People and the environment in the vicinity of the North Mara Gold Mine in Tanzania are being exposed to heavy metals and cyanide pollution, according to a report published in June for the Christian Council of Tanzania (CCT). The study collected and analysed samples of water, sediments/soil for four heavy metals Nickel, Cadmium, Lead and Chromium. Concentrations of almost all of these were found to exceed the standards of the World Health Organization (WHO), and the Tanzanian and US Environmental Protection agencies.