Water From 80% of Curitiba's Rivers Is of Poor or Very Poor Quality

Of the 121 water quality monitoring points in rivers and other bodies of water in Curitiba, only two have good quality and none have excellent quality. The samples from the vast majority - 66% - registered poor quality and another 14% had very poor quality. The quality scale starts at excellent and goes up to very poor. The data are from the National Water Agency for the second half of 2024. The history of the results of water quality monitoring…