pare, 1, of the “Athens Resolution on the Pollution of Rivers and Lakes and International Law, adopted by the Institute of International Law in 19791 -oJ_‘,rnsweti.m* 1979, vol. 58, Part Two, pa 199; part A, para. 3, of the 1974 Principles concerning tranefrontier pollution of the Organisation for Economic Co-operation and Development (OECD) Recommendation C(74) 222 of 14 November 1974, reprinted in man8 Ezayir.~nunau!; (1966) ; article 2, para. 1, of the Montreal Rules of international law applicable to transfrontfer pollution, adopted by the International Law Association in 1982, .BeJzsti..af_thaS~athh.r.~ lixM.!u (1962): article 1, para, 4, of the 1982 United Nations Convention on the Law of the Sea; article 1 of the 1979 ECE Convention on long-range transboundary sir pollution; article 1, para. (c), of the Council of Europe’s 1969 draft European Convention on the protection of fresh water against pollutionr and article 1, para. (d), of the Council of Europe’s 1974 draft European Convention for the protection of international watercourses against pollution, in Yma~.&?~ob ,..,ua, vol. II (Part. Two), document AlCN.41274, para. 376. - 159 -general in several respects. First, it does not mention any particular type of pollution or polluting agtint !e.g. substances or energy), unlike some other definitions. Second, the definition simply refers to “any detrimental alteration” and thus does not prejudge the question of the threshold at which pollution become impermissible. This threshold is addressed in paragraph 2. The definition is thus a purely factual one. It encompasses all pollution, whether or not it results in “appreciable harm” to other watercourse States within the meaning of article 8 and,more specifically, paragraph 2 of article 23. Third, in order to preserve the factual character of the definition, paragraph 1 does not refer to any specific Q’detrimental” effects, such as harm to human health, property or living resources~ Examples of such
**Analysis**
The text appears to be discussing the concept of pollution and its definition in an international legal context. The focus is on the definition of pollution and its various aspects, including the types of pollutants, the threshold at which pollution becomes impermissible, and the effects of pollution on watercourse States. The text cites various international agreements and conventions, which suggests that the topic is related to international law and environmental protection.

**Category**
Natural resources and environment, International law