Pinto Carina Aparecida, de Castro Morais Dayane, Franceschini Sylvia do Carmo Castro, Vieira Ribeiro Sarah Aparecida, Filomeno Fontes Edimar Aparecida, Pelucio Pizato Nathália Marcolini, Rocha de Faria Franciane, Pereira Renata Junqueira, Goés da Silva Danielle, Abreu de Carvalho Carolina, de Cássia Carvalho Oliveira Fabiana, Sperandio Naiara, Navarro Anderson Marliere, Crispim Sandra Patrícia, Priore Silvia Eloiza
Department of Nutrition and Health, Universidade Federal de Viçosa (UFV), Viçosa 36570.900, Brazil.
Department of Food Technology, Universidade Federal de Viçosa (UFV), Viçosa 36570.900, Brazil.
J Nutr Metab. 2022 Aug 4;2022:7227511. doi: 10.1155/2022/7227511. eCollection 2022.
The aim of this study was to compare the concentration of iodine in drinking water in the same or different seasons of the year in Brazilian macroregions.
Water samples were collected from the Basic Health Units of eight municipalities that make up the different Brazilian macroregions and the Federal District. Sample collection took place in the summer, autumn, winter, and spring seasons. The spectrophotometric method with "leuco crystal violet" was used to determine the concentration of iodine in the water. Descriptive statistics on the data were performed. To verify if there was a difference in the concentration of iodine in the water between the climatic seasons of the year in the same place and between the same seasons in different locations, the Mann-Whitney or Kruskal-Wallis test was used and a < 0.05 value was considered significant.
Among the climatic seasons throughout the year in the same location, there was a difference in the concentration of iodine in the water in the municipality of Pinhais, state of Paraná/South macroregion, between autumn and summer (=0.041) and winter and summer seasons (=0.003). There was a difference in the concentration of iodine in the water in the summer season between the Midwest and South macroregions; Northeast and Midwest, Southeast and South; North and Midwest, Southeast and South ( < 0.05). In the autumn season, there was a difference in the concentration of iodine in the water between the Midwest and South macroregions; Northeast and Midwest, Southeast and South; North and Midwest, Northeast and South ( < 0.05). In the winter season, there was a difference in the concentration of iodine in the water between the Southeast and Midwest and Southeast and South macroregions ( < 0.05). In the spring season, there was a difference in the concentration of iodine in the water between the Southeast and Midwest and Southeast and South macroregions ( < 0.05).
There were differences in the iodine concentrations in drinking water in different locations in Brazil, when analyzed in the same seasons, and in the municipality of Pinhais between the autumn and summer and winter and summer seasons. Thus, it is suggested to monitor the iodine concentrations in water, considering the differences in climate, characteristics of each region, and soils throughout the Brazilian territory, since the deficiency or excess of iodine can bring risks to the health of the population.
本研究旨在比较巴西各大区域在一年中相同或不同季节饮用水中的碘浓度。
从构成巴西不同大区域及联邦区的八个城市的基本卫生单位采集水样。样本采集在夏季、秋季、冬季和春季进行。采用“无色结晶紫”分光光度法测定水中碘的浓度。对数据进行描述性统计。为验证在同一地点一年中不同气候季节之间以及不同地点相同季节之间水中碘浓度是否存在差异，使用了曼-惠特尼检验或克鲁斯卡尔-沃利斯检验，p<0.05的值被认为具有显著性。
在同一地点全年的不同气候季节中，巴拉那州/南部大区域皮涅伊斯市秋季与夏季（p = 0.041）以及冬季与夏季（p = 0.003）之间水中碘浓度存在差异。夏季，中西部与南部大区域之间、东北部与中西部之间、东南部与南部之间、北部与中西部之间、东南部与南部之间水中碘浓度存在差异（p<0.05）。秋季，中西部与南部大区域之间、东北部与中西部之间、东南部与南部之间、北部与中西部之间、东北部与南部之间水中碘浓度存在差异（p<0.05）。冬季，东南部与中西部以及东南部与南部大区域之间水中碘浓度存在差异（p<0.05）。春季，东南部与中西部以及东南部与南部大区域之间水中碘浓度存在差异（p<0.05）。
在巴西不同地点，当在相同季节进行分析时，以及在皮涅伊斯市秋季与夏季和冬季与夏季之间，饮用水中的碘浓度存在差异。因此，建议监测水中碘浓度，考虑到巴西各地的气候差异、每个区域的特征和土壤情况，因为碘的缺乏或过量会给人群健康带来风险。
