.w Articles 1 and 2 of the proposed outline read as follower “CHAPTER I.GENERAL PROVISIONS “-1. &Lgs of the The present articles shall apply with respect to activities carriecl out in the territory of a State or in other places under it8 jurisdiction as recognieecl by international law or* in the absence of such jurisdiction, under its control, when the physical consequences of such activities cause, or create a risk of causing, transboundary harm throughout the process. For the purposes of the present articles; (a) ‘Activities involving risk’ means the activities referred to in article 1, including those carried out directly by the State, which! (i) Involve the handling, storage, production, carriage, unloading or other similar operation of one or more dangerous substances; (ii) Use technologies that produce hazardous radiation; or - 251 I.substances. These paragraphs wou11I eventually have to be drsfted in consultation with experts. Some other changes were introduaed to article 2 in the light of last year’s comments in the Commission am3 in the Qeueral Assembly. Subparagraph (gj on “transboundary harm” had been revised to include the concept of prsWdea;tive measures taken after an aocfdent had (iii) Introduce into the environment dangerous genetically altered organisms and dangerous micro-organisms; (b)‘Dangerous substances ’mean substances that present a[n appreciable] [significant] risk of harm to persons, property, [the use or enjoyment of areas] or the environment, for example, flammable and corrosive materials, explosives, oxiclisante, irrftante, carcinoqens, mutagens an8 toxic, scotoxic an8 radiogenie substances such as those indicated in the annex .., A substanae mey be considered dangerous only if it occurs in certain quantities or concentrations, or in relation to
**Analysis**
The text appears to be discussing international environmental law, specifically the definition of dangerous substances and activities involving risk that can cause harm to persons, property, or the environment. The language used is formal and technical, indicating that it is a legal document or a proposal for a legal framework. The content focuses on the classification of substances and activities, rather than economic development, industry, or other categories.

**Category**
Natural resources and environment, Science and technology