water resources of the Basin . . .‘I.IJQ/ Among the decisions adopted by the United Nations Water Conference, held at Mar do1 Plata in 1977, is a recommendation entitled “Environment and health”, which provides that “It ie l!iw &id., Treaty No. 86, p. 276, art, 13. Lw U&J., Treaty No. 123, p. 424, art. 55. l.fw Reproduced in Y~~~QQJ$-.-.,..J,~~.!I, vol. II (E’ar t Two), document AiCN.41274, pare. 326. l.!s/ xl2dd.t Resolution No. 15. 114/ Ikild. tp. 323. - 154 -necessary to evaluate the consequences which the various uses of water have on the environment, to support the measures aimed et controlling water-related diseases, and to protect ecosystems.* m/ (9) In addition to the instruments concerning the protection and preservation of the ecosystems of international watercourses, a number of agreements, reso,lutions, declarations and other instruments recognise the importance of protecting and preserving the environment in general, or ecosystems other than those of watercourses, in particular. of present because they may either include, or be analogous an obligation to protect and preserve the of international watercourse[s] [eystems), A number of these authorities may be mentioned for purposes of illustration. Agreements concerning the environment in general include the 1966 African Convention on the Conservation of Nature and Natural Resources U/ and the 1955 ASEAN Agreement on the Conservation of Nature and Natural Resources. XU/ Reference has alreac¶y been made to the analogous obligation “to protect and preserve the marine environment” contained in xw rt athe NW Water Conference,_Mar de1 Pleta, 24-25 -1977 (E/WP’.70/2pl (United Nations publication-Sales No.1 E.77.II.A.lZ)r p. 25. al-21 Natural Resources/Water Series No. 13, u, note 161, p. 2. See especially article II, “Fundamental principle”, in which the parties “undertake to adopt the measures necessary to ensure conservation, sustainable utilieation and development of soil, water, air, floral and fauna1 resourcea”
**Analysis**
The text appears to be discussing the importance of protecting and preserving the environment, particularly water resources and ecosystems, in the context of international agreements and treaties. The text highlights the need to evaluate the consequences of water use on the environment and to support measures aimed at controlling water-related diseases. This suggests that the text is focused on environmental issues, rather than economic development, industry, or other categories.

**Category**
Natural resources and environment, Health