Events involving hazardous chemicals are increasing all over the country and with that comes the concern to know the main products involved in these accidents. In this work is have made compilation of accidents related to dangerous products in the state of Goiás from 2007 to 2010 to evaluate its evolution, establish relationships with their possible causes on transport of them. For this propose we had support from 39 fireman of the Fire Brigade on territory of the Goiás state, companies that make the handling of hazardous materials, environmental and transit monitoring agencies, in order to find the assessment the possible causes or correlations with the accident. Hazardous materials with the most occurring number in all compiled years were liquefied petroleum gas, diesel oil, anhydrous alcohol, gasoline and ammonia gas. Comparing the evolution of accidents involving such products and the quantity of production, sales and inspections allowed us to establish its possible causes. On the other hand, it is not always managed to link the accident with some cause and this can be caused by the deficiency in information technology service of the institutions. Thus, it is concluded that the closer to reality is the information on accidents, more evident become its causes, thus contributing to minimization problem and allocating resources.