ABSTRACT Open markets take place everywhere and are points of sale for agricultural products, aquaculture, cattle farming, pig farming, among others. The aim of this research was to analyze and compare the type of temporary storage of the residues generated in three open markets in the city of Maraba - Pará, Brazil. The method used was the inductive one, with quantitative and qualitative scope and applied nature. The primary data were obtained from four visits to the markets, especially for weighing fish residues. Secondary data were obtained from academic texts found on SciELO, CAPES and IES online platforms. The literary period was between 2010 and 2020. The analysis indicated that the quantity sold was higher in Folha 28 (n = 300 kg; 34.88%) followed by Z-30 (n = 290 kg; 33.72%) and Feira Coberta (n = 270 kg; 31.39%). The largest amount of residues production occurred in Folha 28 (n = 223.82 kg; 58.9%), followed by Feira Covered (n = 151.47 kg; 54.8%) and Z-30 (n = 133.11 kg; 45.6%). Regarding storage, in the three open markets analyzed were used plastic buckets; two of them (Leaf 28, Z-30) use 20 L drums and domestic garbage cans whose lining was a plastic bag. For the internal lining of the buckets and drums, traders use 100 L black plastic bags. In conclusion to this informations, the environmental impacts occur in the three open markets due to non-compliance with the CONAMA Resolution 275/01.