RT Report T1 Transboundary Diagnostic Analysis of Land-based Sources and Activities in the Western Indian Ocean A1 United Nations Environment Programme, A1 Western Indian Ocean Marine Science Association, K1 transboundary pollution K1 coral reef K1 mangrove forest K1 seagrass K1 fishery K1 tourism K1 microbial contamination K1 chemical pollution K1 eutrophication K1 civil society K1 regional cooperation K1 freshwater resource PB United Nations Environment Programme SN 9987-8977-3-8 YR 2009 FD 2009 LK https://wedocs.unep.org/handle/20.500.11822/8739 UL https://wedocs.unep.org/handle/20.500.11822/8739 NO This document presents the results of a series of investigations and expert analyses relating to land-based sources of pollution and other activities that cause the degradation of the coastal and marine environment in the West Indian Ocean (WIO). More specifically, it identifies those elements that may induce impacts beyond national boundaries or that are problems common to several countries of the region. DS UN Environment Document Repository RD Sep 18, 2026