{'fraction_non_alphanumeric': 0.06279069767441861, 'fraction_numerical': 0.017829457364341085, 'mean_word_length': 4.841628959276018, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 4, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
HYDROCHEMICAL CHARACTERIZATION OF URBAN SPRING WATERS FROM TIJUCO STREAM, SUB-BASIN OF RIBEIRÃO DO ONÇA, CENTRAL-NORTH REGION OF BELO HORIZONTE


This work focuses on drawing up the hydrochemical profile of water samples collected in five springs of the Tijuco stream. The evaluation was based on quantification of the elements Al, As, Ba, Be, B, Ca, Cd, Co, Cr, Li, Pb, Cu, Fe, Mg, Mn, Mo, Ni, Se, Si, Sb, U, V, and Zn; the anions F-, Cl-, NO2-, NO3-, SO42-; the cations Na+, NH4+, K+ and the parameters: turbidity, temperature, conductivity, total dissolved solids, oxidation-reduction potential, pH and dissolved oxygen. Alkalinity, hardness, Cr(VI) and dry weight (180 °C) were also quantified. The analyzed parameters were compared with the Maximum Values (VMP) established by the resolutions nº 396/2008 of CONAMA and nº 2.914/2011 of the Ministry of Health. Most of the parameters presented a good agreement with the VMP, however, due to the parameters turbidity, pH, nitrate, and manganese exceed the VMP in some samples, these waters can only be used for human consumption after previous treatment. However, they can be used in animal watering, irrigation and recreation. The waters were classified into three groups: calcium-bicarbonate, sodium-bicarbonate and mixed-bicarbonate.
